Television – Bandwidth reduction system – Data rate reduction
Patent
1995-06-07
1998-04-07
Tung, Bryan S.
Television
Bandwidth reduction system
Data rate reduction
3488451, H04N 732
Patent
active
057370222
ABSTRACT:
A motion picture image transmission apparatus constructing a motion picture image transmission system for coding and decoding a motion picture signal in the block unit includes an output section for detecting an error of received coded data and outputting a detection signal, an identifying section for identifying a non-decodable block based on the detection signal, a prediction section for subjecting values of pixels near the non-decodable block to motion compensation prediction according to the respective motion vectors and motion compensation methods of a plurality of decodable blocks near the block, a calculating section for calculating motion compensation prediction error values of the results of prediction, a selecting section for selecting a motion vector applied to the non-decodable block from the plurality of motion vectors or the like based on the error value, and a correcting section for correcting a decodable block by motion compensation by use of the selected motion vector or the like.
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Ueno Hideyuki
Yamaguchi Noboru
Kabushiki Kaisha Toshiba
Tung Bryan S.
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