Abstract
We propose enhancements to the 2D lossless image compression method embodied in CALIC. The enhanced version of CALIC obtained better compression than obtained by CALIC on 37 of the 45 images in our benchmark suite. The two methods tied on 6 of the remaining 8 images. This benchmark suite includes medical, natural, and man-made images. We also propose a lossless compression method for 3D images. Our method employs motion estimation and obtained better compression than competing wavelet-based lossless compression methods on all 8 3D medical images in our benchmark suite.KeywordsMotion VectorMotion EstimationCompression MethodMotion ErrorCompute TomograThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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