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Proceedings Paper

Automatic Covert Vehicle Recorder
Author(s): Charles G. Grover; W. Lawton King
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Paper Abstract

A need exists for a versatile, compact, automatic system that will covertly record vehicle license plates. They cannot be successfully recorded by straight infrared photography. Alternative highly red sensitive recorders of all types reduce the apparent subject contrast below the identification level. An alternate approach making use of a texture enhancing light system is described. The method has been placed in service and has consistently produced covert records of both high and low apparent contrast license plates on vehicles crossing the U.S. border. The design approach used is detailed and the complete system is described.

Paper Details

Date Published: 20 September 1977
PDF: 8 pages
Proc. SPIE 0108, Optics in Security and Law Enforcement I, (20 September 1977); doi: 10.1117/12.955482
Show Author Affiliations
Charles G. Grover, Naval Surface Weapons Center (United States)
W. Lawton King, Naval Surface Weapons Center (United States)

Published in SPIE Proceedings Vol. 0108:
Optics in Security and Law Enforcement I
Charles Freeman; Sol Nudelman; Joseph C. Richmond, Editor(s)

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