Search results for " Image processing"
showing 10 items of 2323 documents
Automatic spatial and temporal organization of long range video sequences from low level motion features
2014
International audience; In this paper, we address the analysis of activities from long range video sequences. We present a method to automatically extract spatial and temporal structure from a video sequence from low level motion features. The scene layout is first extracted, with a set of regions that have homogeneous activities called Motion Patterns. These regions are then analyzed and the recurrent temporal motifs are extracted for each Motion Patterns. Preliminary results show that our method can accurately extract important temporal motifs from video surveillance sequences.
Spatial resolution improvement of MeRIS Images by Fusion with Thematic Mapper Images
2001
International audience; no abstract
Re-evaluation of the extent of Caulerpa taxifolia development in the northern Mediterranean using airborne spectrographic sensing
2003
International audience; no abstract
EDA, approche non linéaire de débruitage des signaux cardiaques
2013
National audience
Satellite survey of seasonal trophic status and occasional anoxic crises ?Malaigues? in the Thau lagoon using MeRIS images
2011
International audience; The Thau lagoon, located in southern France, suffers episodically from anoxic crises locally known as'malaigue'. Such crises mostly occur under warm conditions, low winds leading to a strongeutrophication of the lagoon. The development of a sulphur bacterium sometimes gives locally to thewaters a 'milky turquoise' appearance and leads to shellfish mortality. One of the indicators of theeutrophication status of the lagoon can be surveyed by the chlorophyll product provided by remotesensing images such as Medium Resolution Imaging Spectrometer (MERIS). In this paper wecompare chl2 (or algal2) estimations provided by MERIS level 2 products and the groundmeasurements of …
Débruitage des signaux cardiaques par l'approche EDA
2014
International audience
Simulation of future Geostationnary Ocean Color Images
2012
International audience; no abstract
Comparison of metrics for the classification of soils under variable geometrical conditions using hyperspectral data
2008
International audience; no abstract
Fusion d images pour la simulation d images satellitaires en mode hyperbande
1997
National audience; no abstract
Design and Characterization of Automated Color Sensors System
2014
International audience; The paper presents a color sensor system that can process light reflected from a surface and produce a digital output representing the color of the surface. The end-user interface circuit requires only a 3-bit pseudo flash analog-to-digital converter (ADC) in place of the conventional/typical design comprising ADC, digital signal processor and memory. For scalability and compactness, the ADC was designed such that only two comparators were required regardless of the number of color/wavelength to be identified. The complete system design has been implemented in hardware (bread board) and fully characterized. The ADC achieved less than 0.1 LSB for both INL and DNL. The…