Excavating
Patent
1995-10-26
1998-03-03
Baker, Stephen M.
Excavating
348616, H04L 100
Patent
active
057243697
ABSTRACT:
The present invention provides a method (100, 200) and a device (300, 400, 600) for containing and concealing errors which occur in a transmitted video bitstream. Utilizing a plurality of predetermined scanning patterns, particular macroblocks are chosen per frame to have their intensity information encoded and transmitted. This approach provides an efficient method to limit the degradation to the visual quality of a video sequence decoded from a bitstream corrupted by an extended error burst. Concealment of areas within a video sequence that are affected by short error bursts and/or random errors is achieved by estimating the corresponding lost macroblock information from the remaining uncorrupted macroblocks. That is, for each lost macroblock a prediction of the intensity information is generated through the use of a motion vector from a neighboring uncorrupted macroblock.
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Banham Mark R.
Brailean James C.
Levine Stephen N.
O'Connell Kevin J.
Baker Stephen M.
Motorola Inc.
Stockley Darleen J.
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