| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: it is difficult to perform tracking processing efficiently independently of the number of tracking objects or their sizes in a visual tracking system. <P>SOLUTION: Based on an existing probability distribution of a tracking object in a previous frame, contour candidate curves of a tracking object in the present frame are determined by using a particle filter. In order to match the candidate curves with a present frame contour image 90, search processing of a contour line in the most vicinity of the candidate curves is divided every knot 92 composing the candidate curve, so that a plurality of processing units carry out the divided processing in parallel. Image data of a searching area 94 of a processing object knot 92 are copied from a contour image 90 stored by an image memory unit 24 to local memories 60a to 60d of each processing unit. <P>COPYRIGHT: (C)2010,JPO&INPIT |
