Television – Bandwidth reduction system – Data rate reduction
Patent
1995-06-06
1996-09-03
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348699, H04N 732
Patent
active
055528317
ABSTRACT:
A digital video signal decoding apparatus has a memory for storing motion vectors which have been decoded by a decoder, and a motion vector calculating circuit for calculating a presumed motion vector from the motion vectors stored in the memory, whereby, even if part of a bit stream has been lost and each of pixel blocks which have been lost accordingly cannot be decoded, each of the lost pixel blocks is filled in by a corresponding pixel block in a preceeding frame which has been motion-compensated through a motion compensation circuit by using the presumed motion vector, thereby preventing degradation of the picture quality at that pixel block portion.
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Machida Yutaka
Yukitake Takeshi
Chin Tommy P.
Lee Richard
Matsushita Electric - Industrial Co., Ltd.
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