Matthieu Perreira Da Silva
University of La Rochelle
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Featured researches published by Matthieu Perreira Da Silva.
european workshop on visual information processing | 2011
Matthieu Perreira Da Silva; Vincent Courboulay; Pascal Estraillier
Building a generic and highly capable vision system is still an open research problem. Actually, real-world vision systems need to face the challenge of dimensionality and ambiguity of data. To tackle this problem we introduced, in [1], a dynamic computational model of visual attention. This latter selects the most salient scene information while being able to adapt its behavior to the needs of a generic vision system. In this article, we focus on the objective validation of the plausibility of this original model. To check this property we compare (through three classical measures) the results obtained by several algorithms to an eye-tracking ground truth. Additionally, we study the influence of the model parameters on plausibility.
international conference on computer vision systems | 2008
Matthieu Perreira Da Silva; Vincent Courboulay; Armelle Prigent; Pascal Estraillier
This paper presents a real time face tracking and head pose estimation system which is included in an attention aware game framework. This fast tracking system enables the detection of the players attentional state using a simple attention model. This state is then used to adapt the game unfolding in order to enhance users experience (in the case of adventure game) and improve the game attentional attractiveness (in the case of pedagogical game).
Traitement Du Signal | 2011
Matthieu Perreira Da Silva; Vincent Courboulay
In the field of scene analysis for computer vision, a trade-off must be found between the quality of the results expected, and the amount of computer resources allocated for each task. Using an adaptive vision system provides a more flexible solution as its analysis strategy can be changed according to the information available concerning the execution context. We describe how to create and evaluate a visual attention system tailored for interacting with a computer vision system so that it adapts its processing according to the interest (or salience) of each element of the scene. We propose a new set of constraints named PAIRED to evaluate the adequacy of a model with respect to its different applications. We justify why dynamical systems provide good properties for simulating the dynamic competition between different kinds of information. We present different results that demonstrate that our results are fast and highly configurable and plausible. RESUME. Dans le domaine de lanalyse de scene en vision par ordinateur, un compromis doit etre trouve entre la qualite des resultats attendus et les ressources alloues pour effectuer les traitements. Une solution flexible consiste a utiliser un systeme de vision adaptatif capable de moduler sa strategie danalyse en fonction de linformation disponible et du contexte. Dans cet article, nous decrivons comment concevoir et evaluer un systeme dattention visuelle concu pour interagir avec un systeme de vision de facon a ce que ce dernier adapte ses traitements en fonction de linteret (de la saillance) de chaque element de la scene. Nous proposons egale- ment un nouvel ensemble de contrainte nommes PAIRED, permettant devaluer ladequation du modele a differentes applications. Nous justifions le choix des systemes dynamiques par leurs proprietes interessantes pour simuler la competition entre differentes sources dinformations. Nous presentons enfin une validation au travers de differentes metriques montrant que nos re- sultats sont rapides, hautement configurables et pertinents.
international conference on computer vision theory and applications | 2010
Matthieu Perreira Da Silva; Vincent Courboulay; Armelle Prigent; Pascal Estraillier
Archive | 2008
Abdallahi Ould Mohamed; Matthieu Perreira Da Silva; Vincent Courboulay
“Gaze-based Creativity, Interacting with Games and On-line Communities” INPROCEEDINGS in proceedings of COGAIN 2007 (Communication by Gaze Interaction IST FP6 European Project) | 2007
Matthieu Perreira Da Silva; Vincent Courboulay; Armelle Prigent
Psychnology Journal | 2009
Matthieu Perreira Da Silva; Vincent Courboulay; Armelle Prigent; Pascal Estraillier
XXIIe Colloque GRETSI - Traitement du Signal et des Image | 2009
Matthieu Perreira Da Silva; Vincent Courboulay; Armelle Prigent; Pascal Estraillier
MajecSTIC 2008 | 2008
Matthieu Perreira Da Silva; Vincent Courboulay; Armel Prigent; Pascal Estraillier
Archive | 2012
Matthieu Perreira Da Silva; Vincent Courboulay