Accuracy evaluation of UAV tilt photogrammetry compared with traditional low altitude aerial photogrammetry

doi:10.13474/j.cnki.11-2246.2022.0039

Abstract

Abstract: At present, the domestic tilt photogrammetry technology is still in the stage of rapid development and promotion, and its accuracy highly depends on the selection of aerial survey parameters in the whole process of aerial survey production, so it is difficult to realize the quantitative analysis of its absolute accuracy index. In view of this difficulty, this paper adopts the way of comparative analysis taking the traditional low altitude aerial survey as the reference, on the basis of strictly unified the external data acquisition conditions and solving parameters, evaluates and analyzes the accuracy of unmanned aerial vehicle (UAV) tilt photogrammetry, and explores the outstanding technical advantages of UAV tilt photogrammetry. The experiment involves 12 kinds of mainstream aerial survey modes and 52 kinds of progressive layout of ground control points in order to compare and analyze the accuracy index of the results, and complete the quantitative analysis of tilt photogrammetry compared with traditional low altitude aerial survey. This study can provide certain reference and practical guidance for the accuracy evaluation of tilt photogrammetry.

Key words: UAV aerial photogrammetry, tilt photogrammetry, aerotriangulation, comparative analysis, accuracy evaluation

CLC Number:

P237

CAI Jialun, JIA Hongguo, LIU Guoxiang, ZHANG Bo, LIU Qiao, WU Renzhe, XIANG Wei, MAO Wenfei, ZHANG Rui. Accuracy evaluation of UAV tilt photogrammetry compared with traditional low altitude aerial photogrammetry[J]. Bulletin of Surveying and Mapping, 2022, 0(2): 31-36.

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