Democratizing photogrammetry:an accuracy perspective  

作　　者：Jie Shan Zhixin Li Damon Lercel Kevan Tissue Joseph Hupy Joshua Carpenter 

机构地区：[1]School of Civil Engineering,Purdue University,West Lafayette,IN,USA [2]School of Aviation and Transportation Technology,Purdue University,West Lafayette,IN,USA

出　　处：《Geo-Spatial Information Science》2023年第2期175-188,共14页地球空间信息科学学报（英文）

摘　　要：Photogrammetry is experiencing an era of democratization mostly due to the popularity and availability of many commercial off-the-shelf devices,such as drones and smartphones.They are used as the most convenient and effective tools for high-resolution image acquisition for a wide range of applications in science,engineering,management,and cultural heritage.However,the quality,particularly the geometric accuracy,of the outcomes from such consumer sensors is still unclear.Furthermore,the expected quality under different control schemes has yet to be thoroughly investigated.This paper intends to answer those questions with a comprehensive comparative evaluation.Photogrammetry,in particular,structure from motion,has been used to reconstruct a 3D building model from smartphone and consumer drone images,as well as from professional drone images,all under various ground control schemes.Results from this study show that the positioning accuracy of smartphone images under direct geo-referencing is 165.4 cm,however,this could be improved to 43.3 cm and 14.5 cm when introducing aerial lidar data and total station surveys as ground control,respectively.Similar results are found for consumer drone images as well.For comparison,this study shows the use of the professional drone is able to achieve a positioning accuracy of 3.7 cm.Furthermore,we demonstrate that through the combined use of drone and smartphone images we are able to obtain full coverage of the entire target with a 2.3 cm positioning accuracy.Our study concludes that smartphone images can achieve an accuracy equivalent to consumer drone images and can be used as the primary data source for building facade data collection.

关 键 词：DRONE SMARTPHONE PHOTOGRAMMETRY Structure from Motion(SfM) aero triangulation point clouds 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]