Journal of Xidian University ›› 2016, Vol. 43 ›› Issue (4): 191-196.doi: 10.3969/j.issn.1001-2400.2016.04.033

• Article • Previous Articles    

Method for relay tracked target handover using  the spectrum bag of words

ZHANG Xiaojun;LIU Zhijing;XUE Hongmin   

  1. (School of Computer Science and Technology, Xidian Univ., Xi'an  710071, China)
  • Received:2016-01-19 Online:2016-08-20 Published:2016-10-12

Abstract:

Aiming at the difficulty of the relay-tracked target handover across cameras, a method using the spectrum Bag Of Words(BOW) is proposed. Firstly, 2 or more target images from the first camera are divided into blocks. The Fourier features of the blocks are extracted and then clustered by Kmeans. The averaged vectors of the compact clusters are used as the normal words of the BOW, while an abnormal vector is used as the abnormal word. The targets from the first and second cameras are described in BOW words.The Euclidean distance between the BOW descriptions is used as the target similarity metrics. Experiments show that the proposed method has some definite improvement in target recognition and robustness compared with several common methods based on the texture.

Key words: multiple cameras, relay tracking, target handover, Fourier spectrum, spectrum bag of words