Method and device for error control of a macroblock-based video

Details Method and device for error control of a macroblock-based video Method and device for error control of a macroblock-based video

1995-10-26

1998-07-07

Trammell, James P.

Excavating

371 48, H04N 1415

Patent

active

057781915

ABSTRACT:
The present invention provides a method (200) and device (300) for error control of a video compressed sequence in which error protection for both random and burst channel errors is provided. The error control syntax (100) applies a fixed length packet synchronization system to variable length coded compressed video data, which provides the capability to limit error propagation within the decoded video bit stream. The fixed length packet control information provides information to decode compressed video data in both forward and reverse directions to allow for the recovery of correctly decoded video data within a decoded frame after long bursts of channel errors while reducing the overhead for error control. The error control method also provides video error detection which may be used for error concealment.

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