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Proceedings Paper

Uberwachung von steinverwitterung durch makro-photogrammetrie
Author(s): Landolf Mauelshagen
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Paper Abstract

A Rollei 6006 partial-metric camera was equiped with special objectives of 50 resp. 28 mm focal length to control and measure the surfaces of small sand-stone plates (complex research programme of the Ministry of Science and Technology of the FRG). The lenses were mounted in retro-position, a surface of the stone samples of 5 cm x 5 cm resp. 2.5 cm x 2.5 cm can be photographed. The depth of focus was 8 resp. 6 mm. An optical flat grid was used for the system calibration. The measurements were carried out by a Zeiss Planicomp C100. The standard deviation of eleva- tion after bundle adjustment was 16 m for the 50 mm-lens resp. 9 m for the 28 mm-lens. The planimetry was much better. Results of bundle adjustment will be shown and a CAD-evaluation will demonstrate the stone weathering.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 13950N (1 August 1990); doi: 10.1117/12.2294266
Show Author Affiliations
Landolf Mauelshagen, Deutsches Bergau-Museum der DMT-Gesellschaft Lur Lehre und (Germany)

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

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