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Proceedings Paper

Photogrammetric Aspects Of OTF And MTF Measurements For Quality Assessment
Author(s): Erik P. Welander
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Paper Abstract

The accuracy of OTF and MTF measurements of aerial cameras and photographs is discussed. Modulations for positions at 40° off axis have to be determined for the wide angle cameras commonly used in photogrammetry. Instead of sinusoidal test patterns, natural edges on the ground can be utilized in practical aerial photography. The particular problems concerning measurements of emulsions are dealt with. The possibility of utilizing photo interpretation results or photogrammetric measurements of ground details as an aid for establishment of a quality criterion for aerial photographs is discussed.

Paper Details

Date Published: 16 March 1976
PDF: 6 pages
Proc. SPIE 0073, Quality Assurance in Optical and Electro-Optical Engineering, (16 March 1976); doi: 10.1117/12.954673
Show Author Affiliations
Erik P. Welander, National Land Survey (Sweden)

Published in SPIE Proceedings Vol. 0073:
Quality Assurance in Optical and Electro-Optical Engineering
Lionel R. Baker, Editor(s)

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