Image encoding apparatus having an intrapicture encoding mode an

Details Image encoding apparatus having an intrapicture encoding mode an Image encoding apparatus having an intrapicture encoding mode an

1997-07-15

1998-09-08

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348415, 348411, 348416, 348699, H04N 718

Patent

active

058052232

ABSTRACT:
An image encoding apparatus for encoding input image data using both of an intrapicture encoding mode and a motion compensation interpicture encoding mode has a refresh area setting section for setting a refresh area to allow an intraimage encoding to be forcibly performed in a picture plane so as to overlap between picture planes in a motion compensation range or more, a refresh control section for forcibly setting an encoding mode of the input image data to the intrapicture encoding mode in the refresh area set by the refresh area setting section, and a cancel section for cancelling a refresh when an image portion as a prediction image of an interpicture encoding has been intrapicture encoded even in the refresh area set by the refresh area setting section.

REFERENCES:
patent: 5164828 (1992-11-01), Tahara et al.
patent: 5260783 (1993-11-01), Dixit
patent: 5491509 (1996-02-01), Jeong et al.

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