Accuracy analyses of a fixed-wing UAV equipped with SPAN CPT for direct georeferencing and DSM generation

Jiann-Yeou Rau, Chih Yang Chen, Jyun Ping Jhan, Kircheis Liu, William Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to develop a UAV imaging system capable of fast disaster surveying and stereo mapping. Thus, a fixed-wing UAV equipped with a SPAN-CPT and a Canon EOS 5D Mark II DSLR camera are used for aerial image acquisition. For system calibration, an in-door camera calibration field is designed for the calibration of interior orientation parameters (IOPs) and a two-step boresight and lever-arm calibration procedure is used for boresight / lever-arm calibration. The performance of the whole system will be evaluated including accuracy of bundle block adjustment through different aerial triangulation (AT) software, the precision of system calibration, the accuracy of stereo mapping, the accuracy of direct geo-referencing (DG), and the accuracy of the generate DSM. Experimental results show that the precision of the generated DSMs by non-control and controlled AT are 0.9 m and 0.51 meters, respectively. It proves that the elevation accuracy is high for landslide volume loss estimation after disaster even control points are not utilized and the use of DSLR camera for aerial mapping is promising for stereo mapping. In the meantime, the RMS errors of DG in planimetric and vertical directions are both less than 1 m and 4 m, respectively. This is acceptable for a flight height of 1200 m and for the purpose of fast hazard investigation.

Original languageEnglish
Title of host publication34th Asian Conference on Remote Sensing 2013, ACRS 2013
PublisherAsian Association on Remote Sensing
Pages512-519
Number of pages8
ISBN (Print)9781629939100
Publication statusPublished - 2013 Jan 1
Event34th Asian Conference on Remote Sensing 2013, ACRS 2013 - Bali, Indonesia
Duration: 2013 Oct 202013 Oct 24

Publication series

Name34th Asian Conference on Remote Sensing 2013, ACRS 2013
Volume1

Other

Other34th Asian Conference on Remote Sensing 2013, ACRS 2013
CountryIndonesia
CityBali
Period13-10-2013-10-24

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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