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Compressed sensing based compression of SAR raw data

Abstract : Due to their noise-like features, SAR images are difficult to acquire with compressed sensing techniques. However, some parts of the images, typically associated to man-made structures, are compressible and we investigate two techniques exploiting that information to allow a compressive acquisition of the whole image. These techniques result in a significant enhancement of the image quality compared to classical compressed sensing. Moreover, compared to classical sampling and quantisation of the SAR raw data, they allow a significant reduction of bitrate with a limited increase of the distortion. However, their efficiency depends strongly on the presence of compressible parts in the image.
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Submitted on : Friday, March 20, 2009 - 12:09:30 PM
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  • HAL Id : inria-00369560, version 1



Gabriel Rilling, Mike Davies, Bernard Mulgrew. Compressed sensing based compression of SAR raw data. SPARS'09 - Signal Processing with Adaptive Sparse Structured Representations, Inria Rennes - Bretagne Atlantique, Apr 2009, Saint Malo, France. ⟨inria-00369560⟩



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