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Proceedings Paper

Accuracy of multi-look geo-coding
Author(s): E. M. Weidaw; M. W. Roth; M. Z. Brown; A. E. Scheck
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Paper Abstract

Very accurate geo-location (geo-coding) of imagery taken at long range is a very large challenge. Whereas GPS can supply a very accurate sensor position, the hardware for the required precision pointing can have a very large cost. Roth, et al (2005) showed that because of the accuracy of lidar range-data, a tri-lateration method (called Multi-Look Lidar or Multi-Look Geo-Coding) can achieve very accurate geocoding at very long ranges and very low cost by using data-driven processing. This paper presents extensive flight-testing results using commercial airborne lidar. Because the tri-lateration method produces a large number of control points, the resulting accuracy of the geo-coded lidar data is somewhat better than that predicted for a single control point due to control-point averaging.

Paper Details

Date Published: 29 April 2010
PDF: 8 pages
Proc. SPIE 7684, Laser Radar Technology and Applications XV, 768413 (29 April 2010); doi: 10.1117/12.853003
Show Author Affiliations
E. M. Weidaw, The Johns Hopkins Univ. Applied Physics Lab. (United States)
M. W. Roth, The Johns Hopkins Univ. Applied Physics Lab. (United States)
M. Z. Brown, The Johns Hopkins Univ. Applied Physics Lab. (United States)
A. E. Scheck, The Johns Hopkins Univ. Applied Physics Lab. (United States)


Published in SPIE Proceedings Vol. 7684:
Laser Radar Technology and Applications XV
Monte D. Turner; Gary W. Kamerman, Editor(s)

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