A New Model for Daytime Visibility Index Estimation Fused Average Sobel Gradient and Dark Channel Ratio

作者：Xiang, Wenshu^*; Xiao, Jianli; Wang, Chongjing; Liu, Yuncai

来源：3rd International Conference on Computer Science and Network Technology (ICCSNT), China,Shaanxi,Weinan,Dali, 2013-10-12 to 2013-10-13.

DOI：10.1109/ICCSNT.2013.6967074

• visibility index estimation
• average Sobel gradient
• dark channel prior
• fusion model

In this paper, a new fusion model for daytime visibility index estimation using traffic monitoring cameras is proposed, which does not depend on any preset targets or an accurate geometric calibration. In the proposed method, two features Average Sobel Gradient and Dark Channel Ratio are extracted from the input image to construct a visibility range estimation model, and the visibility index is computed based on it. A sunny detector and the gray-scale histogram duration verifications are adopted to improve the accuracy of the model. For evaluating the performance of the proposed method, some experiments have been performed. Experimental results show that the proposed method achieves higher accuracy than other two compared methods.

• 出版日期2013
• 单位上海交通大学