Who are we?
ETIS is located in Cergy, 30kms NW from Paris.
ETIS research concerns four main domains:
- MIDI: Multimedia Indexing and Data Integration
- ICI: Information, Communications, Imagery
- ASTRE: Architectures, Systems, Technologies for embedded REconfigurables units
- NEURO: Neurocybernetics
Local polynomial space–time descriptors for action classification
In this paper we propose to tackle human actions indexing by introducing a new local motion de-scriptor based on a model of the optical flow. We pro-pose to apply a coding step to vector field before the modeling. We use two modeling, a spatial model and a temporal model. [...]
Optimisation conjointe de méthodes de linéarisation de l'émetteur pour des modulations multi-porteuses
Multi-carrier modulations appear as a well-tried technology for high-speed data transmission on potentially disrupted channels. OFDM (Orthogonal Frequency Division Multiplexing) has been chosen for that matter in several telecommunication standards (ADSL, Wi-Max, IEEE 802. [...]
Study of generalized Radon transforms and applications in Compton scattering tomography
Since the advent of the first ionizing radiation imaging devices initiated by Godfrey Newbold Hounsfield and Allan MacLeod Cormack, Nobel Prizes in 1979, the requirement for new non-invasive imaging techniques has grown. These techniques rely upon the properties of penetration in the matter of X and gamma radiation for detecting a hidden structure without destroying the illuminated environment. [...]