发明名称 Barbell lifting for wavelet coding
摘要 A method for encoding motion-compensated video data includes generating, for a current frame, a high-pass wavelet coefficient based on a function of pixels in a temporally adjacent frame. The operations are repeated for multiple pixels in an array of pixels in the current frame to form an array of high-pass wavelet coefficients. A low-pass wavelet coefficient is generated based on a function of the high-pass wavelet coefficients. A system for coding video data includes a temporal wavelet decomposition module decomposing a pixel into a high-pass coefficient by performing a discrete wavelet transform on the pixel, a function of pixels in a previous frame, and/or a function of pixels in a subsequent frame. The system includes a motion estimation module generating motion vectors associated with the pixels in the previous frame and in the subsequent frame.
申请公布号 US7580461(B2) 申请公布日期 2009.08.25
申请号 US20040911836 申请日期 2004.08.04
申请人 MICROSOFT CORPORATION 发明人 LI SHIPENG;XIONG RUIQIN;LUO LIN;XU JIZHENG;WU FENG
分类号 H04N7/12;G06K9/36;G06K9/46;H04N7/26;H04N11/02;H04N11/04 主分类号 H04N7/12
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