Tracking Method in Consideration of Existence of Similar Object around Target Object

Abstract Tracking methods based on the particle filter uses frequently the appearance information of the target object to calculate the likelihood. The method using it often fails in tracking when the target object intersects with other objects with similar appearances. We propose a new approach for tracking objects with similar patterns in a video sequence taken by a moving camera. The proposed method based on the particle filter is robust to the intersection with other objects. Two state transition functions are defined for robust tracking. The method changes the function depending on the situation. In addition, the likelihood is calculated by using four factors which are the information of the color, the velocity, the distance between the objects and the values calculated by the probability background model. The method detects objects which are similar to the target object and which exist around the target object. This prevents the method from tracking other object mistakenly. Results are demonstrated by experiments using real video sequences.