- 专利标题: IMAGE CODING METHOD AND APPARATUS USING SPATIAL PREDICTIVE CODING OF CHROMINANCE AND IMAGE DECODING METHOD AND APPARATUS
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申请号: US16259300申请日: 2019-01-28
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公开(公告)号: US20190158851A1公开(公告)日: 2019-05-23
- 发明人: Woo-shik KIM , Chang-yeong KIM , Yang-seock SEO
- 申请人: SAMSUNG ELECTRONICS CO., LTD.
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2002-0059468 20020930; KR10-2003-0055887 20030812
- 主分类号: H04N19/159
- IPC分类号: H04N19/159 ; H04N19/44 ; H04N19/186 ; H04N19/14 ; H04N19/11 ; H04N19/61 ; H04N19/176 ; H04N19/593 ; G06T9/00 ; H04N19/105 ; H04N19/122
摘要:
A coding method including dividing pixels of a chrominance component of an input image into blocks having a predetermined size; selecting one among a direct current prediction method, a vertical prediction method, a horizontal prediction method, and a hybrid prediction method according to a user's input; generating a prediction value of each pixel in a current block to be predictively coded, using at least one pixel value among pixel values in an upper reference block adjacent to the current block and in a side reference block adjacent to the current block, according to the selected prediction method; generating a differential value between the prediction value and a corresponding real pixel value in the current block; and coding the differential value and information on the selected prediction method using a predetermined coding method.