Orthorectification of Quickbird ortho-ready imagery: A case study over montainous terrain

Authors: Gil, M.; Corbelle, E.; Ortiz, J.

Source: Survey Review, Volume 43, Number 320, April 2011 , pp. 199-209(11)

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Abstract:

Geometric quality of ortho-rectified imagery is crucial for their usefulness in mapping and map updating. The use of the recently appeared very high resolution images gave cause to a debate regarding which is the best approach to geometrically correct them. This paper presents a case-study of image ortho-rectification using a QuickBird scene over an area of mountainous relief. Conclusions about ortho-rectification models are consistent with recent studies by other authors, indicating the superiority of 3D rigorous models and 3D Rational Functions (with rational polynomial coefficients supplied by the image vendor) in terms of final accuracy and number of ground control points needed. The resulting positioning errors are representative of what can be expected in an operational context by end-users such as private companies or state agencies and are well within ASPRS Class 1 requirements for the 1:5,000 scale.

Keywords: PLANIMETRIC ACCURACY; QUICKBIRD; ORTHO-RECTIFICATION TEST

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/003962611X12894696205064

Affiliations: Department of Agroforestry Engineering, University of Santiago de Compostela, 27002 Lugo, Spain

Publication date: 2011-04-01

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