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Proceedings Paper • Open Access

Production of a favorable calibration target for the determination of distortions of lenses in image processing
Author(s): Rolf Hoffmann; Gunther Notni

Paper Abstract

Lenses have a number of faults. The distortion is an error which has a negative effect especially in metrological applications. In extreme cases, distortion can also be visible to the naked eye. The distortion of lenses is a systematic error that can be corrected numerically. For this purpose, a target with a smaller local deviation is necessary. These targets are produced and measured with great effort. Especially for the area of large object fields the effort increases enormously. For this reason, no correction has been made for larger measuring ranges. In order to be able to apply a correction nevertheless, a compromise solution is required that produces a target with little effort, with which a correction becomes possible that is better than not applying any correction at all. Here, calibration targets were printed and examined with commercially available printers.

Paper Details

Date Published: 17 September 2019
PDF: 12 pages
Proc. SPIE 11144, Photonics and Education in Measurement Science 2019, 111441C (17 September 2019); doi: 10.1117/12.2532544
Show Author Affiliations
Rolf Hoffmann, Technische Univ. Ilmenau (Germany)
Gunther Notni, Technische Univ. Ilmenau (Germany)

Published in SPIE Proceedings Vol. 11144:
Photonics and Education in Measurement Science 2019
Maik Rosenberger; Paul-Gerald Dittrich; Bernhard Zagar, Editor(s)

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