- 专利标题： Picture coding method, picture decoding method, picture coding apparatus, picture decoding apparatus, and program thereof
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申请号： US12607777申请日： 2009-10-28
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公开(公告)号： US08401074B2公开(公告)日： 2013-03-19
- 发明人: Tao Chen , Jiuhuai Lu , Yoshiichiro Kashiwagi , Shinya Kadono , Chong Soon Lim
- 申请人： Tao Chen , Jiuhuai Lu , Yoshiichiro Kashiwagi , Shinya Kadono , Chong Soon Lim
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 主分类号： H04N7/12
- IPC分类号： H04N7/12 ; H04N11/02 ; H04N11/04 ; H04B1/66
摘要：
The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier, which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.
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