Invention Grant
- Patent Title: Motion vector computation for video sequences
- Patent Title (中): 视频序列的运动矢量计算
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Application No.: US11924463Application Date: 2007-10-25
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Publication No.: US08494054B2Publication Date: 2013-07-23
- Inventor: Hari N. Nair , Gordon Petrides
- Applicant: Hari N. Nair , Gordon Petrides
- Applicant Address: US CA Santa Clara
- Assignee: Genesis Microchip, Inc.
- Current Assignee: Genesis Microchip, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Beyer Law Group, LLP
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N19/006 ; H04B1/66

Abstract:
Methods and apparatus, including computer program products, implementing and using techniques for computing motion vectors in a digital video sequence are disclosed. A recursive hierarchical method is used to determine a motion vector by using multiple resolution levels of the image frames. A best motion vector is first determined for the lowest resolution level. The best motion vector is propagated to a higher resolution level, where some adjustments are made and a new best motion vector is determined. The new best motion vector is propagated to yet another higher resolution level, where more adjustments are made and another new best motion vector is determined. This process is repeated until the highest, original, resolution level has been reached and a best motion vector has been identified. The identified best motion vector at the original resolution level is used for performing motion compensation.
Public/Granted literature
- US20080043850A1 MOTION VECTOR COMPUTATION FOR VIDEO SEQUENCES Public/Granted day:2008-02-21
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