发明授权
- 专利标题: Kalman tracking of color objects
- 专利标题(中): 卡尔曼跟踪颜色对象
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申请号: US09318682申请日: 1999-05-25
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公开(公告)号: US06917692B1公开(公告)日: 2005-07-12
- 发明人: Anil M. Murching , Thumpudi Naveen , Radu S. Jasinschi , Ali Tabatabai
- 申请人: Anil M. Murching , Thumpudi Naveen , Radu S. Jasinschi , Ali Tabatabai
- 申请人地址: FR Boulogne-Billancourt
- 专利权人: Thomson Licensing S.A.
- 当前专利权人: Thomson Licensing S.A.
- 当前专利权人地址: FR Boulogne-Billancourt
- 代理商 Joseph S. Tripoli; Joseph J. Laks; Robert B. Levy
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06T7/20
摘要:
A semi-automatic method of tracking color objects in a video image sequence starts by separating the objects on the basis of color and identifying an object of interest to track. A Kalman predictive algotithm in used to predict the position of the centroid of the object of interest through successive frames. From the predicted position the actual centroid is measured and the position and velocity are smoothed using a Kalman filter. Error recovery is provided in the event the centroid falls outside the field of view or falls into an area of a different color, or in the event the tracking algorithm breaks down.
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