Invention Grant
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
- Patent Title: Motion vector detection apparatus, motion vector detection method, image encoding apparatus, image encoding method, and computer program
- Patent Title (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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Application No.: US11772630Application Date: 2007-07-02
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Publication No.: US08270490B2Publication Date: 2012-09-18
- Inventor: Daisuke Sakamoto , Yushi Kaneko
- Applicant: Daisuke Sakamoto , Yushi Kaneko
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Carter, DeLuca, Farrell & Schmidt LLP
- Priority: JP2006-186972 20060706; JP2006-269016 20060929
- Main IPC: H04N7/12
- IPC: H04N7/12
Abstract:
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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