Directly georeferenced ground feature points with UAV borne photogrammetric platform without ground control

Meng Lun Tsai, Kai-Wei Chiang, Cheng Fang Lo, Jiann-Yeou Rau

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

Abstract

In order to facilitate applications such as environment detection or disaster monitoring, developing a quickly and low cost system to collect near real time spatial information is very important. Such a rapid spatial information collection capability has become an emerging trend in the technology of remote sensing and mapping application. In this study, a fixed-wing UAV based spatial information acquisition platform is developed and evaluated. The proposed UAV based platform has a direct georeferencing module including an low cost INS/GPS integrated system, low cost digital camera as well as other general UAV modules including immediately video monitoring communication system. This direct georeferencing module is able to provide differential GPS processing with single frequency carrier phase measurements to obtain sufficient positioning accuracy. All those necessary calibration procedures including interior orientation parameters, the lever arm and boresight angle are implemented. In addition, a flight test is performed to verify the positioning accuracy in direct georeferencing mode without using any ground control point that is required for most of current UAV based photogrammetric platforms. In other word, this is one of the pilot studies concerning direct georeferenced based UAV photogrammetric platform. The preliminary results in term of positioning accuracy in direct georeferenced mode without using any GCP illustrate horizontal positioning accuracies in x and y axes are both less than 20 meters, respectively. On the contrary, the positioning accuracy of z axis is less than 50 meters with 600 meters flight height above ground. Such accuracy is good for near real time disaster relief. Therefore, it is a relatively safe and cheap platform to collect critical spatial information for urgent response such as disaster relief and assessment applications where ground control points are not available.

Original languageEnglish
Title of host publicationInnovation for Applied Science and Technology
Pages1523-1527
Number of pages5
DOIs
Publication statusPublished - 2013 Feb 20
Event2nd International Conference on Engineering and Technology Innovation 2012, ICETI 2012 - Kaohsiung, Taiwan
Duration: 2012 Nov 22012 Nov 6

Publication series

NameApplied Mechanics and Materials
Volume284-287
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

Other2nd International Conference on Engineering and Technology Innovation 2012, ICETI 2012
CountryTaiwan
CityKaohsiung
Period12-11-0212-11-06

Fingerprint

Unmanned aerial vehicles (UAV)
Disasters
Global positioning system
Costs
Fixed wings
Phase measurement
Monitoring
Digital cameras
Remote sensing
Communication systems
Calibration
Processing

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Tsai, M. L., Chiang, K-W., Lo, C. F., & Rau, J-Y. (2013). Directly georeferenced ground feature points with UAV borne photogrammetric platform without ground control. In Innovation for Applied Science and Technology (pp. 1523-1527). (Applied Mechanics and Materials; Vol. 284-287). https://doi.org/10.4028/www.scientific.net/AMM.284-287.1523
Tsai, Meng Lun ; Chiang, Kai-Wei ; Lo, Cheng Fang ; Rau, Jiann-Yeou. / Directly georeferenced ground feature points with UAV borne photogrammetric platform without ground control. Innovation for Applied Science and Technology. 2013. pp. 1523-1527 (Applied Mechanics and Materials).
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Tsai, ML, Chiang, K-W, Lo, CF & Rau, J-Y 2013, Directly georeferenced ground feature points with UAV borne photogrammetric platform without ground control. in Innovation for Applied Science and Technology. Applied Mechanics and Materials, vol. 284-287, pp. 1523-1527, 2nd International Conference on Engineering and Technology Innovation 2012, ICETI 2012, Kaohsiung, Taiwan, 12-11-02. https://doi.org/10.4028/www.scientific.net/AMM.284-287.1523

Directly georeferenced ground feature points with UAV borne photogrammetric platform without ground control. / Tsai, Meng Lun; Chiang, Kai-Wei; Lo, Cheng Fang; Rau, Jiann-Yeou.

Innovation for Applied Science and Technology. 2013. p. 1523-1527 (Applied Mechanics and Materials; Vol. 284-287).

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

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