Catherine Lambert-Nebout

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Why Image Compression in Space ? Images acquired on board spacecrafts (earth observation satellites, scientific probes...) represent in most cases very large volumes of data. It is then necessary to store these data on board (during non visilibility period) and to transmit them to ground. Due to the stringent limitations (in terms of mass, power and cost)(More)
Future high resolution instruments planned by CNES to succeed SPOT5 will lead to higher bit rates because of the increase in both resolution and number of bits per pixel, not compensated by the reduced swath. Data compression is then needed, with compression ratio goals higher than the 2.81 SPOT5 value obtained with a JPEG like algorithm. Compression ratio(More)
This paper considers the estimation scenario where an original image has undergone blurring, noise corruption and compression. The authors consider these unwanted effects jointly in the estimation formalism they propose. The contribution of the paper aims to adress the joint coding/decoding formulation, involving a priori assumptions on the solution and(More)
JPEG2000 is the most recent element in the large family of international standards developed by the Joint Photographic Expert Group (JPEG). The new JPEG2000 standard defines an image compression system that allows great flexibility not only for the compression of images but also for the access in the codestream. This paper presents briefly the different(More)
Digital imaging applications have to deal with increasingly large images and require more and more efficient compression techniques. The JPEG2000 standard has been recently issued in order to fulfill these new requirements. In this paper, we focus on the design of an image compression system based on reusing IP cores. We consider that traditional methods(More)
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