Performance considerations for the application of the lossless browse and residual model
Abbott, Walter D., III
Kay, Robert T.
Pieper, Ron J.
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A hybrid lossless compression model employing both the (lossy) JPEG DCT algorithm and one of a selection of lossless image compression methods has been tested. The hybrid model decomposes the original image into a low-loss quick-look browse and a residual image. The lossless compression methods tested in the model are Huffman, arithmetic, LZW, lossless JPEG, and diagonal coding. For both the direct and the hybrid application of these lossless methods, the compression ratios (CR's) are calculated and compared on three test images. For each lossless method tested, the hybrid model had no more than a nominal loss in compression efficiency relative to the direct approach. In many cases, the hybrid model provided a significant compression gain. When used in the hybrid model, lossless JPEG outperformed the other lossless methods over a broad range of browse image qualities.
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Abbott, Walter D., III (Monterey, California. Naval Postgraduate School, 1993-12);In this thesis, a hybrid lossless compression model is tested which employs a combination of both a lossy compression method and one or more lossless image compression methods to produce an overall lossless image compression. ...
Wilcox, Jeffrey (Monterey, California: Naval Postgraduate School, 2013-09);This thesis aims to improve image throughput from satellite to Earth by using Artificial Vision to perform data compression before the downlink. Onboard Analysis for Selective Imagery Compression (OASIC) is a hybrid ...
Kay, Robert T. (Monterey, California. Naval Postgraduate School, 1993-06);In this report, commonly used lossless and lossy image compression algorithms are heuristically presented and then compared in terms of performance. The lossy algorithms, JPEG (Joint Photographic Experts Group) and Fractal ...