Video coding device and decoding device

Details Video coding device and decoding device Video coding device and decoding device

1997-09-25

2000-11-07

Tadayon, B.

Image analysis

Image compression or coding

Interframe coding

382240, G06K 900

Patent

active

061447692

ABSTRACT:
A video coding and decoding device for encoding and decoding video signal by dividing the video signal by dividing the video signal into frequency bands in advance of coding, wherein the timing of refreshing respective frequency bands independently controlled, so as to realize sequential periodical refreshment of every frequency bands, and an increase in refresh-rate for lower-frequency bands. A refresh-control portion determines the frequency bands to be refreshed, and then sends a refresh-command to coding mode selecting portions. Upon receipt of the refresh command, the coding mode selecting portions transfer intraframe-prediction coded information and interframe-prediction coded information.

REFERENCES:
patent: 5394249 (1995-02-01), Shimoda et al.
patent: 5602589 (1997-02-01), Vishwanath et al.
patent: 5731840 (1998-03-01), Kikuchi et al.
patent: 5740283 (1998-04-01), Meeker
patent: 5912706 (1999-06-01), Kikuchi et al.

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