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汤春明, 林祥清, 董燕成, 肖文娜, 林骏, 耿磊. 基于大气散射原理构建模型检测夜间交通视频多景深车灯[J]. 计算机辅助设计与图形学学报, 2017, 29(9): 1673-1680.
引用本文: 汤春明, 林祥清, 董燕成, 肖文娜, 林骏, 耿磊. 基于大气散射原理构建模型检测夜间交通视频多景深车灯[J]. 计算机辅助设计与图形学学报, 2017, 29(9): 1673-1680.
Tang Chunming, Lin Xiangqing, Dong Yancheng, Xiao Wenna, Lin Jun, Geng Lei. Detecting Multi-depth Headlight of Traffic Videos in Nighttime Based on Costructing Model according to Atmospheric Scattering Principle[J]. Journal of Computer-Aided Design & Computer Graphics, 2017, 29(9): 1673-1680.
Citation: Tang Chunming, Lin Xiangqing, Dong Yancheng, Xiao Wenna, Lin Jun, Geng Lei. Detecting Multi-depth Headlight of Traffic Videos in Nighttime Based on Costructing Model according to Atmospheric Scattering Principle[J]. Journal of Computer-Aided Design & Computer Graphics, 2017, 29(9): 1673-1680.

基于大气散射原理构建模型检测夜间交通视频多景深车灯

Detecting Multi-depth Headlight of Traffic Videos in Nighttime Based on Costructing Model according to Atmospheric Scattering Principle

  • 摘要: 针对在延长夜间交通视频检测距离的同时提高车灯检测率这一难点,提出基于大气散射原理复原车灯模型.首先分析夜间交通场景中的光源成分;然后基于大气散射原理构建了车灯复原模型,在重新定义环境光后,对模型中未知参量,如透射率、环境光以及场景景深等提出了新的估计方法,得到只含有车灯和少量路面反射光的复原结果;最后对复原结果按照景深距离分成远景、中景和近景3个区域,并按照车灯几何特征分别筛选,以提高车灯检测率.对9段视频共14 492帧进行实验的结果表明,在延长了检测距离的同时,与同类先进算法相比,该模型平均检测率提高31.39%,平均漏检率降低20.93%,平均误检率降低10.46%.

     

    Abstract: According to the difficulties to extend the detection distance of the traffic video at night and simultaneously to increase the headlights detection rate, we propose a novel headlight recovery model based on the atmospheric scattering principle. We firstly analyze all light sources in nighttime traffic scene, then build a headlights recovery model based on the atmospheric scattering principle. After redefining the ambient light, we present new methods to estimate the unknown parameters, such as transitivity, ambient light, scene depth, etc., the recovery results only including headlights and small numbers of reflection lights on the road surface. Finally, the video scene is partitioned to three parts: far, middle and near regions. The recovery results are filtered according to the headlight geometrical characteristic to increase the headlight detection rate. The results on 9 videos, totally 14 492 frames, show that we have extended the detection distance, and at the same time, the average detection rate is increased by 31.39%, the average missing and false detection rates are decreased by 20.93% and 10.46% respectively, compared with other advanced algorithms.

     

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