METHODS AND APPARATUS FOR AN ARTIFACT DETECTION SCHEME BASED ON IMAGE CONTENT

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United States of America Patent

APP PUB NO 20140254938A1
SERIAL NO

14359926

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Abstract

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Methods and apparatus for artifact detection are provided by the present principles that measure the level of artifacts, such as those caused by temporal concealment of errors due to packet loss, for conditional error concealment. The principles are based on an assumption that sharp edges of video are rarely aligned with macroblock boundaries so video discontinuities are checked throughout the video. The scheme solves the problem of error propagation when temporal concealment of artifacts is used and the high false alarm rates of prior methods. Artifact detection methods are provided for regions of an image, an entire image, or for a video sequence, with error concealment provided conditionally based on the artifact levels.

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Patent Owner(s)

Patent OwnerAddress
THOMSON LICENSING DTV1-5 RUE JEANNE D'ARC ISSY-LES-MOULINEAUX 92130

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Zhibo Beijing, CN 54 369
Gu, Xiaodong Beijing, CN 34 196
Liu, Debing Beijing, CN 17 175

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