Television – Bandwidth reduction system – Data rate reduction
Patent
1995-02-15
1997-08-05
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348415, 348416, 348420, 348421, H04N 1718
Patent
active
056547595
ABSTRACT:
Methods and apparatus directed to reducing blockiness resulting from encoding digital video data using, e.g., DCTs are disclosed. An encoder which encodes video signals into a digital video bitstream including information identifying blocky video and instructions for processing the blocky video is also disclosed. A plurality of methods of identifying blocky video in an encoded bitstream by analyzing the encoded bitstream are also disclosed. In addition, various methods of filtering both non-blocky and blocky video, without adversely affecting the non-blocky video, are described.
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Augenbraun Joseph E.
Boyce Jill MacDonald
Chin Tommy P.
Hitachi America Ltd.
Michaelson Peter L.
Rao Anand
Straub Michael P.
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