Review article

Examination of the Influence of Lens Distortion of Non-Metric Digital Cameras on the Accuracy of Photogrammetric Survey

Dubravko Gajski orcid.org/0000-0002-0237-647X ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Mateo Gašparović orcid.org/0000-0003-2345-7882 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia

Abstract

This paper examines the influence of radial and tangential lens distortion of non-metric digital cameras on the accuracy of the photogrammetric survey, primarily using the method of photo-triangulation with self-calibration. 2D-template with the marks measured using image correlation is being used as a test field to determine the distortion. The results indicate decisive influence of radial and tangential distortion on the results of photogrammetric measurements and also of self-calibration. Therefore, we propose an independent predetermination of the effects of distortion and its elimination before self-calibration. The results were confirmed by independent equalization of photo-triangulation with newly introduced parameters.

Keywords

lens distortions; non-metric cameras; photo-triangulation; self-calibration; photogrammetry

Hrčak ID:

137558

URI

https://hrcak.srce.hr/137558

Publication date:

20.3.2015.

Article data in other languages: croatian

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