SciTePress - Affiliation Profile

University of Angers, France

Context (please use complete words only)

Field

Sort by

35 Papers

Virtual Interactive Tablet to Support Vocational Training in Immersive Environment

Topics: Interactive Systems for Education and Training; Virtual, Augmented and Mixed Reality; Interaction Devices and Immersive Displays

Authors: Pierre Gac ¹ , Paul Richard ² , Yann Papouin ³ , Sébastien George ⁴ and Émmanuelle Richard ²

Affiliations: ¹ Université d’Angers, LARIS-EA 7315, 49000, Angers, France, DEC Industrie, 3 rue du Champ du Verger, 72200, ALLONNES and France , ² Université d’Angers, LARIS-EA 7315, 49000, Angers and France , ³ DEC Industrie, 3 rue du Champ du Verger, 72200, ALLONNES and France , ⁴ Le Mans Université, LIUM-EA 4023, 72085, Le Mans, Cedex 9 and France

Digital Object Identifier: 10.5220/0007456201450152

Proceedings of HUCAPP 2019, ISBN: 978-989-758-354-4

Quick Abstract

This paper presents a tool designed to assist a virtual reality learner in a vocational training context. The benefits of VR are spreading outside the video-games and research field, leading the vocational education institutions to consider using this technology for training purposes. By simulating emblematic professional situations, teachers can train students in good conditions regarding safety, logistics and financial resources. In the French vocational training system, VR is just at its beginnings and the lack of experiments with this training context highlighted the need for new tools allowing teachers to use VR with their students. The work presented in this paper is part of a global project aiming to create, design and assess new VR tools and methodologies for this specific context. In order to guide, inform and assist the user, we are presenting a generic tool that can ease VR sessions by proposing embedded tools within easy reach of the immersed user, such as a camera, an inventory, a printer or stock management. This tool is a virtual tablet that can be grabbed by the immersed user allowing her/him to interact efficiently with the virtual environment.

A New 2D Interaction-based Method for the Behavioral Analysis of Instrumental Activities of Daily Living

Topics: Analysis Methods and Tools; User Performance Evaluation; Usability and User Experience

Authors: Eulalie Verhulst ¹ , Déborah Foloppe ¹ , Paul Richard ¹ , Frédéric Banville ² and Philippe Allain ¹

Affiliations: ¹ Université d’Angers, France , ² Université de Montréal, Canada

Digital Object Identifier: 10.5220/0006255901460151

Proceedings of HUCAPP 2017/VISIGRAPP, ISBN: 978-989-758-229-5

Quick Abstract

In neuropsychology, many computerized solutions have been proposed in order to assess patients’ functioning in activities of daily living, via realistic interactive simulation. In this context, most developed systems are based on simple devices, real time 2D interaction, and monoscopic 3D computer graphics environment. Behavioral analysis has drawn the interest of many domains, such as neuropsychology, ergonomics, web design, or virtual reality. However, advances on this topic remains fragmented in their respective areas. Thus, in computerized solutions applied to neuropsychology, the behavioral analysis does not take into account the data from interaction. The potential interest of computerized solutions is hence underexploited. In this paper, we propose a transdisciplinary solution, based on a finer analysis of 2D interaction data, such as stop duration. This method could reveal interesting aspects of users’ behaviors.

Using Constraint Solver for 3D Layout Assistance in Human-scale Virtual Environment

Topics: Evaluation Paradigms and Frameworks; User Performance Evaluation; 3D Interaction Techniques and Metaphores

Authors: Marouene Kefi ¹ , Paul Richard ¹ , Thuong Hoang ² , Takehiko Yamaguchi ³ and Vincent Barichard ¹

Affiliations: ¹ University of Angers, France , ² University of Melbourne, Australia , ³ Tokyo University of Sciences, Japan

Digital Object Identifier: 10.5220/0006140400270038

Proceedings of HUCAPP 2017/VISIGRAPP, ISBN: 978-989-758-229-5

Quick Abstract

This paper proposes a combination of virtual reality (VR) and constraint programming (CP) to develop an efficient system that will assist users when performing 3D layout tasks in a virtual environment. We conducted an experimental study to investigate the extent to which the solver’s assistance affects user performance in 3D-layout tasks. Volunteer participants were instructed to layout a generic 3D scene which was displayed on a large-scale rear-projected screen. Results showed that the solver provided significant assistance in both simple and complex tasks. The participants performed the layout tasks more accurately and in significantly less time when the constraint solver was used. Most of the subjects reported that the solver was useful in completing the layout tasks and they were generally satisfied by the proposed solution. However, it was observed that some subjects had difficulty in interacting with the solver, especially during the complex tasks.

Using Virtual Reality Techniques to Study Cognitive Processes in Car Driving Activity

Topics: Virtual, Augmented and Mixed Reality; Interaction Devices and Immersive Displays

Authors: Emmanuelle Ménétrier ¹ , Paul Richard ¹ , Vincent Boucher ² and Christophe Boujon ¹

Affiliations: ¹ Université d’Angers, France , ² Centre d’Etudes et d’Expertise sur les Risques, l’Environnement and la Mobilité et l’Aménagement, France

Digital Object Identifier: 10.5220/0006230901380145

Proceedings of HUCAPP 2017/VISIGRAPP, ISBN: 978-989-758-229-5

Quick Abstract

A central question in cognitive sciences is how behaviors adapted to the situations encountered are produced. This question can be addressed in different ways and often requires the researcher to choose between highly controlled and standardized laboratory situations (commonly referred to as artificial settings) and studies undertaken in natural settings which may be more realistic, but cannot be controlled as required by a rigorous scientific approach. Using car driving as an example, our study will show how virtual reality (VR) offers a compromise between these two alternatives. Indeed, VR can simulate controlled immersive environments that offer different levels of realism. Moreover, VR makes it possible to implement different devices. For instance, VR enables researchers to analyze oculomotor behavior, which is fundamental in the field of car driving and is considered an indicator of attentional deployment. The work presented in this paper is based on a car driving simulator currently under development and aimed at studying the cognitive processes involved in car driving such as attentional processes and anticipatory mechanisms.

Virtual Reality Techniques for 3D Data-Warehouse Exploration

Topics: User Performance Evaluation; Usability and User Experience; 3D Interaction Techniques and Metaphores

Authors: Hamza Hamdi , Eulalie Verhulst and Paul Richard

Affiliation: Université d'Angers, France

Digital Object Identifier: 10.5220/0006130400750083

Proceedings of HUCAPP 2017/VISIGRAPP, ISBN: 978-989-758-229-5

Quick Abstract

This paper focuses on the evaluation of virtual reality (VR) interaction techniques for exploration of data warehouse (DW). The experimental DW involves hierarchical levels and contains information about customers profiles and related purchase items. A user study has been carried out to compare two navigation and selection techniques. Sixteen volunteers were instructed to explore the DW and look for information using the interaction techniques, involving either a single WiimoteTM (monomanual) or both WiimoteTM and NunchuckTM (bimanual). Results indicated that the bimanual interaction technique is more efficient in terms of speed and error rate. Moreover, most of the participants preferred the bimanual interaction technique and found it more appropriate for the exploration task. We also observed that males were faster and made less errors than females for both interaction techniques.

3D Interaction Techniques for Virtual Shopping: Design and Preliminary Study

Topics: Virtual Reality Tools and Languages (X3D, VRML, Java3D, OpenGL, ...); Evaluation of Human Performance and Usability in Virtual Environments

Authors: Eulalie Verhulst ¹ , Paul Richard ¹ , Emmmanuelle Richard ¹ , Philippe Allain ¹ and Pierre Nolin ²

Affiliations: ¹ Université d'Angers, France , ² Université du Québec, Canada

Digital Object Identifier: 10.5220/0005725402690277

Proceedings of GRAPP 2016/VISIGRAPP, ISBN: 978-989-758-175-5

Quick Abstract

Virtual Reality is now recognized as a powerful tool for the assessment and rehabilitation of both motor and cognitive impairments. In this context, effective Virtual Environments (VEs) that simulate everyday tasks must be proposed. We have developed a virtual supermarket (VS) in which the user can explore and collect various items using a shopping cart. Four interaction techniques have been designed and compared in terms of usability, performance and workload with healthy volunteer participants. These techniques go beyond the desktop paradigm by offering a more immersive and intuitive way of interaction. Results showed that participants were more efficient in terms of performance (completion time and travelled distance) using the game-pad rather than using full body gestures. However, they had more fun performing the task under these conditions.

Related Ontology Subjects/Areas/Topics (4)

Computer Vision, Visualization and Computer Graphics		Interactive Environments		Virtual Reality Tools and Languages (X3D, VRML, Java3D, OpenGL, ...)
Evaluation of Human Performance and Usability in Virtual Environments

Virtual Reality System for Rehabilitation of Children with Cerebral Palsy: A Preliminary Study

Topics: Games for Education and Training; Evaluation of Human Performance and Usability in Virtual Environments

Authors: Pierre Michel ¹ , Paul Richard ¹ , Takehiko Yamaguchi ² , Adrien Verhulst ³ , Eulalie Verhulst ¹ and Mickaël Dinomais ¹

Affiliations: ¹ Université d'Angers, France , ² Tokyo University of Science, Japan , ³ Université de Nantes, France

Digital Object Identifier: 10.5220/0005720503040311

Proceedings of GRAPP 2016/VISIGRAPP, ISBN: 978-989-758-175-5

Quick Abstract

We present a non-immersive virtual reality (VR) system for the rehabilitation of children with Cerebral Palsy (CP). Our objective is to encourage and motivate children to improve their limb motor control while play- ing a game. Two tasks are available : (1) intercepting or (2) to catching / releasing moving objects using a Kinect sensor. These tasks are achieved via the control of a virtual character placed in a virtual island. A control-display ratio is used to virtually increase the child workspace allowing him/her to reach all the approaching objects. In addition, a dynamic difﬁculty adjustment (DDA) is used to keep a good motivation level. Furthermore, a virtual coach is provided to support and congratulate the children. Twenty healthy chil- dren participated in a preliminary experiment. The aim was (1) to collect control data concerning performance and workload, and (2) to investigate the effect of the virtual coach. Results show a good usability of the game and reveal a high ratio of acceptance and enjoyment from the children.

Related Ontology Subjects/Areas/Topics (4)

Computer Vision, Visualization and Computer Graphics		Games for Education and Training		Interactive Environments
Evaluation of Human Performance and Usability in Virtual Environments

Component-based Authoring Tool for Haptic Navigation

Topics: Advanced User Interfaces; Virtual Reality Tools and Languages (X3D, VRML, Java3D, OpenGL, ...)

Authors: Takehiko Yamaguchi ¹ , Kazuhiro Oshima ¹ , Yuto Hirano ¹ , Akiyo Makishima ¹ , Testsuya Harada ¹ and Paul Richard ²

Affiliations: ¹ Tokyo University of Science, Japan , ² Université d’Angers, France

Digital Object Identifier: 10.5220/0005357804860491

Proceedings of GRAPP 2015/VISIGRAPP, ISBN: 978-989-758-087-1

Quick Abstract

Nowadays, providing a uniform development environment for haptic applications is considered as one of the critical issues in haptic technologies. Thus, to date, we have developed a component-based haptic authoring framework using a component capability extension mechanisms supported by Unity3D. Our aim is to develop a newly revised haptic component to extend our previous framework. The proposed component enables a user to design haptic interface such as haptic navigation, as well as to help simulate/investigate the effect of the haptic interaction. In this paper, we present a prototype system and its capabilities.

Related Ontology Subjects/Areas/Topics (4)

Advanced User Interfaces		Interactive Environments		Virtual Reality Tools and Languages (X3D, VRML, Java3D, OpenGL, ...)
Computer Vision, Visualization and Computer Graphics

Emotion Recognition based on Heart Rate and Skin Conductance

Topics: Affective Computing; Processing of Multimodal Input; Computer Graphics and Visualization of Physiological Data

Authors: Mickael Ménard ¹ , Paul Richard ¹ , Hamza Hamdi ¹ , Bruno Daucé ¹ and Takehiko Yamaguchi ²

Affiliations: ¹ University of Angers, France , ² Tokyo University of Science, Japan

Digital Object Identifier: 10.5220/0005241100260032

Proceedings of PhyCS 2015, ISBN: 978-989-758-085-7

Quick Abstract

Information on a customer’s emotional states concerning a product or an advertisement is a very important aspect of marketing research. Most studies aimed at identifying emotions through speech or facial expressions. However, these two vary greatly with people’s talking habits, which cause the data lacking continuous availability. Furthermore, bio-signal data is also required in order to fully assess a user’s emotional state in some cases. We focused on recognising the six basic primary emotions proposed by Ekman using biofeedback sensors, which measure heart rate and skin conductance. Participants were shown a series of 12 video-based stimuli that have been validated by a subjective rating protocol. Experiment results showed that the collected signals allow us to identify user's emotional state with a good ratio. In addition, a partial correlation between objective and subjective data has been observed.

Related Ontology Subjects/Areas/Topics (7)

Affective Computing	Human-Computer Interaction	Physiological Computing Systems
Applications	Methodologies and Methods	Processing of Multimodal Input
Computer Graphics and Visualization of Physiological Data

VR based Collaborative Errorless Learning System using Humanoid Avatar for People with Alzheimer’s Disease

Topics: Augmented, Mixed and Virtual Environments; Collaborative Augmented, Mixed and Virtual Environments; Virtual Humans and Artificial Life; Games for Education and Training; Evaluation of Human Performance and Usability in Virtual Environments

Authors: Takehiko Yamaguchi ¹ , Yuta Yamagami ¹ , Toshihiko Sato ¹ , Hibiki Fujino ¹ , Tetsuya Harada ¹ , Debora Alexandora Foloppe ² , Paul Richard ³ and Philippe Allain ⁴

Affiliations: ¹ Tokyo University of Science, Japan , ² Université d’Angers, France , ³ University of Angers, France , ⁴ Université d’Angers and CHU d’Angers, France

Digital Object Identifier: 10.5220/0005313904620469

Proceedings of GRAPP 2015/VISIGRAPP, ISBN: 978-989-758-087-1

Quick Abstract

Everyday action impairment is one of the diagnostic criteria of Alzheimer’s disease and is associated with many serious consequences, including loss of functional autonomy and independence. It has been shown that the (re)learning of everyday activities is possible in Alzheimer’s disease by using errorless learning approaches. The purpose of this study is to propose a newly revised Virtual Kitchen system that allows training of everyday activities to integrate a new approach of errorless learning (EL) framework using collaborative learning with a virtual agent. In this paper, we describe a concept of the proposed framework, as well as explore user’s attention change to analyse eye tracking data during a training task in order to review the effectiveness of the proposed EL framework.

Related Ontology Subjects/Areas/Topics (6)

Augmented, Mixed and Virtual Environments		Evaluation of Human Performance and Usability in Virtual Environments		Interactive Environments
Computer Vision, Visualization and Computer Graphics		Games for Education and Training		Virtual Humans and Artificial Life

Context (please use complete words only)

Field

Sort by

Topic(s):

Title:
ISBN:
Year:
Acronym:
Subject:

Title:
Author:
Affiliation:
Subject:

Name:
Affiliation:
Country:
Conference:
Subject:

Name:
Country:
Subject:

Affiliation

Filter listed results, by