Error Containment in the ICER Wavelet Image Compressor Used on MER
ICER data compression for MER includes an error-containment scheme to limit the effects of data loss during transmission. To achieve error containment, ICER automatically partitions the image data into a user-specified number of segments. Each segment is compressed independently of the others so that the loss of data from one segment does not affect the ability to reconstruct another segment. To ensure that the segments can be decompressed independently of each other, each compressed segment begins with a header containing information such as the segment index, image dimensions, and ICER parameters. Because each segment is compressed independently, ICER maintains separate context modeler and entropy coder data for each segment. When organizing compressed data into packets for transmission, multiple packets may be used for a single compressed segment, but no packet should contain data from more than one segment.
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