东南大学学报（英文版）2018，Vol.34Issue(1)：48-53,6.DOI:10.3969/j.issn.1003-7985.2018.01.008
基于Cardinal样条的数字地图道路建模方法
Efficient and reliable road modeling for digital maps based on cardinal spline
摘要
Abstract
In order to realize an optimal balance between the efficiency and reliability requirements of road models, a road modeling method for digital maps based on cardinal spline is studied. First, the cardinal spline is chosen to establish an initial road model, which is specified by a series of control points and tension parameters. Then, in view of the initial road model, a gradual optimization algorithm, which can determine the reasonable control points and optimal tension parameters according to the degree of the change of road curvature, is proposed to determine the final road model. Finally, the proposed road modeling method is verified and evaluated through experiments, and it is compared with the conventional method for digital maps based on the B-spline. The results show that the proposed method can realize a near-optimal balance between the efficiency and reliability requirements. Compared with the conventional method based on the B-spline, this method occupies less data storage and achieves higher accuracy.关键词
Cardinal样条/数字地图/道路建模/渐进优化/最优平衡Key words
cardinal spline/digital map/road modeling/gradual optimization/optimal balance分类
交通工程引用本文复制引用
夏亮,李旭,李宏海..基于Cardinal样条的数字地图道路建模方法[J].东南大学学报（英文版）,2018,34(1):48-53,6.基金项目
The National Natural Science Foundation of China(No.61273236),the National Key Research and Development Plan of China(No.2016YFC0802706,2017YFC0804804),the Program for Special Talents in Six Major Fields of Jiangsu Province(No.2017JXQC-003),the Project of Beijing Municipal Science and Technology Com-mission(No.Z161100001416001). （No.61273236）
