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Proceedings Paper

Image qualification of high-speed film for crash tests
Author(s): Jerry E. Oleksy; James H. Choi
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Paper Abstract

The Department of Transportation, National Highway Traffic Safety Administration (NHTSA) desires to develop qualifications for the film received from independent organizations that perform automobile collision performance tests. All crash tests are recorded on high-speed film. Running 18 cameras at frame rates up to 1000 frames per second is not uncommon. Some of the films acquired during the 150 to 200 ms time-frame of the actual crash are used for computation of both human and vehicle kinematics. Detailed recommendations for performing the tests are outlined by NHTSA in SAE documents. However, no specifications for film quality are defined. Problems arise when unclear and/or incorrectly exposed films result in images unsuitable for analysis. Aspects of the optical data channel that are evaluated in this paper include lighting, lenses, cameras, film, film processing, and timing. Recommendations for reliable data acquisition as well as a set of criteria are also developed.

Paper Details

Date Published: 14 October 1994
PDF: 11 pages
Proc. SPIE 2273, Ultrahigh- and High-Speed Photography, Videography, and Photonics '94, (14 October 1994); doi: 10.1117/12.189022
Show Author Affiliations
Jerry E. Oleksy, Northwestern Univ. (United States)
James H. Choi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 2273:
Ultrahigh- and High-Speed Photography, Videography, and Photonics '94
George A. Kyrala; Donald R. Snyder, Editor(s)

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