发明申请
US20150036746A1 MOVING PICTURE PREDICTION METHOD, MOVING PICTURE CODING METHOD AND APPARATUS, AND MOVING PICTURE DECODING METHOD AND APPARATUS
有权
移动图像预测方法，移动图像编码方法和装置，以及移动图像解码方法和装置
- 专利标题： MOVING PICTURE PREDICTION METHOD, MOVING PICTURE CODING METHOD AND APPARATUS, AND MOVING PICTURE DECODING METHOD AND APPARATUS
- 专利标题（中）： 移动图像预测方法，移动图像编码方法和装置，以及移动图像解码方法和装置
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申请号： US14508438申请日： 2014-10-07
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公开(公告)号： US20150036746A1公开(公告)日： 2015-02-05
- 发明人: Shinya KADONO , Chong Soon LIM , Teck Wee FOO , Sheng Mei SHEN
- 申请人： Panasonic Intellectual Property Corporation of America
- 优先权： JP2002-336294 20021120; JP2002-340391 20021125
- 主分类号： H04N19/503
- IPC分类号： H04N19/503 ; H04N19/119 ; H04N19/105 ; H04N19/577 ; H04N19/172
摘要：
An image decoding method is provided which includes a time information determination step of determining time information of a current picture, a first reference picture referred to by the current picture and a second reference picture referred to by the current picture; a scaling parameter calculation step of calculating a scaling parameter based on a time distance between the first reference picture and a second reference picture; a weighting coefficient determination step of determining two weighting coefficients based on the scaling parameter; a predictive pixel value generation step of generating a predictive pixel value of the current picture by scaling a pixel value of the first reference picture and a pixel value of the second reference picture using the two weighting coefficients determined in the weighting coefficient determination step; and a decoding step of decoding the current picture using the predictive pixel value.
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