goodbaby0318 发表于 2016-6-27 23:30:15

基于CamShift的目标跟踪算法

基于CamShift的目标跟踪算法
张宏志, 张金换, 岳卉, 黄世霖
(清华大学汽车安全与节能国家重点实验室,北京100084)
摘要:CarnShift是一种应用颜色信息的跟踪算法,在跟踪过程中,CamShift利用目标的颜色直方图模型得到每帧图像的颜色投影图,并根据上一帧跟踪的结果自适应调整搜索窗口的位置和大小,从而得到当前图像中目标的尺寸和中心位置。在CamShift算法基础上对搜索窗口进行简单运动预测,并增加二次搜索方法,提高跟踪的稳定性。实验结果表明,在图像背景复杂且目标不规则运动的情形下,仍能有效地跟踪到目标。
关键词:目标跟踪:CamShift;颜色直方图
中图法分类号:TP391.4 文献标识码:A 文章编号:1000.7024(2006)11-2012.03

0bject tracking algorithm based on CamShift
ZHANG Hong-zhi, ZHANG Jin—huan,YUE Hui,HUANG Shi.1in
(State Key Lab ofAutomotive Safety and Energy,Tsinghua University,Beijing 100084,China)
Abstract:CamShift is a color-based tracking algorithm.In the process of object tracking,CamShift operates on a back-projection image produced from object histogram model.Computed information is used previously to adjust current search window size and location,then the location and size ofthe color object are found.Simple motion prediction and twice searching methods to improve tracking performance are devised.Finally the experimental results indicate that color object is efficiently tracked even with complex background and irregular motion by using this algorithm.
Key words:object tracking;CarnShiR;color histogram



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