The Methodology on Building High-fidelity DEM in Road Domain Based on Multi-source Data

doi:10.13474/j.cnki.11-2246.2017.0235

Abstract

Abstract: The road construction climax of reform and opening up 30 years has become one of the main reasons for the updating of DEM data in road domain. The paper discussed a methodology building high-resolution DEM based on the road design results, remote sensing image data before and after construction from google earth, terrestrial laser scanning point cloud. The demonstration was made based on the data of about 1 kilometer road in Bijie-Douge section of Hangzhou-Ruili expressway. The results showed that it was a feasible, fast and precise method based on the road design results in the road surface and side slope. The research showed that the method had the advantages of high precision, low cost and flexible observation mode, and can be widely used.

Key words: road domain, DEM, incremental update

CLC Number:

P208

ZHANG Longqi, LIU Haiyang, GUO Yunkai, LIAO Bin. The Methodology on Building High-fidelity DEM in Road Domain Based on Multi-source Data[J]. 测绘通报, 2017, 0(7): 113-116,142.

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