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《Opto-Electronic Engineering》 2010-01
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Camshift Object Tracking Algorithm Based on Inter-frame Difference and Motion Prediction

WU Da-peng1,CHENG Wei-ping2,YU Sheng-lin1 ( 1. College of Automation Engineering,Nanjing University of Auronautics and Astonautics,Nanjing 210016,China; 2. China Helicopter Research and Development Institute,Jingdezhen 333001,Hebei Province,China )  
To enhance Camshift algorithm on the adaptability of high-speed object,complex background and covering,an improved algorithm combining inter-frame difference and motion prediction is proposed. First,before calculating back-projection image,the color information is associated with the motion information gained from inter-frame difference to eliminate color noise and automatically initialize tracking. Second,in order to make the algorithm applicable with high-speed object,position of target is predicted and searching window is updated according to tracking state. Experimental results prove that the improved algorithm is robust to high-speed target,covering and color noises.
【CateGory Index】: TP391.41
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