Hybrid global/local bit rate control
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United States of America Patent
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Nov 16, 1999
Grant Date -
N/A
app pub date -
Jan 8, 1998
filing date -
Jan 8, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A current picture partitioned into a plurality of partitions is received and encoded by determining a total target number of encoded bits for the current picture to avoid overflow or underflow of a video buffer verifier (VBV) maintained by an encoder. The encoder determines a local target number of encoded bits for each partition of the current picture, in accordance with the total target number. A plurality of partition encoders encode each partition, respectively, in accordance with the local target number for said each partition, wherein each partition encoder maintains a local VBV having a local VBV fullness, to monitor local underflow or overflow conditions.
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