发明授权
US08270490B2 Motion vector detection apparatus, motion vector detection method, image encoding apparatus, image encoding method, and computer program
有权
运动矢量检测装置,运动矢量检测方法,图像编码装置,图像编码方法以及计算机程序
- 专利标题: Motion vector detection apparatus, motion vector detection method, image encoding apparatus, image encoding method, and computer program
- 专利标题(中): 运动矢量检测装置,运动矢量检测方法,图像编码装置,图像编码方法以及计算机程序
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申请号: US11772630申请日: 2007-07-02
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公开(公告)号: US08270490B2公开(公告)日: 2012-09-18
- 发明人: Daisuke Sakamoto , Yushi Kaneko
- 申请人: Daisuke Sakamoto , Yushi Kaneko
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Carter, DeLuca, Farrell & Schmidt LLP
- 优先权: JP2006-186972 20060706; JP2006-269016 20060929
- 主分类号: H04N7/12
- IPC分类号: H04N7/12
摘要:
An apparatus detects a motion vector using image data to be encoded, and a plurality of reference image data. The apparatus conducts a motion vector search for first reference image data using a large block obtained by dividing the image data to be encoded, and divides the large block into a smaller block size at the position of a smallest matching error. The apparatus determines a block size used in a motion vector search for another reference data based on matching errors in the small blocks.
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