关键词: 视频目标跟踪, 边缘方向图, 边缘方向分布, 粒子滤波

Abstract: This paper presents a new target tracking algorithm based on the particle filter and the edge orientation distribution to track video moving targets whose trajectory is nonlinear and in complicated backgrounds.The edge orientation image in target area is obtained by edge operator and the edge orientation distribution is established by Gaussian kernel.The edge orientation distribution is used as the characteristic to fuse with the particle filter to complete tracking for non-linear video moving target.The computer simulations show that the presented method can track the non-linear and non-Gaussian moving target in the complicated backgrounds effectively，and has a better performance compared with the method based on gray distribution.

Key words: video target tracking, edge orientation image, edge orientation distribution, particle filter