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US 2012/0236948 A1Published application
Filtering method for removing block artifacts and/or ringing noise and apparatus therefor
AssigneeSamsung Electronics Co., Ltd.
InventorsJeong-hoon PARK, Yong-je KIM, Yung-lyul LEE
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Abstract
Provided are a filtering method and apparatus for removing blocking artifacts and ringing noise. The filtering method includes transforming video data on a block-by-block basis, and detecting the presence of an edge region in the video data by checking the distribution of values obtained by the transformation. Accordingly, it is possible to completely remove blocking artifacts and/or ringing noise by more effectively detecting the presence of an edge region in video data.
Claims3
A filtering apparatus for removing blocking artifacts, comprising:
- a filter information producing unit which creates filter information based on quantized transform values obtained by transforming and quantizing video data based on a block-by-block basis and determines a strength of filtering for a current block from among a plurality of strengths of filtering based on information on the current block and at least one neighboring block of the current block;
- and
- a deblocking filter which deblocking filters the video data to remove at least one of artifact and noise from the video data, based on the determined strength of filtering,
- wherein the filtering information producing unit and the deblocking filter are located in a feedback path.
1 more element
Dependencies are inferred from the claim text.