| 摘要 |
Disclosed is an apparatus, method, and computer program product for an image compression/decompression. The method for compressing a data structure having a first plurality of sets of image elements with one or more predetermined relationships among the image elements and among the sets, and includes encoding a first set of the plurality of image elements using a variable-length encoding process; and encoding a second set of the plurality of image elements using a modification to the variable length encoding process that decreases a symbol composition size of the variable length encoding process responsive to the one or more predetermined relationships among the image elements and the sets. The computer program product includes instructions executable by a processing unit, and those instructions perform the compression/decompression as described herein. The system is a compression/decompression apparatus for dynamically determining a probability of symbols used in a variable length encoding based upon previously encoded elements of the data structure.
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