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2024

1. [TVCG]
   Investigating Whether the Mass of a Tool Replica Influences Virtual Training Learning Outcomes Cauquis, Julien, Peillard, Etienne, Dominjon, Lionel, Duval, Thierry, and Moreau, Guillaume IEEE Transactions on Visualization and Computer Graphics 2024 [Abs] [pdf]

   Virtual Reality (VR) has emerged as a promising solution to address the pressing concern of transferring know-how in the manufacturing industry. Making an immersive training experience often involves designing an instrumented replica of a tool whose use is to be learned through virtual training. The process of making a replica can alter its mass, making it different from that of the original tool. As far as we know, the influence of this difference on learning outcomes has never been evaluated. To investigate this subject, an immersive training experience was designed with pre and post-training phases under real conditions, dedicated to learning the use of a rotary tool. 80 participants took part in this study, split into three groups: a control group performing the virtual training using a replica with the same mass as the original tool (m = 100%), a second group that used a replica with a lighter mass than the original tool (m = 50%), and a third group using a replica heavier than the original tool (m = 150%). Despite variations in the mass of the replica used for training, this study revealed that the learning outcomes remained comparable across all groups, while also demonstrating significant enhancements in certain performance measures, including task completion time. Overall, these findings provide useful insights regarding the design of tool replicas for immersive training.

2023

1. The Sense of Embodiment in Virtual Reality and its Assessment Methods Guy, Martin, Normand, Jean-Marie, Jeunet-Kelway, Camille, and Moreau, Guillaume Frontiers in Virtual Reality 2023 [Abs] [doi] [pdf]

   The sense of embodiment refers to the sensations with being inside, having and controlling a body. In virtual reality, it is possible to substitute a person’s body with a virtual one, referred to as an avatar. Modulations of the sense of embodiment through modifications of this avatar have perceptual and behavioural consequences on users that can influence the way users interact with the virtual environment. Therefore, it is essential to define metrics that enable a reliable assessment of the sense of embodiment in virtual reality to better understand its dimensions, the way they interact, and the influence that they have on the quality of interaction in the virtual environment. In this review, we first introduce the current knowledge on the sense of embodiment, its dimensions (senses of agency, body ownership, and self-location), and how they relate the ones with the others. Then, we dive into the different methods currently used to assess the sense of embodiment, ranging from questionnaires to neurophysiological measures. We provide a critical analysis of the existing metrics, discussing their advantages and drawbacks in the context of virtual reality. Notably, we argue that real-time measures of embodiment, that are also specific and do not require double-tasking are the most relevant in the context of virtual reality. Electroencephalography seems a good candidate for the future if its drawbacks (such as its sensitivity to movement and practicality) are improved. While the perfect metric has yet to be identified if it exists, this work provides clues on which metric to choose depending on the context, which should hopefully contribute to better assessing and understanding the sense of embodiment in virtual reality.

2. [TVCG]
   Handwriting for efficient text entry in industrial VR applications: influence of board orientation and sensory feedback on performance Fourrier, Nicolas, Moreau, Guillaume, Benaouicha, Mustapha, and Normand, Jean-Marie IEEE Transactions on Visualization and Computer Graphics 2023 [Abs] [doi] [pdf]

   Text entry in Virtual Reality (VR) is becoming an increasingly important task as the availability of hardware increases and the range of VR applications widens. This is especially true for VR industrial applications where users need to input data frequently. Large-scale industrial adoption of VR is still hampered by the productivity gap between entering data via a physical keyboard and VR data entry methods. Data entry needs to be efficient, easy-to-use and to learn and not frustrating. In this paper, we present a new data entry method based on handwriting recognition (HWR). Users can input text by simply writing on a virtual surface. We conduct a user study to determine the best writing conditions when it comes to surface orientation and sensory feedback. This feedback consists of visual, haptic, and auditory cues. We find that using a slanted board with sensory feedback is best to maximize writing speeds and minimize physical demand. We also evaluate the performance of our method in terms of text entry speed, error rate, usability and workload. The results show that handwriting in VR has high entry speed, usability with little training compared to other controller-based virtual text entry techniques. The system could be further improved by reducing high error rates through the use of more efficient handwriting recognition tools. In fact, the total error rate is 9.28% in the best condition. After 40 phrases of training, participants reach an average of 14.5 WPM, while a group with high VR familiarity reach 16.16 WPM after the same training. The highest observed textual data entry speed is 21.11 WPM.

3. Deep weathering effects Verhulst, Adrien, Normand, Jean-Marie, Moreau, Guillaume, and Patow, Gustavo Computers & Graphics 2023 [Abs] [doi] [pdf]

   Weathering phenomena are ubiquitous in urban environments, where it is easy to observe severely degraded old buildings as a result of water penetration. Despite being an important part of any realistic city, this kind of phenomenon has received little attention from the Computer Graphics community compared to stains resulting from biological or flow effects on the building exteriors. In this paper, we present physically-inspired deep weathering effects, where the penetration of humidity (i.e., water particles) and its interaction with a building’s internal structural elements result in large, visible degradation effects. Our implementation is based on a particle-based propagation model for humidity propagation, coupled with a spring-based interaction simulation that allows chemical interactions, like the formation of rust, to deform and destroy a building’s inner structure. To illustrate our methodology, we show a collection of deep degradation effects applied to urban models involving the creation of rust or of ice within walls.

2022

1. Manipulating the Sense of Embodiment in Virtual Reality: a study of the interactions between the senses of agency, self-location and ownership Guy, Martin, Jeunet-Kelway, Camille, Normand, Jean-Marie, and Moreau, Guillaume In ICAT-EGVE2022, the joint international conference of the 32nd International Conference on Artificial Reality and Telexistence & the 27th Eurographics Symposium on Virtual Environments 2022 [Abs] [pdf]

   In Virtual Reality (VR), the Sense of Embodiment (SoE) corresponds to the feeling of controlling and owning a virtual body, usually referred to as an avatar. The SoE is generally divided into three components: the Sense of Agency (SoA) which characterises the level of control of the user over the avatar, the Sense of Self-Location (SoSL) which is the feeling to be located in the avatar and the Sense of Body-Ownership (SoBO) that represents the attribution of the virtual body to the user. While previous studies showed that the SoE can be manipulated by disturbing either the SoA, the SoBO or the SoSL, the relationships and interactions between these three components still remain unclear. In this paper, we aim at extending the understanding of the SoE and the interactions between its components by 1) experimentally manipulating them in VR via a biased visual feedback, and 2) understanding if each sub-component can be selectively altered or not. To do so, we designed a within-subject experiment where 47 right-handed participants had to perform movements of their right-hand under different experimental conditions impacting the sub-components of embodiment: the SoA was modified by impacting the control of the avatar with visual biased feedback, the SoBO was altered by modifying the realism of the virtual right hand (anthropomorphic cartoon hand or non-anthropomorphic stick “fingers”) and the SoSL was controlled via the user’s point of view (first or third person). After each trial, participants rated their level of agency, ownership and self-location on a 7-item Likert scale. Results’ analysis revealed that the three components could not be selectively altered in this experiment. Nevertheless, these preliminary results pave the way to further studies.

2. Apport de la réalité augmentée comme aide technologique pour le maintien de l’autonomie de personnes présentant une maladie neurologique : revue narrative de la littérature Perrier, Manon, Pillette, Léa, Normand, Jean-Marie, Lécuyer, Anatole, Moreau, Guillaume, and Mélanie, Cogné Ergothérapies 2022 [Abs] [pdf]

   Introduction. Cognitive disorders can limit participation of people with neurological diseases in daily life activities, and more specifically when navigating in their outdoor environment. Augmented Reality (AR) tools seem promising for compensating these difficulties. Aim. Our main objective was to detail and discuss the existing application fields of AR devices for people with neurological disorders. Methods. We conducted our literature review between August and September 2021 using 2 databases: Medline and Scopus, with the following keywords: “augmented reality” AND: “neurological” (and synonyms: “neurology”, “neurologic”), “disorientation”, “mild cognitive”, “aid”, “cognition”. Results. We selected and analysed 13 studies. The selected articles show a good acceptance of AR devices by the participants. Research focused on navigation tasks showed that most of the participants were able to complete the navigation task without any other assistance. The notion of cognitive load which influences the user’s safety during the navigation task when using augmented reality, was often taken into account. Conclusion. We defined a framework for the use of AR that can be applied in rehabilitation and to consider its future use in the person’s environment as a technological aid for spatial navigation. Further studies on the cognitive load in people with neurological pathology are necessary to compare the results obtained to ones on healthy participants.

3. Towards a sensitive urban wind representation in virtual reality Giraldo, Gabriel, Servières, Myriam, and Moreau, Guillaume ISPRS International Journal of Geo-Information 2022 [Abs] [doi] [pdf]

   Wind can influence people’s behavior and their way of inhabiting an architectural or urban space. Furthermore, virtual reality (VR) enables the simulation of different physical and sensitive phenomena such as the wind. We aim to analyze the effects of different wind representations in terms of perception of its properties and sense of presence in VR. We carry out two within-subject studies aiming at evaluating different wind representation suggestions (including audiovisual and tactile stimuli) to identify their effects on wind properties’ perception and sense of presence in the VR scene. Our analysis showed significant effects of tactile restitution over the visual effects used in the study, both for understanding wind properties and for increasing the sense of presence in the VR scene. The tactile condition (T) reduced the estimation error of wind direction by 27% compared to the visual condition (V). The wind force error was reduced by 9.8% using (T) with (V). (T) increased the sense of presence by 12.2% compared to (V). Our second experiment showed an overestimation of the wind force perceived compared to the reference value of the Beaufort scale. For the maximum force value evaluated, the average result was 91% higher than the reference value, while for the lower, the average answer was 77% higher than the reference value. Previous studies have evaluated wind rendering in virtual reality, and others have studied the visualization of wind simulation results. To our knowledge, our study is the first to compare the perception of these two types of representations as well as the effects of wind on elements of the context. We also compared the wind perception to a reference-based method, the Beaufort scale.

4. Virtual Data Sphere: Inverse Stereographic Projection for Immersive Multi-Perspective Geovisualization Spur, Maxim, Tourre, Vincent, Moreau, Guillaume, and Le Callet, Patrick In ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2022 [Abs] [pdf]

   Immersive geospatial visualization finds increasing application for navigation, exploration, and analysis. Many such require the display of data at different scales, often in views with three-dimensional geometry. Multi-view solutions, such as focus+context, overview+detail, and distorted projections can show different scales at the same time, and help place an area of interest within its surroundings. By inverting the principle of stereographic projection – projecting spatial features from a map onto a virtual sphere which surrounds the viewer – we present a novel technique for immersive geospatial focus+context that aims to mitigate problems with existing solutions. This sphere can intersect the map, dividing it into two parts: the inside of the sphere, which stays unchanged, and the outside, which gets projected to the surface, resulting in an inversion of the lens metaphor by distorting the context instead of the focus. This detail-in-context visualization maximizes the amount of context that can be legibly shown by the smooth compression inherent to the stereographic projection, and by utilizing otherwise unused screen space in the sky. The projection method allows for easy control over the projection and distortion characteristics by varying only two main parameters – the sphere’s radius and its position. The omnidirectional nature of our system makes it particularly well-suited for immersive displays by accommodating typical immersive exploration and fully utilizing the additional visual space available. Applying our system to an urban environment, we were able to solicit positive reactions during feedback sessions with experts from urbanism.

5. [TVCG]
   A Systematic Review of Navigation Assistance Systems for People with Dementia Pillette, Léa, Moreau, Guillaume, Normand, Jean-Marie, Perrier, Manon, Lécuyer, Anatole, and Cogné, Melanie IEEE Transactions on Visualization and Computer Graphics 2022 [Abs] [doi] [pdf]

   Technological developments provide solutions to alleviate the tremendous impact on the health and autonomy due to the impact of dementia on navigation abilities. We systematically reviewed the literature on devices tested to provide assistance to people with dementia during indoor, outdoor and virtual navigation (PROSPERO ID number: 215585). Medline and Scopus databases were searched from inception. Our aim was to summarize the results from the literature to guide future developments. Twenty-three articles were included in our study. Three types of information were extracted from these studies. First, the types of navigation advice the devices provided were assessed through: (i) the sensorial modality of presentation, e.g., visual and tactile stimuli, (ii) the navigation content, e.g., landmarks, and (iii) the timing of presentation, e.g., systematically at intersections. Second, we analyzed the technology that the devices were based on, e.g., smartphone. Third, the experimental methodology used to assess the devices and the navigation outcome was evaluated. We report and discuss the results from the literature based on these three main characteristics. Finally, based on these considerations, recommendations are drawn, challenges are identified and potential solutions are suggested. Augmented reality-based devices, intelligent tutoring systems and social support should particularly further be explored.

6. Métavers : Fantasme, Révolution ou simple évolution ? Moreau, Guillaume 2022

2021

1. Expositions aux technologies de réalité virtuelle et/ou augmentée Burkhardt, Jean-Marie, Behar-Cohen, Francine, Grynszpan, Ouriel, Klinger, Evelyne, Lobjois, Régis, Moreau, Guillaume, Nannipieri, Olivier, Paljic, Alexis, Piolino, Pascale, Hung, Thai-Van, Tisseron, Serge, Viaud-Delmon, Isabelle, Davidovici, Myriam, Attia, Dina, and Bayeux, Thomas 2021 [pdf]
2. Direct and Indirect vSLAM Fusion for Augmented Reality Outahar, Mohamed, Moreau, Guillaume, and Normand, Jean-Marie Journal of Imaging 2021 [Abs] [doi] [pdf]

   Augmented reality (AR) is an emerging technology that is applied in many fields. One of the limitations that still prevents AR to be even more widely used relates to the accessibility of devices. Indeed, the devices currently used are usually high end, expensive glasses or mobile devices. vSLAM (visual simultaneous localization and mapping) algorithms circumvent this problem by requiring relatively cheap cameras for AR. vSLAM algorithms can be classified as direct or indirect methods based on the type of data used. Each class of algorithms works optimally on a type of scene (e.g., textured or untextured) but unfortunately with little overlap. In this work, a method is proposed to fuse a direct and an indirect methods in order to have a higher robustness and to offer the possibility for AR to move seamlessly between different types of scenes. Our method is tested on three datasets against state-of-the-art direct (LSD-SLAM), semi-direct (LCSD) and indirect (ORBSLAM2) algorithms in two different scenarios: a trajectory planning and an AR scenario where a virtual object is displayed on top of the video feed; furthermore, a similar method (LCSD SLAM) is also compared to our proposal. Results show that our fusion algorithm is generally as efficient as the best algorithm both in terms of trajectory (mean errors with respect to ground truth trajectory measurements) as well as in terms of quality of the augmentation (robustness and stability). In short, we can propose a fusion algorithm that, in our tests, takes the best of both the direct and indirect methods.

3. Detection of Removed Objects in 3D Meshes Using Up-to-Date Images for Mixed-Reality Applications Roupin, Olivier, Fradet, Matthieu, Baillard, Caroline, and Moreau, Guillaume Electronics 2021 [Abs] [doi] [pdf]

   Precise knowledge of the real environment is a prerequisite for the integration of the real and virtual worlds in mixed-reality applications. However, real-time updating of a real environment model is a costly and difficult process; therefore, hybrid approaches have been developed: An updated world model can be inferred from an offline acquisition of the 3D world, which is then updated online using live image sequences under the condition of developing fast and robust change detection algorithms. Current algorithms are biased toward object insertion and often fail in object removal detection; in an environment where there is uniformity in the background—in color and intensity—the disappearances of foreground objects between the 3D scan of a scene and the capture of several new pictures of said scene are difficult to detect. The novelty of our approach is that we circumvent this issue by focusing on areas of least change in parts of the scene that should be occluded by the foreground. Through experimentation on realistic datasets, we show that this approach results in better detection and localization of removed objects. This technique can be paired with an insertion detection algorithm to provide a complete change detection framework.

2020

1. Camera pose estimation using collaborative databases and single building image Semaan, Bernard, Servières, Myriam, Moreau, Guillaume, and Chebaro, Bilal Journal of Geographic Information System 2020 [doi] [pdf]
2. Exploring Multiple And Coordinated Views For Multilayered Geospatial Data In Virtual Reality Spur, Maxim, Tourre, Vincent, David, Erwan, Moreau, Guillaume, and Le Callet, Patrick Information 2020 [doi] [pdf]
3. [ISMAR]
   Can Retinal Projection Displays Improve Spatial Perception in Augmented Reality? Peillard, Etienne, Itoh, Yuta, Normand, Jean-Marie, Argelaguet, Ferran, Moreau, Guillaume, and Lécuyer, Anatole In IEEE International Symposium on Mixed and Augmented Reality (ISMAR) 2020 [pdf]
4. [ISMAR]
   Perception of Multisensory Wind Representation in Virtual Reality Giraldo, Gabriel, Servières, Myriam, and Moreau, Guillaume In IEEE International Symposium on Mixed and Augmented Reality (ISMAR) 2020 [pdf]
5. Effects of Physical, Non-Immersive Virtual, and Immersive Virtual Store Environments on Consumers’ Perceptions and Purchase Behavior Lombart, Cindy, Millan, Elena, Normand, Jean-Marie, Verhulst, Adrien, Labbé-Pinlon, Blandine, and Moreau, Guillaume Computers in Human Behavior 2020 [Abs] [doi] [pdf]

   The application of virtual reality in human activities has been rapidly growing during the last decade. Shopping for food is an important part of people’s daily lives. As overnight delivery services of fresh produce, such as Amazon Fresh, are in their development stage, more studies on virtual stores for perishable products are needed because the quality of FaVs cannot be easily assessed by consumers when virtual stores are used. This research examines the impact of a physical store, a non-immersive virtual store, and an immersive virtual store environment on consumers’ perceptions and purchase behavior toward fruits and vegetables (FaVs). Experimental between-subjects design (i.e., three groups), combined with a questionnaire survey (after-only design), is used to address the study objectives. The research found that consumers’ perceptions of FaVs in both non-immersive and immersive virtual stores (VS) are similar to those in a physical store. By contrast, consumers buy more FaVs in both non-immersive and immersive VS compared to a physical store. The findings also indicate that consumers tend to rely more on extrinsic cues (i.e., FaVs’ prices) in the immersive VS when evaluating the FaVs on offer and less on intrinsic cues (e.g., FaVs’ appearance) they use in the physical store. The results have important implications for practitioners and researchers with regard to the usefulness of virtual reality for better understanding of consumer behavior.

6. Problématiques de perception en réalité augmentée Moreau, Guillaume 2020
7. MapStack: Exploring Multilayered Geospatial Data in Virtual Reality Spur, Maxim, Tourre, Vincent, David, Erwan, Moreau, Guillaume, and Le Callet, Patrick In Proc. 11th International Conference on Information Visualization Theory and Applications 2020 [Abs] [pdf]

   Virtual reality (VR) headsets offer a large and immersive workspace for displaying visualizations with stereoscopic vision, compared to traditional environments with monitors or printouts. The controllers for these devices further allow direct three-dimensional interaction with the virtual environment. In this paper, we make use of these advantages to implement a novel multiple and coordinated view (MCV) in the form of a vertical stack, showing tilted layers of geospatial data to facilitate an understanding of multi-layered maps. A formal study based on a use-case from urbanism that requires cross-referencing four layers of geospatial urban data augments our arguments for it by comparing it to more conventional systems similarly implemented in VR: a simpler grid of layers, and switching (blitting) layers on one map. Performance and oculometric analyses showed an advantage of the two spatial-multiplexing methods (the grid or the stack) over the temporal multiplexing in blitting. Overall, users tended to prefer the stack, be ambivalent to the grid, and show dislike for the blitting map. Perhaps more interestingly, we were also able to associate preferences in systems with user characteristics and behavior.

8. Influence of virtual objects’ shadows and lighting coherence on distance perception in optical see-through augmented reality Gao, Yuan, Peillard, Etienne, Normand, Jean-Marie, Moreau, Guillaume, Liu, Yue, and Wang, Yongtian Journal of the Society of Information Display 2020 [doi] [pdf]

2019

1. VR/AR Research at Centrale Nantes Moreau, Guillaume 2019
2. VR/AR Research at Centrale Nantes Moreau, Guillaume 2019
3. Augmented Reality Research at Centrale Nantes Moreau, Guillaume 2019
4. Effects of VR and AR on the humain being Moreau, Guillaume 2019
5. [ISMAR]
   Studying Exocentric Distance Perception in Optical See-Through Augmented Reality Peillard, Etienne, Argelaguet, Ferran, Normand, Jean-Marie, Lécuyer, Anatole, and Moreau, Guillaume In IEEE International Symposium on Mixed and Augmented Reality (ISMAR) 2019 [doi] [pdf]
6. [VR]
   Virtual objects look farther on the sides: the anisotropy of distance perception in virtual reality Peillard, Etienne, Thébaud, Thomas, Normand, Jean-Marie, Argelaguet, Ferran, Moreau, Guillaume, and Lécuyer, Anatole In IEEE Virtual Reality 2019 [Abs] [doi] [pdf]

   The topic of distance perception has been widely investigated in Virtual Reality (VR). However, the vast majority of previous work mainly focused on distance perception of objects placed in front of the observer. Then, what happens when the observer looks on the side? In this paper, we study differences in distance estimation when comparing objects placed in front of the observer with objects placed on his side. Through a series of four experiments (n=85), we assessed participants’ distance estimation and ruled out potential biases. In particular, we considered the placement of visual stimuli in the field of view, users’ exploration behavior as well as the presence of depth cues. For all experiments a two-alternative forced choice (2AFC) standardized psychophysical protocol was employed, in which the main task was to determine the stimuli that seemed to be the farthest one. In summary, our results showed that the orientation of virtual stimuli with respect to the user introduces a distance perception bias: objects placed on the sides are systematically perceived farther away than objects in front. In addition, we could observe that this bias increases along with the angle, and appears to be independent of both the position of the object in the field of view as well as the quality of the virtual scene. This work sheds a new light on one of the specificities of VR environments regarding the wider subject of visual space theory. Our study paves the way for future experiments evaluating the anisotropy of distance perception in real and virtual environments.

7. Consumer perceptions and purchase behavior toward imperfect fruits and vegetables in an immersive virtual reality grocery store Lombart, Cindy, Millan, Elena, Normand, Jean-Marie, Verhulst, Adrien, Labbé-Pinlon, Blandine, and Moreau, Guillaume Journal of Retailing and Consumer Services 2019 [doi] [pdf]
8. A Study on Differences in Human Perception between a Real and an AR Scene viewed in an OST-HMD Gao, Yuan, Liu, Yue, Normand, Jean-Marie, Moreau, Guillaume, Gao, Xue, and Wang, Yongtian Journal of the Society for Information Display 2019 [doi] [pdf]
9. Comment les consommateurs réagissent-ils, en situation d’achat, face à des fruits et légumes difformes ? Premiers résultats d’une étude menée en magasin laboratoire virtuel immersif Lombart, Cindy, Labbé-Pinlon, Blandine, Normand, Jean-Marie, Verhulst, Adrien, and Moreau, Guillaume Revue de l’organisation Responsable 2019 [doi] [pdf]

2018

1. Interfaçage visuel en réalité virtuelle Moreau, Guillaume 2018
2. Some studies about perceptual issues in Augmented Reality Moreau, Guillaume 2018
3. Ecosystème de représentations et apprentissage de la conception Milovanovic, Julie, Siret, Daniel, Moreau, Guillaume, and Miguet, Francis In Proceedings SCAN’18 - 8ème Séminaire de Conception Architecturale Numérique 2018 [doi]
4. Representational Ecosystems in Architectural Design Studio Critique: Do changes in the representational ecosystem affect tutors and students behaviors during design critiques? Milovanovic, Julie, Siret, Daniel, Moreau, Guillaume, and Miguet, Francis In Proceedings of the 36th eCAADe Conference 2018
5. Réalité virtuelle et réalité augmentée : mythes et réalités 2018
6. Influence of Being Embodied in an Obese Virtual Body on Shopping Behavior and Product Perception in VR Verhulst, Adrien, Normand, Jean-Marie, Lombart, Cindy, Sugimoto, Maki, and Moreau, Guillaume Frontiers in Robotics and AI: Virtual Environments 2018 [doi] [pdf]
7. Voir l’invisible : de la vision par ordinateur aux réalités augmentée et virtuelle Moreau, Guillaume, and Normand, Jean-Marie Revue française d’Histotechnologie 2018 [pdf]
8. Virtual Reality and Augmented Reality: myths and realities 2018

2017

1. Challenges and perspectives of Augmented Reality for museum applications Moreau, Guillaume 2017
2. Voir l’invisible : de la vision par ordinateur aux réalités augmentée et virtuelle Moreau, Guillaume 2017
3. Evaluation of Facial Expressions as an Interaction Mechanism and their Impact on Affect, Workload and Usability in an AR game Transon, Alan, Verhulst, Adrien, Normand, Jean-Marie, Moreau, Guillaume, and Sugimoto, Maki In 23rd International Conference on Virtual Systems and Multimedia 2017
4. Generation of variability in shape, aspect and time of 3D Fruits and Vegetables Verhulst, Adrien, Normand, Jean-Marie, and Moreau, Guillaume In 23rd International Conference on Virtual Systems and Multimedia 2017
5. Enhancing design representational environment to support design learning in the studios Milovanovic, Julie, Siret, Daniel, Moreau, Guillaume, and Miguet, Francis In 13th Biennial International Conference of the European Architectural Envisioning Association 2017
6. A geographic data gathering system for image geolocalization refining Semaan, Bernard, Servières, Myriam, Moreau, Guillaume, and Chebaro, Bilal In 2nd SDSC Conference 2017
7. Virtual and Augmented Reality in architectural design and education Milovanovic, Julie, Moreau, Guillaume, Siret, Daniel, and Miguet, Francis In CAADs Future 2017
8. A Study of Virtual Visual Servoing Sensitivity in the Context of Image/GIS Registration for Urban Environments Wei, Hengyang, Pressigout, Muriel, Servières, Myriam, Morin, Luce, and Moreau, Guillaume In Machine Vision Applications 2017 [doi]
9. A study on the use of an immersive Virtual Reality store to investigate consumer perceptions and purchase behavior toward non standard fruits and vegetables Verhulst, Adrien, Normand, Jean-Marie, Lombart, Cindy, and Moreau, Guillaume In IEEE Virtual Reality 2017 [doi]

2016

1. Tracking without textures Moreau, Guillaume 2016
2. Deux techniques uni-manuelles de manipulation avec contraintes pour la modélisation 3D sur TabletPC Wu, Siju, Ricca, Aylen, Chellali, Amine, Otmane, Samir, and Moreau, Guillaume In Actes de la 28ième conférence francophone sur l’Interaction Homme-Machine 2016
3. Real-time surface of revolution reconstruction on dense SLAM Yang, Liming, Uchiyama, Hideaki, Normand, Jean-Marie, Moreau, Guillaume, Nagahara, Hajime, and Taniguchi, Rin-ichiro In International Conference on 3D Vision 2016 [doi]
4. Practical and precise projector-camera calibration Yang, Liming, Normand, Jean-Marie, and Moreau, Guillaume In IEEE International Symposium on Mixed and Augmented Reality (ISMAR) 2016 [doi]

2015

1. Augmented reality, scientific challenges and applications Moreau, Guillaume 2015
2. Video-GIS registration Moreau, Guillaume 2015
3. Augmented reality for urban and architectural applications Moreau, Guillaume 2015
4. Réalité virtuelle pour les projets architecturaux et urbains - atouts et limites Moreau, Guillaume 2015
5. SIG, formes urbaines et représentation Moreau, Guillaume 2015
6. LayerStroke: a Layer based Selector for Small Target Acquisition Wu, Siju, Chellali, Amine, Otmane, Samir, and Moreau, Guillaume In 27ème conférence francophone sur l’Interaction Homme-Machine (IHM-2015) 2015
7. TouchSketch: a touch-based interface for 3D object manipulation and editing Wu, Siju, Otmane, Samir, Chellali, Amine, and Moreau, Guillaume In ACM Virtual Reality Software and Technology 2015 [doi]
8. Geolocation for Printed Maps Using Line Segment-Based SIFT-like Feature Matching Minster, Gautier, Moreau, Guillaume, and Saito, Hideo In ISMAR 2015 workshop on Challenges and Applications of Urban Augmented Reality 2015 [doi]
9. Visually-Realistic Appearance Changes of Fruits and Vegetables using Particle Systems Verhulst, Adrien, Normand, Jean-Marie, and Moreau, Guillaume In Computer Graphics Interface 2015
10. Towards the effective use of available educational resources : Designing Adaptive Hypermedia Environments for the Engineering Sciences Carolan, Simon, Moreau, Guillaume, Magnin, Morgan, and Chinesta, Francisco In IEEE International Conference on Advanced Learning Technologies (ICALT 2015) 2015
11. [ISMAR]
    Local Geometric Consensus: a general purpose point pattern-based tracking algorithm Yang, Liming, Normand, Jean-Marie, and Moreau, Guillaume In ISMAR 2015 2015 [doi] [pdf]
12. Impact of Visual Cues on Climate Perception in Virtual Urban Environments: A User Study Vigier, Toinon, Moreau, Guillaume, and Siret, Daniel In BuiltViz’15 2015
13. [TVCG]
    Local Geometric Consensus: a general purpose point pattern-based tracking algorithm Yang, Liming, Normand, Jean-Marie, and Moreau, Guillaume IEEE Transactions on Visualization & Computer Graphics 2015 [Abs] [doi] [pdf]

    We present a method which can quickly and robustly match 2D and 3D point patterns based on their sole spatial distribution, but it can also handle other cues if available. This method can be easily adapted to many transformations such as similarity transformations in 2D/3D, and affine and perspective transformations in 2D. It is based on local geometric consensus among several local matchings and a refinement scheme. We provide two implementations of this general scheme, one for the 2D homography case (which can be used for marker or image tracking) and one for the 3D similarity case. We demonstrate the robustness and speed performance of our proposal on both synthetic and real images and show that our method can be used to augment any (textured/textureless) planar objects but also 3D objects.

14. Gérer les informations temporelles dans et par les modèles informatiques Bertrand, Frédéric, Faucher, Cyril, Lafaye, Jean-Yves, Moreau, Guillaume, Servières, Myriam, and Zaki, Chamseddine Revue Internationale de Géomatique, numéro spécial "modéliser les dynamiques spatiales" 2015 [doi] [pdf]
15. Augmenting off-the-shelf paper maps using intersection detection and Geographical Information Systems Yang, Liming, Normand, Jean-Marie, and Moreau, Guillaume In IAPR Conference on Machine Vision Application 2015
16. HorizontalDragger: a Freehand Remote Selector for Object Acquisition Wu, Siju, Chellali, Amine, Otmane, Samir, and Moreau, Guillaume In IEEE Virtual Reality 2015
17. Real Time Detection and Tracking of Printed Maps Based on Road Structure Callier, Sébastien, Saito, Hideo, and Moreau, Guillaume ITE Transactions on Media Technology and Applications 2015 [doi]
18. From visual cues to climate perception in virtual urban environments Vigier, Toinon, Moreau, Guillaume, and Siret, Daniel In Proc. IEEE Virtual Reality (poster) 2015

2014

1. Réalité augmentée : défis scientifiques et applications Moreau, Guillaume 2014
2. Réalité virtuelle - concepts et outils Fuchs, Philippe, Moreau, Guillaume, and Paljic, Alexis 2014
3. Extracting domain ontologies from reference books Carolan, Simon, Chinesta, Francisco, Evain, Christine, Magnin, Morgan, and Moreau, Guillaume In IEEE International Conference on Advanced Learning Technologies 2014 [pdf]
4. Using existent metrics to evaluate a text-based 3D information visualization Zhang, Fan, Tourre, Vincent, and Moreau, Guillaume In WSCG, 22nd International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2014 [pdf]
5. Robust Random Dot Markers: towards augmented unprepared maps with pure geographic features Yang, Liming, Normand, Jean-Marie, and Moreau, Guillaume In ACM Virtual Reality Software and Technology 2014 [doi]
6. Challenges of Image-Based Crowd-Sourcing for Situation Awareness in Disaster Management Challenges of Image-Based Crowd-Sourcing for Situation Awareness in Disaster Management Challenges of Image-based crowd-sourcing for situation awareness in disaster management Moreau, Guillaume, Servières, Myriam, Normand, Jean-Marie, and Magnin, Morgan 2014 [doi]
7. Applying LoD and perceptive effects to 3D urban semantics visualization Zhang, Fan, Tourre, Vincent, and Moreau, Guillaume In Eurographics Workshop on Urban Data Modelling and Visualization 2014
8. 3D City Models and urban information: current issues and perspectives Billen, Roland, Cutting-Decelle, Anne-Françoise, Marina, Ognen, Almeida, J.P., Caglioni, M., Falquet, Gilles, Leduc, Thomas, Métral, Claudine, Moreau, Guillaume, Perret, J., Rabino, Giovanni, San José, Roberto, Yatskiv, I., and Zlatanova, S. 2014 [doi]
9. A new method to characterize density adapted to coarse city model Hamaina, Rachid, Leduc, Thomas, and Moreau, Guillaume 2014 [doi] [pdf]

2013

1. Video/GIS registration system based on skyline matching method Zhu, Shupeng, Morin, Luce, Pressigout, Muriel, Moreau, Guillaume, and Servières, Myriam In IEEE International Conference on Image Processing 2013 [doi]
2. Visual immersion issues in Virtual Reality: a survey Moreau, Guillaume In SIBGRAPI Tutorial 2013 [doi]
3. Feeling the urban project: the use of virtual reality for a perceptual approach of the urban space Vigier, Toinon, Moreau, Guillaume, Lescop, Laurent, and Siret, Daniel In 2013 European Architectural Envisioning Association (EAEA) 11th Conference 2013
4. Challenges of Image-based crowd-sourcing for situation awareness in disaster management Moreau, Guillaume, Servières, Myriam, Normand, Jean-Marie, and Magnin, Morgan 2013
5. Analysis of virtualization as a solution to VR-system mutualization Normand, Jean-Marie, Milliat, Aurélien, Christie, Marc, Picarougne, Fabien, and Moreau, Guillaume In International Conference on Artificial Reality and Telexistence (poster) 2013
6. Sensitive Suggestion and Perception of Climatic Effects in Virtual Urban Environments Vigier, Toinon, Moreau, Guillaume, Siret, Daniel, and Lescop, Laurent In International Conference on Artificial Reality and Telexistence (poster) 2013
7. Sensitive suggestion and perception of climatic effects in virtual urban environments Vigier, Toinon, Moreau, Guillaume, Siret, Daniel, and Lescop, Laurent In ACM Sympusium on Applied Perception 2013 [pdf]
8. Design of a Visual Query Language for Geographic Information System on a Touch Screen Wu, Siju, Otmane, Samir, Moreau, Guillaume, and Servières, Myriam In HCI International 2013 2013
9. Towards augmented learning in science and engineering in higher education Carolan, Simon, Chinesta, Francisco, Evain, Christine, Magnin, Morgan, and Moreau, Guillaume In IEEE International Conference on Advanced Learning Technologies 2013
10. A General Strategy for Semantic Levels of Details in 3D Urban Visualization Zhang, Fan, Tourre, Vincent, and Moreau, Guillaume In Eurographics Workshop On Urban Data Modelling And Visualisation 2013 [Abs] [doi]

    Applications based on urban environments are applied frequently in daily life which increases the needs for a high quality visualization result. It combines the urban environment and the special application-related topic together. The urban environment can be visualized with different scales, namely with different levels of detail to improve rendering and processing performance of the application. Visualization for the special topic, semantics, similarly is in need of a smart strategy to stay consistent with information density. This paper proposes a general strategy to handle semantic levels of detail visualization in urban environment. An example is given to illustrate how it is applied. Later, a mapping between urban environment levels of detail and semantic levels of detail is discussed. In the last part, the limitations of the general strategy are stated. And visualization issues for semantics are listed such as the proper visualization form and technique for a given semantic level of detail. This paper aims to bring about a wider discussion on semantic levels of detail visualization in urban environment.

11. Semantic visualisation in 3D urban environment: taking text as an example Zhang, Fan, Tourre, Vincent, and Moreau, Guillaume In 4th International Conference on Information Visualization Theory and Applications 2013

2012

1. 3rd Gloval Center of Excellence symposium, Keio University, Japan Moreau, Guillaume 2012
2. DoF-based Classification of Augmented Reality Applications Normand, Jean-Marie, and Moreau, Guillaume In ISMAR workshop "Classifying the AR Presentation Space" 2012
3. Une méthode d’estimation du temps de parcours : application de recherche d’itinéraires dans un contexte d’urgence Soussi, Mohamed, Follin, Jean-Michel, Moreau, Guillaume, Bouju, Alain, and Polidori, Laurent In Sagéo 2012 2012
4. Sensory representations of urban environments in virtual reality: Towards the suggestion of virtual microclimatic ambiances Vigier, Toinon, Siret, Daniel, Moreau, Guillaume, and Lescop, Laurent In 2nd International Congress on Ambiances 2012
5. Skyline matching: a robust registration method between video and GIS Zhu, Shupeng, Pressigout, Muriel, Morin, Luce, and Moreau, Guillaume In 3U3D 2012: Usage, Usability and Utility of 3D City Models 2012 [doi]
6. Developing an ontology of space: application to 3D city modeling Billen, Roland, Zaki, Chams-Eddine, Servières, Myriam, Moreau, Guillaume, and Hallot, Pierre In 3U3D 2012: Usage, Usability and Utility of 3D City Models 2012
7. All range and heterogeneous multi-scale 3D city models He, Shuang, Besuievsky, Gonzalo, Patow, Gustavo, Tourre, Vincent, and Moreau, Guillaume In 3U3D 2012: Usage, Usability and Utility of 3D City Models 2012
8. A new concept of perceptual fidelity to augment virtual urban environments with microclimatic ambiances Vigier, Toinon, Moreau, Guillaume, Siret, Daniel, and Lescop, Laurent In 3U3D 2012: Usage, Usability and Utility of 3D City Models 2012
9. Footprint-Based Generalization of 3D Building Groups at Medium Level of Detail for Multi-Scale Urban Visualization He, Shuang, Moreau, Guillaume, and Martin, Jean-Yves International Journal on Advances in Software 2012
10. Markus, an open-source web application to annotate students paper on-line Magnin, Morgan, Moreau, Guillaume, Varoquaux, Nelle, Vialle, Benjamin, Reid, Karen, Conley, Mike, and Gehwolf, Severin In ESDA 2012 2012
11. Design of 3D buildings to update a GIS Liu, Ruijun, Servières, Myriam, and Moreau, Guillaume In ESDA 2012 2012
12. Real-time adaptive blur for reducing eye strain in stereoscopic displays Leroy, Laure, Fuchs, Philippe, and Moreau, Guillaume ACM Transactions on Applied Perception 2012 [doi]
13. A functional typology of augmented reality applications based on their tracking requirements Normand, Jean-Marie, Servières, Myriam, and Moreau, Guillaume In LAMDa workshop 2012
14. Towards urban fabrics characterization based on buildings footprints Hamaina, Rachid, Leduc, Thomas, and Moreau, Guillaume In Agile 2012 2012 [doi]
15. Enrichissement d’un réseau routier à partir de trajectoires : application dans un contexte d’urgence Soussi, Mohamed, Follin, Jean-Michel, Moreau, Guillaume, Bouju, Alain, and Polidori, Laurent Ingénierie des Systèmes d’Information 2012 [doi]
16. A new typology of augmented reality applications Normand, Jean-Marie, Servières, Myriam, and Moreau, Guillaume In ACM Augmented Human 2012 [doi]
17. A GIS Data updating method with video Liu, Ruijun, Servières, Myriam, and Moreau, Guillaume In GRAPP 2012 2012
18. Footprint based generalization of building groups for virtual city visualization He, Shuang, Moreau, Guillaume, and Martin, Jean-Yves In GeoProcessing 2012, The Fourth International Conference on Advanced Geographic Information Systems, Applications, and Services 2012
19. Caractérisation des tissus urbains à partir de l’analyse structurelle des réseaux viaires Hamaina, Rachid, Leduc, Thomas, and Moreau, Guillaume Cybergéo : European Journal of Geography 2012 [doi]

2011

1. Visual fatigue reduction for immersive stereoscopic displays by disparity, content and focus-point adapted blur Leroy, Laure, Fuchs, Philippe, and Moreau, Guillaume IEEE Transactions in Industrial Electronics 2011 [doi]
2. Utilisation des tests de concordance de scripts pour l’évaluation en informatique Magnin, Morgan, and Moreau, Guillaume Sciences et Technologies de l’Information et de la Communication pour l’Éducation et la Formation 2011
3. Generic modeling of application and spatiotemporal data: application to the study of pedestrian behavior Zaki, Chamseddine, Zekri, Elyes, Servières, Myriam, Moreau, Guillaume, and Hégron, Gérard Intelligent Decision Technology 2011 [Abs] [doi]

   In this paper we propose a methodology describing a global process used to model both urban spatiotempporal data and applications. During the design phase, we use a tool based on the Entity-Relation formalism that is dedicated to spatiotemporal data design (MADS). The resulting conceptual schemas are adapted to the particularities of the urban data by distingusihing between physical concepts (continuants) and events (occurents). This distinction enables a better readability of conceptual schemas and a more powerful interoperability. The resulting schemas are then implemented in an object oriented environment. In the end, we use a GIS to query and graphically represent urban data. In order to test the capacity of our proposed modeling methodology in a real case, we apply it on a case study whose objective is to analyze pedestrian walkways in urban areas

4. Implementing conceptual spatiotemporal model into Object DBMS with semantic preserving Zaki, Chamseddine, Servières, Myriam, and Moreau, Guillaume In IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services 2011 [doi]
5. Transforming conceptual spatiotemporal model into Object model with semantic keeping Zaki, Chamseddine, Servières, Myriam, and Moreau, Guillaume In 5th International workshop on Semantic and Conceptual Issues in GIS (SeCoGis 2011) 2011 [doi]
6. Virtual Reality: concepts and technologies 2011 [Abs]

   A manual for both designers and users, comprehensively presenting the current state of experts’ knowledge on virtual reality (VR) in computer science, mechanics, optics, acoustics, physiology, psychology, ergonomics, ethics, and related area. Designed as a reference design guide to help the reader develop a VR project, it presents the importance of the user’s needs and various aspects of the human computer interface (HCI). It further treats technical aspects of VR, hardware and software implementations, and details on the sensory and psycho-sensory interfaces. Providing various concepts and technologies, including mathematics and modelling techniques, it allows the reader to formalize, conceptualize and construct a virtual reality project from original thought to application. For engineers, computer scientists and computer game developers and as an educational tool in courses for senior senior graduate students.

7. La professionnalisation des étudiants en informatique par les projets libres Magnin, Morgan, and Moreau, Guillaume In Proc. Questions de pédagogie dans l’enseignement supérieur 2011
8. MarkUs, un logiciel libre pour l’annotation du code et des travaux rendus par les étudiants en informatique Magnin, Morgan, Moreau, Guillaume, and Vialle, Benjamin 2011
9. Le Tablet PC : l’alliance de l’écriture manuscrite avec les fonctionnalités du numérique au service d’un cartable électronique Magnin, Morgan, Moreau, Guillaume, and Vialle, Benjamin 2011
10. Facades Modeling from a Ground-View Video with Map constraints Liu, Ruijun, Servières, Myriam, and Moreau, Guillaume In IAPR Conference on Machine Vision Application 2011
11. A structural analysis of the street network to urban fabric characterization Hamaina, Rachid, Leduc, Thomas, and Moreau, Guillaume In International Cartographic Conference 2011
12. Camera tracking by on-line learning of keypoint arrangement with LLAH for augmented reality applications Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume Virtual Reality 2011 [doi] [pdf]

2010

1. Utilisation des TCS en informatique Moreau, Guillaume, and Magnin, Morgan 2010
2. AR geovisualization framework based on on-line geographic data matching between a map with intersections and its intersection database on GIS Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume Journal of the Institute of Image Information and Television Engineers 2010
3. Caractérisation des tissus urbains à partir de l’analyse structurelle des réseaux de rues Hamaina, Rachid, Leduc, Thomas, and Moreau, Guillaume In Journées du GDR Modys 2010
4. Proceedings of the 1st Augmented Human International Conference, AH 2010, Megève, France, April 2-4, 2010 2010
5. 3D-GIS from Images and Map Constraints in an AR Context: A review of Architecture Modeling from Images or Video Liu, Ruijun, Servières, Myriam, and Moreau, Guillaume In Journées de l’Association Française de Réalité Virtuelle 2010
6. Event-based semantic visualization of trajectory data in urban city with a space-time cube Event-based semantic visualization of trajectory data in urban city with a space-time cube Event-based semantic visualization of trajectory data in urban city with a space-time cube Zhong, Chen, Zaki, Chamseddine, Tourre, Vincent, and Moreau, Guillaume In Advances in Visualization, Imaging and Simulation 2010
7. Retour sur l’usage de Tablets PC à l’Ecole Centrale de Nantes : autonomie et initiatives Magnin, Morgan, and Moreau, Guillaume In TICE 2010 2010
8. Diffuser les bonnes pratiques autour de l’usage des blogs en pédagogie Evain, Christine, Magnin, Morgan, and Moreau, Guillaume In TICE 2010 2010
9. Utilisation des tests de concordance de scripts pour l’évaluation en informatique Magnin, Morgan, and Moreau, Guillaume In TICE 2010 2010
10. Towards outdoor localization from GIS data and 3D content extracted from videos Bioret, Nicolas, Moreau, Guillaume, and Servières, Myriam In IEEE ISIE special session on Emerging Technologies 2010 [doi]
11. Virtual Reality as a landscape decision-making tool: The wind turbines’ case Jallouli, Jihen, and Moreau, Guillaume International Journal of Design Sciences and Technology 2010
12. Advances in Geoinformation Technologies Leduc, Thomas, Bocher, Erwan, and Moreau, Guillaume 2010
13. Real time comfort enhancement in stereoscopic displays by disparity and content-adapted blur Leroy, Laure, Fuchs, Philippe, and Moreau, Guillaume In IEEE ISIE special session on Emerging Technoloy 2010 [doi]
14. Urban spatiotemporal data-modeling: application to the study of pedestrian walkways Zaki, Chams-Eddine, Zekri, Elyes, Servières, Myriam, Moreau, Guillaume, and Hégron, Gérard In Advances in Intelligent Decision Technologies 2010 [doi]

2009

1. Images as a link between the real world and information systems Moreau, Guillaume 2009
2. Representation and construction of information systems with digital images Moreau, Guillaume 2009
3. Urban Localization based on Correspondences between Street Photographs and 2D Building GIS Layer Bioret, Nicolas, Moreau, Guillaume, and Servières, Myriam In CORESA, session spéciale "Géolocalisation", Toulouse, France 2009
4. Pose computation based on Correspondence between 2D GIS and Street Images Bioret, Nicolas, Moreau, Guillaume, and Servières, Myriam In 2nd Mediterranean Conference on Intelligent Systems and Automation, Zarzis, Tunisie 2009
5. Géolocalisation en milieu urbain par appariement entre une collection d’images et un SIG 2D Bioret, Nicolas, Moreau, Guillaume, and Servières, Myriam Ingénierie des Systèmes d’Information, numéro spécial "Systèmes d’information et géo-localisation" 2009 [doi] [pdf]
6. Le Traité de la réalité virtuelle, volume 5 : Les humains virtuels Donikian, Stéphane 2009
7. An immersive, multisensory and interactive approach for landscape study in virtual environments: the wind turbines’ case Jallouli, Jihen, and Moreau, Guillaume In Innovations for building and construction (12th EuropIA Conference Proceedings) 2009
8. Wind Turbines: Types, Economics and Development Jallouli, Jihen, and Moreau, Guillaume 2009 [pdf]
9. An immersive path-based study of wind turbines landscape: a French case in Plouguin Jallouli, Jihen, and Moreau, Guillaume Renewable Energy 2009 [doi]
10. Some experiments about shape perception in stereoscopic displays Leroy, Laure, Fuchs, Philippe, and Moreau, Guillaume In Stereo Displays and Applications 2009 [doi] [pdf]
11. Change Detection Based on SURF and Color Edge Matching Mitsumori, Ryo, Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume In International Workshop on Vision and Control for Access Space, ACCV workshop 2009
12. Augmented Reality and Urban GIS: towards closing the loop between acquisition and visualization of geographical data Moreau, Guillaume In Geovizualisation workshop 2009
13. Images as a link between the real worls and temporal 3D GIS: Moreau, Guillaume 2009
14. Représentation et construction des systèmes d’information par l’image Moreau, Guillaume 2009
15. AR-based GIS: Towards closing the loop between acquisition and visualization of geographical data Moreau, Guillaume, Servières, Myriam, and Saito, Hideo In ISMAR workshop "Let’s Go Out: Research in Outdoor Mixed and Augmented Reality" 2009
16. Communiquer l’environnement par la réalité virtuelle : la perception de l’espace urbain Tahrani, Souha, and Moreau, Guillaume In CAAD Futures 2009
17. MapBook AiR: AR City Representation System on a Physical Map using Topological Information Uchiyama, Hideaki, Saito, Hideo, Nivesse, Vivien, Servières, Myriam, and Moreau, Guillaume In The 3rd Pacific-Rim Symposium on Image and Video Technology (PSIVT2009), Tokyo, Japon 2009
18. AR City Representation System based on Map Recognition using Topological Information Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume In Virtual and Mixed Reality, Third International Conference, VMR 2009, Held as Part of HCI International 2009 2009 [doi]
19. AR GIS on a Physical Map based on Map Image Retrieval using LLAH Tracking Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume In IAPR Conference on Machine Vision Application 2009
20. Image Based View Localization System Retrieving from a Panorama Database by SURF Yazawa, Naoyuki, Uchiyama, Hideaki, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume In IAPR Conference on Machine Vision Application 2009
21. Using Conceptual and Ontological Models for Tracking Changes of Spatio-Temporal Objects and Concepts over Time Zaki, Chamseddine, Servières, Myriam, and Moreau, Guillaume In Agile (poster) 2009
22. Combining Conceptual and Ontological Models for Representing Spatio-Temporal Data and Semantic Evolution in GIS Zaki, Chamseddine, ServiŽères, Myriam, and Moreau, Guillaume In Ontologies for urban development: Future development of urban ontologies 2009

2008

1. La réalité virtuelle au service du développement urbain durable Moreau, Guillaume 2008
2. Géolocalisation à partir d’images en environnement urbain en s’appuyant sur un SIG 2D Bioret, Nicolas, Moreau, Guillaume, and Servières, Myriam In 3èmes journées de l’Association Française de Réalité Virtuelle, Bordeaux, 30-31 octobre 2008 2008
3. Outdoor Localization based on image/GIS correspondence using a simple 2D building layer Bioret, Nicolas, Servières, Myriam, and Moreau, Guillaume In 2nd International Workshop on Mobile Geospatial Augmented Reality 2008
4. urbSAT: from spatial SQL to urban indicators Bocher, Erwan, Leduc, Thomas, Long, Nathalie, Cortés, Fernando Gonzalez, and Moreau, Guillaume In FOSS4G 2008 2008 [Abs]

   At present, more than a half of the world population is living in urban areas. Therefore urbanization control has become a major issue. Among the social, economical and ecological factors that are taken into account in decision-making, environmental issues now have a greater impact. To address these issues, researchers are faced with new problems among which are tool disparity, knowledge sharing and enhancement (both for data and methods). What data usually have in common is a geographic reference. We propose a common localized semantics for these tools as well as a workflow to allow data integration. We will also try to show to what extent our infrastructure and tools will be an asset to integrate knowledge production methods in order to combine research works altogether. We are especially seeking the integration of multi-disciplinary research works to provide urban management authorities with new indicators. Beyond the strict field set of practices, themes and disciplins, we aim to set up and deploy a common semantic and the corresponding framework. This common and shared basis will provide all researchers the ability to produce complex indicators using knowledge of several different disciplines. The Spatial Data Infrastructure is a way to define best practices and guidelines for process integration and product improvement. It provides an opportunity to avoid or eliminate all the barriers through integrated models that transcend disciplines.

5. GDMS: An abstraction layer to enhance Spatial Data Infrastructures usability Bocher, Erwan, Leduc, Thomas, Moreau, Guillaume, and Cortès, Fernando González In Agile 2008 2008 [Abs]

   The practical exploitation of SDI (Spatial Data Infrastructures) raises number of issues as far as it grows. Among them is the heterogeneity of data sources and thus the difficulty for GIS users not to depend on the data source format and of course to learn different systems. This a major flaw with respect to reuse and data sharing. The purpose of our work is to propose a new semantic layer derived from the SQL language that is independent of the underlying data source. This layer, called GDMS (Generic Data source Management System) can first be seen as an abstraction layer between data sources and the SDI tools. We will also show how this layer extends both SQL and spatial semantics and improves the exploitation of the SDI, by providing feedback both in terms of work and data reuse. A simple example mixing heterogeneous data sources will be presented.

6. Wind turbines landscapes: using virtual reality for the assessment of multisensory perception in motion Jallouli, Jihen, Moreau, Guillaume, and Querrec, Ronan In ACM Virtual Reality Software and Technology (poster) 2008 [doi]
7. Free versus constrained motion for assessing wind turbines’ impacts on landscape in virtual environments Jallouli, Jihen, Moreau, Guillaume, and Salerne, Davy In International Conference on Articificial Reality and Telexistence (poster) 2008 [Abs]

   Wind turbines (WT) are socially controversial because of their visual and acoustic impacts on landscape. The studies’ limits remain on one hand, the technical and objective point of view for subjective impacts; and on the other hand the separate study of visual and acoustic aspects when landscape is multisensory. Virtual reality (VR) is here proposed - thanks to immersion and interaction potentialities - as an immersive multisensory and dynamic approach in order to assess WT impacts. For that, a comparison between a real park and the same virtual one is needed to evaluate VR for landscape impacts’ restitution. The parks are evaluated using an immersive path-based method (perception in motion): the real walking is simulated in a first experiment by a Wiimote. As results show the limits of this device, a second experiment using a very low-cost instrumented bike has been setup.

8. Study of stereoscopic shape perception for virtual design Leroy, Laure, Fuchs, Philippe, Paljic, Alexis, and Moreau, Guillaume In International Conference on Artificial Reality and Telexistence 2008
9. Sensitivity of spatial indicators for urban terrain characterization Long, Nathalie, Bocher, Erwan, Leduc, Thomas, and Moreau, Guillaume In IEEE International Geoscience and Remote Sensing Symposium 2008
10. Patrimoine et enjeux actuels Tahrani, Souha, and Moreau, Guillaume 2008
11. Integration of Immersive Walking to Analyze Urban Daylighting Ambiences Tahrani, Souha, and Moreau, Guillaume Journal of Urban Design 2008 [Abs] [doi]

    The urban environment is deÞned as the interaction between the cityÕs morphological characteristics and its physical behaviour based on human interpretation. Contemporary psychology emphasizes the relation between perception and action and conÞrms that perception can be enhanced by the receptorÕs motion. Basing this study on these principles, it is assumed that virtual reality techniques bring both immersion and interaction to static computer generated images and they can be used to study sunlight effects as well as daylight ambience. This paper shows the methodology of Ôsunlight effectsÕ analysis of both real and virtual worlds and builds a framework for a comparison.

12. AR representation system for 3D GIS based on camera pose estimation using distribution of intersections Uchiyama, Hideaki, Saito, Hideo, Nivesse, Vivien, Servières, Myriam, and Moreau, Guillaume In International Conference on Artificial Reality and Telexistence 2008
13. AR representation system for 3D GIS based on camera pose estimation using distribution of intersections Uchiyama, Hideaki, Saito, Hideo, Nivesse, Vivien, Servières, Myriam, and Moreau, Guillaume In 3èmes journées de l’Association Française de Réalité Virtuelle, Bordeaux, 30-31 octobre 2008 2008
14. AR Mapping of GIS Information by Pattern-based Tracking with Particle Filter Uematsu, Yuko, Saito, Hideo, Servières, Myriam, and Moreau, Guillaume In International Conference on Artificial Reality and Telexistence 2008
15. An ontology-based model for representing evolution of both data and semantic in GIS Zaki, Chamseddine, Servières, Myriam, and Moreau, Guillaume In GI Days 2008 [pdf]

2007

1. 3D urban GIS: methods and tools for modeling, simulation and visualization of urban data Moreau, Guillaume 2007
2. 3D urban GIS: methods and tools for modeling, simulation and visualization of urban data Moreau, Guillaume 2007
3. Virtual Reality for analyzing urban daylighting ambiances and wind turbins environmental impact Moreau, Guillaume 2007
4. Amélioration des images stéréoscopiques Leroy, Laure, Fuchs, Philippe, and Moreau, Guillaume In 2èmes journées de l’Association Française de Réalité Virtuelle 2007
5. Analyzing urban daylighting ambiences by walking in a virtual city Tahrani, Souha, and Moreau, Guillaume In Proc. IEEE Virtual Reality Conf. VR ’07 2007 [doi]

2006

1. Automatic 3D Roof Reconstruction using Digital Cadastral Map, Architectural Knowledge and an Aerial Image Bertan, Emre, Gökmen, Muhittin, and Moreau, Guillaume In IEEE International Geoscience and Remote Sensing Symposium (IGARSS’06) 2006
2. Le Traité de la Réalité Virtuelle Fuchs, Philippe, Moreau, Guillaume, and Tisseau, Jacques 2006
3. La réalité virtuelle comme outil d’étude sensible du paysage : le cas des éoliennes Jallouli, Jihen, and Moreau, Guillaume In 1ères journées de l’Association Française de Réalité Virtuelle 2006
4. Détection entièrement automatique de points de fuite dans des scènes architecturales urbaines Kalantari, Mahzad, Guédon, Jean-Pierre, Jung, Franck, and Moreau, Guillaume In CORESA 2006 [Abs] [pdf]

   L’imagerie de la Ville doit être compréhensible facilement à partir d’acquisition d’images sans autre appareillage afin de fournir les éléments propre à chaque bâtiment. Pour cela, il est présenté une nouvelle méthode de détection de points de fuite complètement automatique, robuste et de complexité réduite vis à vis des algorithmes classiques. La méthode proposée tient en deux étapes : une détection de segments par un algorithme de Canny-Deriche modifié suivi d’une caractérisation de chacun des segments par leur appartenance à un cercle spécifique de l’espace original en utilisant un résultat de la géométrie projective. La bonne performance en termes de robustesse se double donc d’une réduction de complexité puisque l’ensemble du processus est réalisé en 2D sans aucune aide externe.

5. Le Traité de la de la Réalité Virtuelle Moreau, Guillaume 2006
6. Le Traité de la Réalité Virtuelle Moreau, Guillaume 2006
7. Introduction à la réalité virtuelle Moreau, Guillaume 2006
8. Workshop on compared practices of design: mechanical design versus architecture, urban and landscape design Moreau, Guillaume, Lucet, Geneviève, and Gironimo, Giuseppe Di 2006
9. Analyzing urban daylighting ambiences by walking in a virtual city Tahrani, Souha, Moreau, Guillaume, and Woloszyn, Philippe In 1ères journées de l’Association Française de Réalité Virtuelle 2006

2005

1. Réalité virtuelle et interaction Moreau, Guillaume 2005 [pdf]
2. Dense Stereo Correspondence using quarters of wavelet transform Régis, Sébastien, Doncescu, Andrei, Moreau, Guillaume, and Fuchs, Philippe International Journal of Pattern Recognition and Artificial Intelligence 2005 [doi]
3. Towards a Virtual Reality Tool for Lighting Communication and Analysis in Urban Environments Tahrani, Souha, Jallouli, Jihen, Moreau, Guillaume, and Woloszyn, Philippe In CAADS Future 2005 2005 [Abs] [doi]

   The objective of this paper is to evaluate the use of virtual reality as a potential decision-making tool to cognitively evaluate urban daylighting ambiences. This paper evaluates the solar effects visual perception in a real urban path in comparison to a virtual urban path in order to extract the characteristics of these effects and use them to figure out the necessary conditions for generating a physical and sensitive phenomena simulation. The comparison is based on questionnaires and interviews with participants on their judgements on sunlight during their walk through the chosen path. Our results highlight the relation between perception and the context of the urban environment , and prove that -in spite of its limits- virtual reality is able to simulate a large part of real solar effects.

4. Assessing the use of Virtual Reality in Daylighting ambiences Design: A case study Tahrani, Souha, Moreau, Guillaume, and Woloszyn, Philippe In Virtual Concept 2005 2005
5. A comparative study in using Virtual Environments for Urban daylight analysis Tahrani, Souha, Moreau, Guillaume, and Woloszyn, Philippe In Augmented heritage : new era for Architectural Design, Civil Engineering and Urban Planning. 10th EuropIA International Conference on the application of Artificial Intelligence, robotics and image processing to architecture, civil engineering & urban planning 2005 [Abs]

   This paper discusses the use of Virtual environments (VEs) in cognitive evaluation of daylighting ambiences. We will introduce Virtual Reality as a new tool for urban planning development. This paper evaluates the degree of solar effects representation in digital models as well as the role of immersion in environmental evaluation. We attempt to compare the real world and virtual representations through solar effects visual perception. We will describe the process of 3D modelling in three levels: static, semi-dynamic and dynamic. Pedestrians? visual perception is evaluated by studying participants? judgments of outdoor urban daylighting during their observations/walk in real and virtual urban paths. Results show that solar effects representations depend on the experimental conditions, the visualization method as well as the introduction of motion to our experiment. This directed our work towards improving the degree of immersion and interaction by using free movement in the virtual world to evaluate urban daylight.

6. Motion impact on daylighting ambiance evaluation in virtual world Tahrani, Souha, Moreau, Guillaume, and Woloszyn, Philippe In Computer in Urban Planning and Urban Management, CUPUM 2005 [Abs]

   The aim of this study is to assess the use of Virtual Reality technologies (VR) in cognitive evaluation of daylighting ambiences and more generally in a context of introducing VR as a new methodology for urban planning development. The urban environment is defined by the interaction between the city’s morphological characteristics and its physical behavior based on human interpretation. Contemporary psychology emphasizes the relation between perception and action and confirms that perception can be enhanced by the receptor?s motion. In this order, psycho-physical interaction creates a complex urban space that might be fully understood by over-layering the perceived information we gather while walking and moving. In the architectural and urban field, several studies analyze the urban space by using visual dynamic perception. These studies prove that walking can be a tool for reading and evaluating public space. But they however ignore the physical impact on that evaluation, and especially the impact of light on visual perception; whereas in the VR field, there are very few studies which compare perception in the real world versus perception in the virtual world. They mainly show the essential role of movement in obtaining a better perception. This study is a continuation of our work on evaluating urban daylighting by using VR, where we attempted to evaluate the solar effects on visual perception in a real and virtual urban path (Tahrani et al. 2005). The results of that study showed that visual perception largely depends on the user?s movement in space. Our objective in this study is to improve our methodology by using free movement in the virtual world to evaluate urban daylight. However, because of the limited size of the immersive room, we have to limit the user?s motion. We are, instead, implementing the concept of a less free movement by using the ?guided visits? navigation strategy (Azpiazu et al. 2004) which should enhance visual perception while respecting the constraints of the VR simulation. Finally, we evaluate pedestrians? visual perception by studying people?s personal classification of outdoor urban daylighting during their walk in real and virtual urban paths. Three urban study tools are used: solar effects, VR technology as well as movement.

7. Le Traité de la Réalité Virtuelle 2005 [pdf]

2004

1. La réalité virtuelle pour l’entreprise Moreau, Guillaume 2004
2. Three-dimensional reconstruction and texturation of museographic objects using multiple images and stereoscopic depth map fusion Aubourg, Julian, Moreau, Guillaume, and Fuchs, Philippe In Electronic Imaging Three Dimensional Image Capture and Applications VI 2004 [doi]
3. La réalité virtuelle dans l’entreprise Moreau, Guillaume In Tutoriel Virtual Reality International Conference (VRIC) 2004
4. Applications of Virtual Reality in the manufacturing industry: from design review to ergonomic studies Moreau, Guillaume, Fuchs, Philippe, and Stergiopoulos, Panagiotis Mécanique et Industries 2004
5. Développement d’un SIG 3D dédié au diagnostic des potentialités environnementales des bâtiments Musy, Marjorie, Ramos, Fabien, Siret, Daniel, Moreau, Guillaume, and Marenne, Christian In XXIIe Rencontres Universitaires de Génie Civil, Ville et Génie Civil 2004
6. Un outil de diagnostic des potentialiés environnementales des enveloppes dans le cadre d’une Opération Programmée d’Amélioration énergétique et Thermique du bâtiment (OPATB) Ramos, Fabien, Rouleau-Tiraoui, L., Musy, Marjorie, Marenne, Christian, Groleau, Dominique, Moreau, Guillaume, and Siret, Daniel 2004
7. Un outil de diagnostic des potentialiés environnementales des enveloppes dans le cadre d’une Opération Programmée d’Amélioration énergétique et Thermique du bâtiment (OPATB) - Rapport Final Siret, Daniel, Musy, Marjorie, Marenne, Christian, Groleau, Dominique, Moreau, Guillaume, Ramos, Fabien, and Rouleau-Tiraoui, L. 2004
8. Un SIG 3D pour l’étude des potentialités environnementales des enveloppes dans le cadre d’une opération de réhabilitation Siret, Daniel, Ramos, Fabien, Moreau, Guillaume, and Marenne, Christian In e-Sim 2004 2004

2003

1. Accurate 3D reconstruction of museographic objects using multiple images Aubourg, Julian, Moreau, Guillaume, and Fuchs, Philippe In Virtual Reality International Conference 2003
2. Visual immersion for design tutorial Fuchs, Philippe, and Moreau, Guillaume In Virtual Concept 2003
3. Psychophysique et technique de la vision stéréoscopique Fuchs, Philippe, and Moreau, Guillaume 2003
4. Enhancement of stereoscopic comfort by fast control of frequency content with wavelet transform Lemmer, Nicolas, Moreau, Guillaume, and Fuchs, Philippe In Stereoscopic Displays and Virtual Reality Systems X 2003 [doi]
5. Interaction in virtual environments Moreau, Guillaume In Virtual Concept 2003
6. A framework for the haptic rendering of the human hand Stergiopoulos, Panagiotis, Moreau, Guillaume, Ammi, Mehdi, and Fuchs, Philippe In Virtual Reality HAPTICS 2003 2003 [doi]
7. Le Traité de la réalité virtuelle 2003 [pdf]

2002

1. Research activities at the Robotics Lab Moreau, Guillaume, and Nashashibi, Fawzi 2002
2. Virtual reality and simulation vs video games Moreau, Guillaume 2002
3. Génération assistée de numérisation et de texturation d’objets muséographiques Aubourg, Julian, Moreau, Guillaume, and Fuchs, Philippe 2002
4. Capteur de dérive de véhicule par vision Boucheny, Christian, Moreau, Guillaume, and Fuchs, Philippe 2002
5. Dossier Réalité Virtuelle Chauvineau, Eric, Moreau, Guillaume, and Aubel, Amaury A3IEMag (journal des anciens de l’ENSIIE) 2002
6. Human factors and ergonomic studies for the car manufacturing industry Khoudja, Mohamed Benali, Moreau, Guillaume, Fuchs, Philippe, and Stergiopoulos, Panagiotis In ICEE 2002, International Conference on Engineering Education 2002
7. Video games versus Virtual Reality and Simulation Moreau, Guillaume 2002
8. Stereoscopic Displays for Virtual Reality in the car manufacturing industry: application to design review and ergonomic studies Moreau, Guillaume, and Fuchs, Philippe In Proceedings of SPIE "Stereoscopic Displays and Virtual Reality Systems IX" 2002 [doi]
9. Dense stereo matching method using a quarter of wavelet transform Moreau, Guillaume, Fuchs, Philippe, Doncescu, Andrei, and Régis, Sébastien In Proceedings of the IEEE International Conference on Image Processing (ICIP’02) 2002
10. Dense stereo matching method using a quarter of wavelet transform Moreau, Guillaume, Fuchs, Philippe, Doncescu, Andrei, and Régis, Sébastien 2002
11. Virtual Reality: CAD and beyond Moreau, Guillaume, Fuchs, Philippe, and Stergiopoulos, Panagiotis In Virtual Concept 2002 2002
12. Introducing Virtual Reality for ergonomic studies in the car manufacturing industry Moreau, Guillaume, Fuchs, Philippe, Stergiopoulos, Panagiotis, and Khoudja, Mohamed Benali In ITEC 2002 2002
13. Fast and accurate collision detection for haptic interaction with solid models and virtual prototypes Stergiopoulos, Panagiotis, Moreau, Guillaume, Lourdeaux, Domitile, and Fuchs, Philippe In VRIC 2002

2001

1. La réalité virtuelle : concepts et techniques Fuchs, Philippe, and Moreau, Guillaume 2001
2. Approche méthodologique de la réalité virtuelle pour la CAO Fuchs, Philippe, and Moreau, Guillaume In MICAD 2001
3. Etat de l’art sur les études d’ergonomie avec retour d’effort Fuchs, Philippe, and Moreau, Guillaume 2001
4. Le Traité de la Réalité Virtuelle Fuchs, Philippe, Moreau, Guillaume, and Papin, Jean-Paul 2001
5. Techniques de modélisation 3D à partir d’images photographiques Moreau, Guillaume 2001
6. Virtual reality in the design process: from design review to ergonomic studies Moreau, Guillaume, and Fuchs, Philippe In ESS’2001 2001
7. IMAVE : outil de réalité virtuelle pour la revue de projet Moreau, Guillaume, and Fuchs, Philippe 2001

2000

1. Mise au point d’un outil de réalite virtuelle en vue d’études de visibilité Moreau, Guillaume, and Fuchs, Philippe 2000

1999

1. The Kernel of a Scenario Language for Animation and Simulation Donikian, Stéphane, Devillers, Frédéric, and Moreau, Guillaume In Eurographics Workshop for Computer Animation and Simulation 1999 [doi]

1998

1. Multimodal driving Simulation in Realistic Urban Environments Donikian, Stéphane, Moreau, Guillaume, and Thomas, Gwenola 1998 [doi]
2. Vers le réalisme de la simulation de conduite en environnement urbain Donikian, Stéphane, Moreau, Guillaume, and Thomas, Gwenola In 6èmes journées du Groupe de travail Réalité Virtuelle 1998
3. Multimodal Driving Simulation in Realistic Urban Environments Donikian, Stéphane, Moreau, Guillaume, and Thomas, Gwenola In EURISCON’98 1998
4. Modélisation du comportement pour la simulation interactive : application au trafic routier multimodal Moreau, Guillaume 1998
5. From Psychological and Real-Time Interaction Requirements to Behavioural Simulation Moreau, Guillaume, and Donikian, Stéphane In Eurographics Workshop on Computer Animation and Simulation 1998 [doi]
6. Modélisation du comportement : de la psychologie comportementale à la simulation du trafic routier Moreau, Guillaume, and Donikian, Stéphane In Groupe de travail Animation-Simulation-Systèmes Dynamiques, PRC ALP 1998

1997

1. Fast simulation models for an effective aircraft training Cozot, Rémi, and Moreau, Guillaume In Simtect’97 Advancing Simulation Technology 1997
2. Two 3D recovering methods for robot control Moreau, Guillaume, Mallem, Malik, Chavand, Florent, and N’zi, Edie Camille In SYROCO’97, 5th Symposium on Robot Control 1997