关键词: 智能汽车, 单目视觉, 数据回归, 测距

Abstract: On the basis of detailed analysis of existent vision-based distance detection algorithm，this paper presents a monocular vision distance detection algorithm based on data regeression modeling.Differing from the existent strategy of “first modeling then detection”，this paper creatively presents a strategy of “first detection then modeling”.Firstly，the method accurately calibrates a few distance samples，then applies data regression modeling to build the distance detection modeling.The method impliedly sloves the affections about imaging modeling，imaging system errors，lens distortion，etc.In the process of regression modeling，other than researches about these questions individually.In addition，the method is independent of the geometrical constraint of the lane，so the method not only can be applied to structed road such as freeway，but also to urban unstructed road.The experimental results show that the algorithm is effective，and satisfy the real-time and accurate requirements of distance detection.

Key words: intelligent vehicle, monocular vision, data regression, distance detection