Journal of Geodesy and Geoinformation Science ›› 2019, Vol. 2 ›› Issue (4): 73-83.doi: 10.11947/j.JGGS.2019.0408

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Automatic Matching of Multi-scale Road Networks under the Constraints of Smaller Scale Road Meshes

Hongxing PEI1,Renjian ZHAI2(),Fang WU2,Jinghan LI2,Xianyong GONG2,Zheng WU1   

  1. 1. Center of TH-Satellite of China, Beijing 100081, China
    2. Institute of Geospatial Information, Information Engineering University, Zhengzhou 450000, China
  • Received:2017-02-03 Accepted:2018-06-03 Online:2019-12-20 Published:2020-01-08
  • Contact: Renjian ZHAI E-mail:chxy_zrj@163.com
  • About author:Hongxing PEI(1991—),male, master, majors in multi-scale representation and cartographic generalization. E-mail: 15638592360@163.com
  • Supported by:
    The National Natural Science Foundation of China Nos(41101362);The National Natural Science Foundation of China Nos(41471386)

Abstract:

In this paper, we propose a new method to achieve automatic matching of multi-scale roads under the constraints of smaller scale data. The matching process is: Firstly, meshes are extracted from two different scales road data. Secondly, several basic meshes in the larger scale road network will be merged into a composite one which is matched with one mesh in the smaller scale road network, to complete the N∶1(N>1) and 1∶1 matching. Thirdly, meshes of the two different scale road data with MN(M>1,N>1) matching relationships will be matched. Finally, roads will be classified into two categories under the constraints of meshes: mesh boundary roads and mesh internal roads, and then matchings between the two scales meshes will be carried out within their own categories according to the matching relationships. The results show that roads of different scales will be more precisely matched using the proposed method.

Key words: multi-scale matching; road networks matching; road meshes