发明申请
US20070160143A1 Motion vector compression method, video encoder, and video decoder using the method
审中-公开
运动矢量压缩方法，视频编码器和视频解码器采用该方法
- 专利标题： Motion vector compression method, video encoder, and video decoder using the method
- 专利标题（中）： 运动矢量压缩方法，视频编码器和视频解码器采用该方法
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申请号： US11646264申请日： 2006-12-28
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公开(公告)号： US20070160143A1公开(公告)日： 2007-07-12
- 发明人: Kyo-hyuk Lee
- 申请人： Kyo-hyuk Lee
- 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： KR10-2006-0042628 20060511
- 主分类号： H04N11/04
- IPC分类号： H04N11/04 ; H04N11/02
摘要：
Provided are a method and apparatus for increasing the compression efficiency of a motion vector by efficiently predicting a motion vector of a frame that is located in a current temporal level of multiple temporal levels using a motion vector of a frame that is located in a next temporal level. The method includes selecting a second frame that exists in a low temporal level of a first frame and is nearest to the first frame, where the first frame exists in a current temporal level of the multiple temporal levels; generating a prediction motion vector for the first frame from a motion vector of the second frame; and subtracting the generated prediction motion vector from the motion vector of the first frame.
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