Influence of Headlight Level on Object Detection in Urban Traffic at Night

被引:2
|
作者
Erkan, Anil [1 ]
Hoffmann, David [1 ]
Singer, Timo [1 ]
Schikowski, Julia Maria [1 ]
Kunst, Korbinian [1 ]
Peier, Markus Alexander [1 ]
Khanh, Tran Quoc [1 ]
机构
[1] Tech Univ Darmstadt, Lab Adapt Lighting Syst & Visual Proc, Hochschulstr 4a, D-64289 Darmstadt, Germany
来源
APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 04期
关键词
urban traffic space; night-time driving; contrast perception; object detection; adaptive headlights; automotive lighting; street lighting systems; dimmable low beam; VISIBILITY LEVELS; LIGHTING-DESIGN; ROAD; SAFETY; LUMINANCE;
D O I
10.3390/app13042668
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The purpose of this work is to determine the influence of the low beam intensity of motor vehicle headlights on detection conditions in urban traffic. For this purpose, studies with fourteen subjects are conducted on three differently illuminated test roads, in which the low beam intensity is dimmed from off to fully on. At each dimming level, the subjects indicate whether or not they have detected the object, which is realized by a flat target and occurs at sixteen different positions in front of the vehicle. In addition, considerations of the contrast curve and the visibility level are made in order to determine the influence of switched off and fully switched on headlights. The results show that the negative contrast created by the existing street lighting creates detection conditions at least as good as full low beam intensity in almost all cases. The results further indicate that the influence of the low beam intensity increases with decreasing distance to the object and decreasing illumination levels. The results of this work show that an increase in low beam intensity initially leads to poorer detection conditions; thus, the option of reducing low beam intensity should be considered in urban traffic space.
引用
收藏
页数:21
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