Video decoding device and method using a deblocking...

Details Video decoding device and method using a deblocking... Video decoding device and method using a deblocking...

2006-05-09

2006-05-09

Bali, Vikkram (Department: 2623)

Image analysis

Image enhancement or restoration

Edge or contour enhancement

C382S275000, C382S260000

Reexamination Certificate

active

07043092

ABSTRACT:
Quantization in video coding is a lossy treatment and has as its main result that blocking artefacts occur at the boundary of two blocks during the decoding process. The invention relates to a method of removing these blocking artefacts. It implements a filtering step in the decoding process applied to a segment of pixels phaddling the boundary, which segment has pixels at the ends (R3, L3) that agree with a chrominance similarity criterion (step1), i.e. filtering is applied to segments for which the pixels at the ends have similar colors.

REFERENCES:
patent: 5337088 (1994-08-01), Honjo
patent: 5796875 (1998-08-01), Read
patent: 6236764 (2001-05-01), Zhou
patent: 0859518 (1998-08-01), None
patent: 11205792 (1999-07-01), None
patent: WO9841025 (1998-09-01), None

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