The research of 3D mapping technology on oblique photogrammetric technique

doi:10.13474/j.cnki.11-2246.2020.0317

Abstract

Abstract: In recent years, with the rapid development of UAV technology, airborne positioning technology and image processing technology, tilt photogrammetry technology has been widely used in 1：1000 large-scale topographic mapping. However, due to various technical limitations, ordinary UAV aerial photogrammetry can not meet 1：500 large-scale topographic mapping. Based on this, this paper studies tilt photogrammetry in three aspects: image control density, model resolution and mapping method, and proposes a tilt mapping method fitting for 1：500 scale topographic map of cities and towns. The large-scale topographic map of Wencheng county obtained from the evaluation test shows that the plane accuracy of the result can reach 0.059 m, the elevation accuracy can reach 0.064 m, and the accuracy is in good condition, which play a certain guiding role in the future when taking this method for surveying and mapping.

Key words: unmanned aerial vehicle, slope photography, 3D mapping technology, image controlled density, resolution, survey mode

CLC Number:

ZHU Yiqun, WU Yuxin, JIN Guojian, LI Linqi. The research of 3D mapping technology on oblique photogrammetric technique[J]. Bulletin of Surveying and Mapping, 2020, 0(10): 48-52.

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