Biased motion vector interpolation for reduced video artifacts

Details Biased motion vector interpolation for reduced video artifacts Biased motion vector interpolation for reduced video artifacts

2004-05-03

2011-12-06

Dang, Duy M (Department: 2624)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C382S236000

Reexamination Certificate

active

08073055

ABSTRACT:
In a video processing system where motion vectors are estimated for a subset of the blocks of data forming a video frame, and motion vectors are interpolated for the remainder of the blocks of the frame, a method includes determining, for at least at least one block of the current frame for which a motion vector is not estimated (204), whether a block to the left or right has an estimated zero motion vector (206), determining whether the at least one block had an estimated zero motion vector in a previous frame (206), and if both determinations are affirmative (208), providing a predetermined motion vector for the at least one block. The predetermined motion vector may be a zero motion vector (208).

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Office Action corresponding to the related Japanese Patent Application No. 2006-514252 mailed on Mar. 30, 2010. (English and Japanese translations).
Asbun, et al., “Real-Time Error Concealment In Digital Video Streams Using Digital Signal Processors,” IEEE Transactions on Consumer Electronics, IEEE Inc New York, US, vol. 47, No. 4, Nov. 2001, pp. 904-909.
Lam, et al., “Recovery of Lost or Erroneously Received Motion Vectors,” IEEE, vol. 4, Apr. 27, 1993, pp. 417-420.

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