发明授权
- 专利标题： Methods and apparatus for reducing vector quantization error through patch shifting
- 专利标题（中）： 减少矢量量化误差的方法和装置
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申请号： US13576848申请日： 2011-02-01
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公开(公告)号： US09420291B2公开(公告)日： 2016-08-16
- 发明人: Dong-Qing Zhang , Joan Llach , Sitaram Bhagavathy
- 申请人： Dong-Qing Zhang , Joan Llach , Sitaram Bhagavathy
- 申请人地址： FR Issy-les Moulineaux
- 专利权人： THOMSON LICENSING
- 当前专利权人： THOMSON LICENSING
- 当前专利权人地址： FR Issy-les Moulineaux
- 代理商 Brian J. Dorini; Ronald J. Kolczynski
- 国际申请： PCT/US2011/000186 WO 20110201
- 国际公布： WO2011/097013 WO 20110811
- 主分类号： H04N7/12
- IPC分类号： H04N7/12 ; H04N19/105 ; G06T1/00 ; H04N19/139 ; H04N19/593 ; H04N19/14 ; H04N19/94 ; H04N19/59
摘要：
Methods and apparatus are provided for reducing vector quantization error through patch shifting. A method generates, from an input video sequence, one of more high resolution replacement patches, the one or more high resolution replacement patches for replacing one or more low resolution patches during a reconstruction of the input video sequence. This generating step generates the one or more high resolution replacement patches using data corresponding to a patch spatial shifting process, the patch spatial shifting process for reducing jittery artifacts caused by a motion-induced vector quantization error in the one or more high resolution replacement patches, the data for at least deriving a patch size of the one or more high resolution replacement patches such that the one or more high resolution replacement patches are generated to have the patch size greater than a patch size of the one or more low resolution patches in order to be suitable for use in the patch spatial shifting process.