Dynamic coding rate control in a block-based video coding system

Details Dynamic coding rate control in a block-based video coding system Dynamic coding rate control in a block-based video coding system

1996-02-26

1998-03-24

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348405, 348415, 348416, 348699, H04N 712

Patent

active

057318352

ABSTRACT:
A dynamic rate controller for a block-based video coding system. The rate controller is responsive to a scene cut flag generated by a scene cut detector. Once a scene cut flag is detected, the rate controller adjusts the bit budget for the frame following the scene cut before coding begins on that frame. Additionally, the rate controller establishes an optimal bit utilization profile that is compared to actual bit utilization, such that the bit allocation can be optimized as coding progresses.

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patent: 5440345 (1995-08-01), Shimoda
patent: 5491513 (1996-02-01), Wickstrom et al.
patent: 5576767 (1996-11-01), Lee et al.
patent: 5594504 (1997-01-01), Ebrahimi

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