Method and system for high order conditional entropy coding

Details Method and system for high order conditional entropy coding Method and system for high order conditional entropy coding

1993-03-15

1994-03-29

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

341 79, 341107, 348384, H03M 730

Patent

active

052988961

ABSTRACT:
Method and system for high order conditional entropy coding utilizing an incremental-tree-extension technique to design a conditional tree for the coding. For complexity reduction, code table reduction and non-uniform quantization of conditioning symbols or pixels is provided. A pattern matching technique is provided for fast conditioning state extraction, and a multistage pipelined structure is provided to handle the case of a large number of conditioning pixels. Using the complexity reduction techniques and the hardware structures, it is possible to implement practical high order conditional entropy codecs using current low-cost VLSI (Very Large Scale Integration) technology.

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