发明授权
US08577159B2 Methods and devices for data compression with adaptive filtering in the transform domain
有权
用于在变换域中进行自适应滤波的数据压缩的方法和装置
- 专利标题： Methods and devices for data compression with adaptive filtering in the transform domain
- 专利标题（中）： 用于在变换域中进行自适应滤波的数据压缩的方法和装置
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申请号： US13232057申请日： 2011-09-14
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公开(公告)号： US08577159B2公开(公告)日： 2013-11-05
- 发明人: Xiang Yu , Dake He , En-hui Yang
- 申请人： Xiang Yu , Dake He , En-hui Yang
- 申请人地址： CA Waterloo, Ontario
- 专利权人： BlackBerry Limited
- 当前专利权人： BlackBerry Limited
- 当前专利权人地址： CA Waterloo, Ontario
- 代理机构： Rowand LLP
- 主分类号： H04N7/50
- IPC分类号： H04N7/50
摘要：
Methods and devices for encoding and decoding data using adaptive transform domain filtering are described. The encoder determines a set of transform domain filter coefficients to be applied to a transform domain prediction. The filtering may, in some cases, also apply to quantized transform domain coefficients. Rate-distortion optimization may be used to determine the optimal filter coefficients on a frame-based, coding-unit-basis, or other basis.
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