WZD – A Very Low Complexity Wavelet Video Codec for an ASIC Macro
نویسندگان
چکیده
WZD (Wavelet Z-coDec) is a component or composite video codec engineered and optimized to greatly reduce the ASIC silicon implementation area in return for a modest degradation of the R-D (rate/distortion) tradeoff. It consists of wavelet transforms organized into a carefully designed pyramid, dyadic quantization, and a novel application of Zcoding and Huffman coding to entropy code the wavelet coefficients. The resulting design can be completely implemented, including RAM, in less than 10% of the silicon area of and MPEG2 encoder excluding RAM.
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