LOW-COMPLEXITY DEPTH MAP ENCODER WITH QUAD-TREE PARTITIONED COMPRESSED SENSING
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United States of America Patent
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Aug 17, 2015
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Aug 15, 2014
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Abstract
A variable block size compressed sensing (CS) method for high efficiency depth map coding. Quad-tree decomposition is performed on a depth image to differentiate irregular uniform and edge areas prior to CS acquisition. To exploit temporal correlation and enhance coding efficiency, the quad-tree based CS acquisition is further extended to inter-frame encoding, where block partitioning is performed independently on the I frame and each of the subsequent residual frames. At the decoder, pixel domain total-variation minimization is performed for high quality depth map reconstruction.
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