发明授权
- 专利标题: Video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media which store the programs
- 专利标题(中): 视频编码方法和解码方法,其设备,程序和存储程序的存储介质
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申请号: US12526896申请日: 2008-02-20
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公开(公告)号: US08472522B2公开(公告)日: 2013-06-25
- 发明人: Shohei Matsuo , Seishi Takamura , Kazuto Kamikura , Yoshiyuki Yashima
- 申请人: Shohei Matsuo , Seishi Takamura , Kazuto Kamikura , Yoshiyuki Yashima
- 申请人地址: JP Tokyo
- 专利权人: Nippon Telegraph and Telephone Corporation
- 当前专利权人: Nippon Telegraph and Telephone Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP2007-043190 20070223
- 国际申请: PCT/JP2008/052859 WO 20080220
- 国际公布: WO2008/102805 WO 20080828
- 主分类号: H04N7/12
- IPC分类号: H04N7/12 ; H04N11/02 ; H04N11/04
摘要:
A video encoding method includes setting candidates for reference pixels to pixels within a predetermined distance range measured from an encoding target block; generating a predicted signal by sequentially selecting reference pixels used for the intra prediction of the encoding target block from among the reference pixel candidates while changing a distance condition from the encoding target block, and by generating the predicted signal based on the reference pixels for each distance condition; computing an encoding cost required for subjecting the encoding target block to intra prediction encoding using each generated predicted signal; finally determining reference pixels used for the intra prediction of the encoding target block based on each computed encoding cost; and encoding information which indicates the position of the determined reference pixels.
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