Motion picture coding apparatus

Details Motion picture coding apparatus Motion picture coding apparatus

1993-11-19

1995-07-25

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348413, 348402, 348425, H04N 750

Patent

active

054366658

ABSTRACT:
A motion picture coding apparatus for performing predictive coding on a high-resolution picture signal and coding a low-resolution picture signal obtained by converting the high-resolution picture signal. One field is thinned out from one frame of a picture by a field skip circuit, the other field is down-sampled by a down-sampling circuit 29, thereby forming a low-resolution picture. A low-resolution predictive signal, obtained by up-sampling the low-resolution picture by an up-sampling circuit, and a high-resolution predictive signal, which is produced from a high-resolution picture and corresponds to the thinned-out one field, are alternately combined by a predictor to form a predictive signal.

REFERENCES:
patent: 4864394 (1989-09-01), Gillard
patent: 5315326 (1994-05-01), Sugiyama

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