Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (9): 94-99.doi: 10.3969/j.issn.1000-565X.2016.09.014

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Gradient-Based Suppression Method of Vehicle Light Interference in Tunnel Scenes

ZHAO Min SHI Yu-xin SUN Di-hua   

  1. School of Automation,Chongqing University,Chongqing 400044,China
  • Received:2015-12-31 Revised:2016-03-03 Online:2016-09-25 Published:2016-08-21
  • Contact: 赵敏(1980-)，女，副教授，主要从事智能交通系统、数字图像处理研究． E-mail:min992215@163.com
  • About author:赵敏(1980-)，女，副教授，主要从事智能交通系统、数字图像处理研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China(61573075)and the Natural Science Foundation of Chongqi(cstc2016jcyjA0565)

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Abstract: In tunnel scenes,the interference from vehicle light has a strong impact on the accurate extraction of vehicle targets.However,in the existing methods,there is no solution to this problem.Therefore,a suppression method of vehicle light interference is proposed on the basis of light gradient features,and according to the optical radiation and space structure features,a light intensity model of vehicle light illumination on roads and its vehicle light gradient function are constructed.Furthermore,by utilizing the invariance of gradient directions of vehicle light illumination on roads,the non-vehicle light illumination area is screened and a foreground mask is made.Fi- nally,the foreground mask is overlaid with the moving target foreground,thus suppressing the vehicle light Interfe- rence.Experimental results show that the proposed method can effectively suppress the vehicle light interference,and thus improve the extraction accuracy of vehicle targets.

Key words: light interference, illumination model, gradient feature, target extraction

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