Method of hydrid digital coding distinguishing motion pictures from still pictures
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United States of America Patent
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-
Aug 25, 1992
Grant Date -
N/A
app pub date -
Feb 20, 1991
filing date -
Mar 2, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Still and moving picture components of a motion video transmission are coded by using the same algorithm. The system provides a posteriori recognition of still pictures on memorization of the quantization step used to code groups of pixels of a still picture which belong to a certain hierarchical level (e.g. the macroblock level), and allows convergence of the quantization step towards a minimum predetermined value.
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