Deblocking filter

Details Deblocking filter Deblocking filter

2007-10-16

2007-10-16

Vo, Tung (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

11250187

ABSTRACT:
A method in video decoding for reducing blocking artifacts between a first and a second block in a block wise coded video picture by performing a test on pixel lines crossing a boundary and/or an extension of the boundary between the first and the second block and executing a de-blocking filter operation on boundary neighboring pixels if the test indicates artifacts. The method further includes performing the test on a subset of the pixel lines only, and if the test indicates artifacts, executing a de-blocking filter operation on the boundary neighboring pixels in each of the pixel lines crossing the boundary.

REFERENCES:
patent: 6360024 (2002-03-01), Tan et al.
patent: 6665346 (2003-12-01), Lee et al.
patent: 2003/0058944 (2003-03-01), MacInnis et al.
patent: 2004/0081368 (2004-04-01), Mathew et al.
patent: 2005/0013494 (2005-01-01), Srinivasan et al.
Wiegand, Thomas. “Draft ITU-T Recommendation and Final Draft International Standard of Joint Video Specification (ITU-T Rec. H.264 | ISO/IEC 14496-10 AVC)”. Chap 8 Sec 7. pp. 138-147.
“Variable Block Size Transform for H264/AVC,”IEEE Transaction on Circuits and Systems for Video Technology, 13(7), (2003).

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