发明授权
- 专利标题: Object tracker for visually tracking object motion
- 专利标题(中): 用于视觉跟踪对象运动的对象跟踪器
-
申请号: US11755870申请日: 2007-05-31
-
公开(公告)号: US07940957B2公开(公告)日: 2011-05-10
- 发明人: Shoichi Ikenoue , Takayuki Sakamoto , Hidehiko Morisada
- 申请人: Shoichi Ikenoue , Takayuki Sakamoto , Hidehiko Morisada
- 申请人地址: JP Tokyo
- 专利权人: Sony Computer Entertainment Inc.
- 当前专利权人: Sony Computer Entertainment Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Katten Muchin Rosenman LLP
- 优先权: JP2006-161687 20060609
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; H04N7/18 ; H04N5/225
摘要:
A tracking start-and-stop determining unit of a tracking processing unit determines whether to start or stop tracking based on a predetermined condition. During tracking, a sampling unit 29 creates or eliminates particles using a probability density distribution estimated for the previous image frame. A first to nth model tracking units transit the particles according to motion models respectively assigned, and observe the likelihood of a candidate curve corresponding to each particle with respect to an edge image generated by an image processing unit. A tracking integration unit determines a motion model which causes the highest likelihood, and estimates a probability density distribution using an observation likelihood based on the motion model.
公开/授权文献
- US20080063236A1 Object Tracker for Visually Tracking Object Motion 公开/授权日:2008-03-13