Application of covert illumination to intrusion surveillance, assessment, and detection

Melvin C. Maki; Stefan Scherbarth

doi:10.1117/12.210493

30 May 1995 Application of covert illumination to intrusion surveillance, assessment, and detection

Melvin C. Maki, Stefan Scherbarth

Proceedings Volume 2497, Public Safety/Law Enforcement Technology; (1995) https://doi.org/10.1117/12.210493
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

Covert illumination is an important element in providing surveillance, detection, and assessment for security applications. IR illumination is increasingly providing this function; however, conventional filament-based illuminators have limited performance and life. A new variety of light emitting diode (LED) illuminators is described that provides long life at low power. A further advance is to use a planar array of LED's with lenses to optimize the uniformity of scene illumination and maximize the illumination range. Modern CCD cameras have an inherently high IR sensitivity so are well matched to work with this illumination. Further enhancements are to integrate the combination of low-light camera and LED illuminator in a discrete column type package to make the overall illumination and assessment system unobtrusive. Finally, these components can be further combined with automated assessment aids to turn the surveillance device into a true detection sensor that can operate stand-alone without active personnel monitoring. A review of the major IR design considerations is included, along with several examples of systems to illustrate potential applications.

Citation Download Citation

Melvin C. Maki and Stefan Scherbarth "Application of covert illumination to intrusion surveillance, assessment, and detection", Proc. SPIE 2497, Public Safety/Law Enforcement Technology, (30 May 1995); https://doi.org/10.1117/12.210493

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