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Error concealment for video coding based on a 3-D discrete wavelet transform (DWT) is considered. We assume that the video sequence has a sparse representation in a known basis different from the DWT, e.g., in a 2-D discrete cosine transform basis. Then, we formulate the concealment problem as $l_{1}$ -norm minimization and solve it utilizing an iterative thresholding algorithm. Comparing different...
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