Intra-picture prediction coding method

Details Intra-picture prediction coding method Intra-picture prediction coding method

2008-05-06

2008-05-06

Dang, Duy M (Department: 2624)

Image analysis

Image compression or coding

Adaptive coding

C382S232000

Reexamination Certificate

active

10974682

ABSTRACT:
The intra-picture prediction coding apparatus150ais comprised of: an intra-picture prediction mode candidate determination unit156athat determines intra-picture prediction mode candidates by switching among intra-picture prediction mode candidate determination methods based on an amount of resources172; an intra-picture prediction execution unit151that sequentially performs intra-picture prediction on a current block using each of intra-picture prediction modes in the intra-picture prediction mode candidates and generates an intra-picture predictive image164; a prediction difference calculation unit152that generates a prediction difference image165based on the intra-picture prediction image164and the image presented by the current block; a coding efficiency evaluation unit153that calculates an evaluation value166based on the prediction difference image165; an intra-picture prediction mode determination unit154that determines the intra-picture prediction mode whose evaluation value166is the smallest among the intra-picture prediction mode candidates; and a coding unit155that codes a prediction difference image168as a result of the prediction using the determined intra-picture prediction mode as well as the intra-picture prediction mode information167.

REFERENCES:
patent: 5903676 (1999-05-01), Wu et al.
patent: 6069976 (2000-05-01), Kim
Draft ISO/IEC, 14496-10: 2002 (E), “Draft ITU-T Recommendation and Final Draft International Standard of Joint Video Specification”, May 27, 2003, pp. 97-102.

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