Video predictive decoding method and apparatus

Details Video predictive decoding method and apparatus Video predictive decoding method and apparatus

2004-09-15

2009-12-08

An, Shawn (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240250, C375S240260, C375S240200, C375S240120, C382S233000, C382S235000, C382S251000, C382S250000, C382S238000

Reexamination Certificate

active

07630436

ABSTRACT:
A video predictive decoding method and apparatus for predicting a current block of a picture. The method includes storing at least one previous product in a memory. The previous product corresponds to a block of a plurality of blocks of the picture. The previous product is the product of a quantized AC coefficient and a quantization scale of the block that the previous product corresponds to. The method further includes determining which block to use as a prediction block from the plurality of blocks, reading from the memory at least one previous product corresponding to the prediction block, and calculating at least one quantized AC coefficient of the current block using the at least one previous product read from the memory.

REFERENCES:
patent: 5650860 (1997-07-01), Uz
patent: 6385242 (2002-05-01), Chen

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