Bienvenue sur le site du laboratoire des Equipes Traitement de l'Information et Système, unité de recherche mixte de l'Ecole nationale supérieure de l'électronique et de ses applications (ENSEA), de l'Université de Cergy-Pontoise (UCP) et du CNRS (UMR 8051).
ETIS est rattaché à l'Institut des sciences informatiques et leurs interactions (INS2I).
Actualités
Recrutement d'ATER à l'Université de Cergy-Pontoise
En savoir plus... Recrutement d'ATER à l'Université de Cergy-Pontoise
Recherche Multimédia par le Contenu dans les Bases réparties sur les Réseaux
En savoir plus... Recherche Multimédia par le Contenu dans les Bases réparties sur les Réseaux
Agenda
Récemment publié
OPPORTUNISTIC SECONDARY SPECTRUM SHARING PROTOCOLS FOR PRIMARY IMPLEMENTING AN IR TYPE HYBRID-ARQ PROTOCOL
Romain Tajan
In this paper, we propose, analyze and compare three different methods for opportunistic spectrum sharing access when the primary users implements an Incremental Redundancy (IR) type Hybrid Automatic ReQuest (H-ARQ) protocol. The first method consists in allowing the secondary user to communicate only during the first primary transmission round of the IR H-ARQ protocol. [...]
IRIM at TRECVID 2011: Semantic Indexing and Instance Search
Bertrand Delezoide
The IRIM group is a consortium of French teams work- ing on Multimedia Indexing and Retrieval. This paper describes its participation to the TRECVID 2011 se- mantic indexing and instance search tasks. For the semantic indexing task, our approach uses a six-stages processing pipelines for computing scores for the likeli- hood of a video shot to contain a target concept. [...]
Biologically inspired neural networks for spatio-temporal planning in robotic navigation tasks
Julien Hirel
In this paper we present a biologically-inspired model of spatio-temporal learning in the hippocampus and prefrontal cortex which can be used in tasks requiring the behavior of the robot to be constrained by sensory and temporal information. In this model chains of sensory events are learned and associated with motor actions. [...]
Characterizing compressibility with Lorenz curves
Claudio Weidmann
This paper revisits earlier work on rate distortion behavior of sparse sources, namely it highlights the fact that a graphical sparsity characterization proposed in \cite{Weidmann:00b} is a \emph{Lorenz curve}, a tool for summarizing income inequality that has been used by economists for over a century. [...]
Inversion of a new circular-arc Radon transform for Compton tomography
M.K. Nguyen
A new circular-arc Radon transform arising from the mathematical modeling of image formation in a new modality of Compton scattering tomography is introduced. We describe some of its properties and establish its analytic inverse formula. This result demonstrates the feasibility of image reconstruction from Compton scattered radiation in Compton scattering tomography. [...]