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Proceedings Paper

Correction of image deformations using B-spline surfaces in digital close range photogrammetry
Author(s): Knut Åmdal
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Paper Abstract

Abstract - This paper presents an approach for solving the geometric image deformation problem due to lens distortion, using B-Spline surfaces. The calibration method is described and experimental results are presented for a close range photogrammetry setup with an "off-the-shelf' CCD video camera and a 3D calibration frame. Active light sources, optical fibers, were used as calibration points. The design of the calibration frame was a result of experimenting with different light emitting diodes, background lighting, and optical fibers.

Paper Details

Date Published: 1 August 1990
PDF: 10 pages
Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 139531 (1 August 1990); doi: 10.1117/12.2294352
Show Author Affiliations
Knut Åmdal, The Norwegian Institute of Technology (Norway)


Published in SPIE Proceedings Vol. 1395:
Close-Range Photogrammetry Meets Machine Vision
Armin Gruen; Emmanuel P. Baltsavias, Editor(s)

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