05-compression-02-entropy coding.pptx - ICSY

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Entropy Coding } Entropy <strong>coding</strong> procedures rely on statistically independent information events to produce optimal results (maximum theoretical <strong>compression</strong>) } Remark A prefix code (or prefix-free code) is a code in which no codeword is a prefix to another codeword. This enables unique decodability with variable code length without any separator symbol Prof. Dr. Paul Müller, University of Kaiserslautern 2
The Braille Prof. Dr. Paul Müller, University of Kaiserslautern 3
Page 1: Entropy Coding } different probabil
Page 5 and 6: Morse Code Example: Letter statisti
Page 7 and 8: Huffman Coding } Idea: Use short bi
Page 9 and 10: Huffman Coding Symbol Count P2 205
Page 11 and 12: Huffman Coding Symbol Count Huffman
Page 13 and 14: Adaptive Huffman Coding } Problem -
Page 15 and 16: Adaptive Huffman Coding } Example n
Page 17 and 18: Adaptive Huffman Coding } A was inc
Page 19 and 20: Adaptive Huffman Coding } n+4-th Hu
Page 21 and 22: Huffman Coding Evaluation } Limitat
Page 23 and 24: Arithmetic Coding } arithmetic codi
Page 25 and 26: Arithmetic Coding } Example I - Fou
Page 27 and 28: Arithmetic Coding } Example I (cont
Page 29 and 30: Arithmetic Coding Example II (cont.
Page 31 and 32: Arithmetic Coding } Remarks - if th
Page 33 and 34: Lempel - Ziv (LZ77) } Algorithm for
Page 35 and 36: Lempel - Ziv (LZ77) } Remarks - the
Page 37 and 38: Lempel - Ziv - Welch (LZ78) } LZ78:

05-compression-02-entropy coding.pptx - ICSY

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