Circuit and method for determining quantification coefficients i

Details Circuit and method for determining quantification coefficients i Circuit and method for determining quantification coefficients i

1995-05-24

1997-11-25

Olms, Douglas W.

Boots, shoes, and leggings

348405, 348422, 382251, 341200, H04N 726

Patent

active

056919182

ABSTRACT:
A circuit determines a quantification coefficient to be provided to a quantizer incorporated in a picture macroblock compression chain. A first counter counts the number of bits of each macroblock compressed by the compression chain. A first accumulator integrates the difference between each number provided by the first counter and a target, and provides a value corresponding to the quantification coefficient. A microprocessor provides the first accumulator with an initial value and a target at each N macroblocks. Parameters that characterize the current compression process are determined so that the microprocessor determines the target and the initial value to be provided to the first accumulator.

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French Search Report for French Patent Application No. 94/06725 filed May 27, 1994.

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