Adaptive post-deringing filter on compressed images

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United States of America Patent

PATENT NO 8195002
APP PUB NO 20080310750A1
SERIAL NO

12139617

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Abstract

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An image filtering method, apparatus and system, wherein the method comprising the steps of detecting at least one portion of an edge, wherein the portion of the edge provides an indication that ringing artifact are probable; subjecting at least one portion of a pixel, related to the at least a portion of the edge, to a low pass filter to produce a filtered pixel; and blending the filtered pixel with a value relating to the filter prior to filtering to produce a filtered image.

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koshiba, Osamu Tsukuba, JP 21 530
Osamoto, Akira Inashiki, JP 43 616

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