发明授权
US5436674A Method of detecting motion vector, apparatus therefor, and picture
signal processing system utilizing the apparatus
失效
检测运动矢量的方法，其装置和利用该装置的图像信号处理系统
- 专利标题： Method of detecting motion vector, apparatus therefor, and picture signal processing system utilizing the apparatus
- 专利标题（中）： 检测运动矢量的方法，其装置和利用该装置的图像信号处理系统
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申请号： US971922申请日： 1993-12-21
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公开(公告)号： US5436674A公开(公告)日： 1995-07-25
- 发明人: Hiroshi Hirabayashi , Yuji Nojiri , Yasuaki Kanatsugu , Shoichi Suzuki , Hajime Sonehara , Junji Kumada , Iwao Obata , Kenji Nakashima
- 申请人： Hiroshi Hirabayashi , Yuji Nojiri , Yasuaki Kanatsugu , Shoichi Suzuki , Hajime Sonehara , Junji Kumada , Iwao Obata , Kenji Nakashima
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Hoso Kyokai
- 当前专利权人： Nippon Hoso Kyokai
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-146624 19910523; JPX3-146625 19910523; JPX3-166254 19910612; JPX3-201170 19910717
- 主分类号： G06T7/00
- IPC分类号： G06T7/00 ; G06T7/20 ; H04N5/14 ; H04N7/26 ; H04N7/32
摘要：
An apparatus capable of detecting with improved accuracy a motion vector representing an object moved on a picture plane comprises a memory section for storing an input picture signal renewed for every predetermined time interval, a spatial filter section for applying a spatial band limitation to two signal portions of the renewed picture signal stored in the memory, which signal portions corresponding to the different time intervals, and a detecting section including at least one detecting stage for detecting the motion vector in accordance with the gradient method on the basis of the two picture signals and a minute value to be added to a gradient determined from one reference picture signal represented by one of the two picture signals.