| 摘要 |
A novel group of optimized variable word-length codes for intra coded pictures is disclosed. Hardware complexity and implementation cost is minimized by only optimizing the variable word-length codes for intra coded pictures for a small, but frequently occurring number of discrete cosine transform events. A table of variable word-length codes conforming to the Motion Pictures Expert Group Phase 1 ("MPEG-1") standard may be used for the remaining number of less frequently occurring events. In an illustrative example of the invention, the MPEG-1 variable word-length code table is also used to code non-intra pictures which advantageously allows for totally compatible operation with the MPEG-1 standard.
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