Accuracy of multi-look geo-coding

E. M. Weidaw; M. W. Roth; M. Z. Brown; A. E. Scheck

doi:10.1117/12.853003

29 April 2010 Accuracy of multi-look geo-coding

E. M. Weidaw, M. W. Roth, M. Z. Brown, A. E. Scheck

Proceedings Volume 7684, Laser Radar Technology and Applications XV; 768413 (2010) https://doi.org/10.1117/12.853003
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

E. M. Weidaw, M. W. Roth, M. Z. Brown, and A. E. Scheck "Accuracy of multi-look geo-coding", Proc. SPIE 7684, Laser Radar Technology and Applications XV, 768413 (29 April 2010); https://doi.org/10.1117/12.853003

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