摘要
驾驶人直观地从道路透视图中获取线形信息,采用CatMull-Rom样条曲线表征驾驶人通过视觉获得的车道线形,确定控制点位,从中提取特征点表征车道控制点分布。通过对两侧车道线特征点位置分析,分别得到不同平曲率和纵坡条件下,车道线特征点横、纵向分布规律。研究成果可川于道路平纵线形与透视车道线之间的定量关系分析,进而也可为从驾驶人视觉角度评价线形设计质量提供参考。
Road alignment information can be obtained from road perspective intuitively.CatMull-Rom spline is used to represent visual lane alignment,then the control points can be determined and feature points can be extracted to represent the distribution of the road control points.Analyzed the position of feature points,the horizontal and vertical distributive regularity of feature points under different curvatures and longitudinal slopes are gained,respectively.The research result can be used to quantify the relationship between road horizontal-vertical alignment and perspective lane,and thus also provide a reference for the evaluation of lane design quality from the drivers' visual angle.
出处
《上海公路》
2014年第3期33-36,58,共5页
Shanghai Highways
基金
国家自然科学基金(51078270,51238008)
高等学校博士学科点专项科研基金(20120072110019)
