测绘通报 ›› 2018, Vol. 0 ›› Issue (2): 111-115.doi: 10.13474/j.cnki.11-2246.2018.0055

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Oblique Photogrammetric Technique Applied in Surveying and Mapping Large-scale Topographic Map

XU Siqi1, HUANG Xianfeng1,2, ZHANG Fan1,2, YONG Xiaolong2, XIA Zhimin2, WANG Tao2   

  1. 1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
    2. Wuhan Daspatial Technology Co. Ltd., Wuhan 430223, China
  • Received:2017-05-25 Revised:2017-08-08 Online:2018-02-25 Published:2018-03-06

Abstract:

Oblique photogrammetric technique is an emerging technology in recent years in the international surveying and mapping field,already used for quick construction of 3D city model.Given the common methods of surveying and mapping large-scale topographic map cannot simultaneously meet the time and cost requirements,this paper proposes a method based on oblique photogrammetric technique.By the advantages of flexibility,low cost and high-efficiency of unmanned aerial vehicle(UAV) oblique photogrammetric technique,the oblique images can automatically generate the three-dimensional model and point cloud by software.The assessment results of the Kelan County large-scale topographic map in experiment shows that the plane accuracy is 0.140 meters and elevation accuracy is 0.150 meters,meeting the requirements.The method is suitable for surveying and mapping the large-scale topographic map of small areas.

Key words: oblique photogrammetric technique, large-scale topographic map, live 3D model, point cloud, drawing technology

CLC Number: