Abstract: Recent developments on the implementation of integer-to- integer transform provide a new basis for transform-based lossless coding. Although it shares many features with popular transform-based lossy coding, there are also a few discrepancies between them because of different coding rules. In this paper we discuss several important discrepancies, including the evaluation of decorrelating performance, the implementation of transform and the criteria of choosing transform. We target at a better understanding of applying linear transforms in lossless coding scenario. !5
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