Moving picture coding apparatus

Details Moving picture coding apparatus Moving picture coding apparatus

1996-06-28

1998-05-12

Boudreau, Leo

Image analysis

Image compression or coding

Interframe coding

382276, G06K 900

Patent

active

057518580

ABSTRACT:
Before dither-processed data are input to a compression processing section, dither-processed data of a previous frame and dither-processed data of a current frame are subjected to inter-frame differential processing in a differential processing section to form signal series having long white and black run length for the data input to the compression processing section, thereby enhancing the compressibility. A coding control section for performing coding processing beforehand sets a flag for determining whether each of the dither processing, the differential processing and the compression processing is performed. Each processing is performed on the basis of the flag information.

REFERENCES:
patent: 4785349 (1988-11-01), Keith et al.
patent: 5572235 (1996-11-01), Mical et al.
patent: 5621660 (1997-04-01), Chaddha et al.
patent: 5642171 (1997-06-01), Baumgartner et al.

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