Systems and methods for encoding redundant motion vectors in...

Details Systems and methods for encoding redundant motion vectors in... Systems and methods for encoding redundant motion vectors in...

2007-06-26

2007-06-26

An, Shawn S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240160, C375S240150, C375S240130, C375S240240, C348S699000, C348S700000, C382S238000, C382S236000, C382S243000

Reexamination Certificate

active

11086455

ABSTRACT:
The invention is related to methods and apparatus that encode redundant motion vectors for predictive-coded visual object planes (P-VOPs) to increase the robustness of transmitted video signals. One embodiment provides the redundant motion vectors in a user data video packet of an MPEG-4 compliant bitstream, which thereby allows the enhanced bitstream to remain compliant with MPEG-4 syntax and backwards compatible with MPEG-4 decoders. The enhanced bitstreams allow a video decoder to display a video with a better picture and relatively less error and error propagation when portions of the bitstream are disturbed or corrupted by interference, delays, and the like.

REFERENCES:
patent: 2005/0117648 (2005-06-01), Kim et al.

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