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Proceedings Paper

Image Dynamic Range Compression For Law Enforcement
Author(s): H. J. Caulfield; P. Mueller; J. Rozelle
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Paper Abstract

Optical nondestructive readout of photographic film allows the forensic photographer to see image detail despite overexposure, underexposure, or both. The methods involve direct schlieren viewing of the surface relief image of the original negative. A "super camera" largely insensitive to range and brightness variations in the scene is described.

Paper Details

Date Published: 23 June 1983
PDF: 3 pages
Proc. SPIE 0339, Optics and Images in Law Enforcement II, (23 June 1983); doi: 10.1117/12.933651
Show Author Affiliations
H. J. Caulfield, Aerodyne Research, Inc. (United States)
P. Mueller, Aerodyne Research, Inc. (United States)
J. Rozelle, Aerodyne Research, Inc. (United States)


Published in SPIE Proceedings Vol. 0339:
Optics and Images in Law Enforcement II
Avron S. Hecht, Editor(s)

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