Source Coding. Jean Walrand EECS. Outline. Compression Losless: Huffman Lempel-Ziv Audio: Examples Differential ADPCM SUBBAND CELP Video: Discrete Cosine Transform Motion Compensation. Compression. Goal:. Reduce the number of bits to encode source. Approaches:.
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Note: The Shannon encoding requires fewer bits, but requires encoding large blocks of symbols.
Both codes assume that the distribution is known.Huffman Encoding(continued)