发明名称 |
Video encoding method and apparatus |
摘要 |
A video encoding method for subjecting an input video having a luminance and two color differences to prediction encoding, the video encoding method comprising: obtaining, for a to-be-encoded block of the input video, a given number of index informations each indicating a combination comprising a weighting factor for each of the luminance and the two color differences and an offset for each of the luminance and the two color differences; generating a prediction image for the to-be-encoded block by multiplying a given number of reference images by the weighting factor corresponding to each reference image and adding the offset; generating a prediction error signal for the to-be-encoded block by calculating an error between the input video and the prediction image; generating a quantized orthogonal transform coefficient for the to-be-encoded block by subjecting the prediction error signal to orthogonal transform and quantization; and encoding the quantized orthogonal transform, coefficient and the given number of informations. |
申请公布号 |
EP2355518(A1) |
申请公布日期 |
2011.08.10 |
申请号 |
EP20110161191 |
申请日期 |
2003.04.18 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
CHUJOH, TAKESHI;KOTO, SHINICHIRO;KIKUCHI, YOSHIHIRO |
分类号 |
H04N19/50;G06T9/00;H03M7/36;H04N11/04;H04N19/102;H04N19/105;H04N19/126;H04N19/134;H04N19/139;H04N19/176;H04N19/186;H04N19/189;H04N19/196;H04N19/423;H04N19/46;H04N19/463;H04N19/503;H04N19/51;H04N19/513;H04N19/517;H04N19/61;H04N19/625;H04N19/70;H04N19/85;H04N19/89;H04N19/895;H04N19/91 |
主分类号 |
H04N19/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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