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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ATTORNEY / AGENT: (SPONSORED)

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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)

Patent OwnerAddressTotal Patents
TEXAS INSTRUMENTS INCORPORATEDDALLAS, TX16927

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koshiba, Osamu Tsukuba, JP 18 399
Osamoto, Akira Inashiki, JP 25 252

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ENTROPIC COMMUNICATIONS, LLC (1)
* 2007/0071,095 De-blocking and de-ringing systems and methods 45 2005
 
GODO KAISHA IP BRIDGE 1 (1)
* 2005/0141,619 Block distortion detection method, block distortion detection apparatus, block distortion removal method, and block distortion removal apparatus 3 2005
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
LATTICE SEMICONDUCTOR CORPORATION (6)
8559746 System, method, and apparatus for smoothing of edges in images to remove irregularities 3 2008
* 2010/0054,622 SYSTEM, METHOD, AND APPARATUS FOR SMOOTHING OF EDGES IN IMAGES TO REMOVE IRREGULARITIES 10 2008
* 8452117 Block noise detection and filtering 2 2010
* 2010/0202,262 BLOCK NOISE DETECTION AND FILTERING 23 2010
8891897 Block noise detection and filtering 1 2013
9305337 System, method, and apparatus for smoothing of edges in images to remove irregularities 1 2013
 
PIXELWORKS, INC. (1)
* 9338455 Adaptive compression artifacts reduction method 0 2013
* Cited By Examiner

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