Motion picture coding apparatus

Details Motion picture coding apparatus Motion picture coding apparatus

1995-01-19

1997-10-14

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348420, 348699, H04N 732

Patent

active

056777353

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 102, 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 35, 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 104 to form a predictive signal.

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patent: 5410307 (1995-04-01), Hekstra et al.
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patent: 5418570 (1995-05-01), Ueno et al.
patent: 5436665 (1995-07-01), Ueno et al.

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