Long Wavelength Video-Based Event Detection, Preliminary Results from the CVNX and VS1 Test Series, Ex-USS SHADWELL, April 7-25, 2003
Abstract
This report documents results from long wavelength-response, or night vision video detection (LWVD) of fire, smoke, and hot objects obtained during the CVNX and VS1 Test Series. The cameras demonstrated thermal imaging capabilities and an enhanced sensitivity to flaming fires and other hot objects when compared to co-located regular video cameras. Video event detection with long wavelength cameras is discussed and compared with the results of video event detection systems using regular cameras. For quantitative comparison to the commercial video-based fire detection systems, a simple luminosity-based algorithm was developed and used to evaluate camera/filter combinations for fire, smoke, and nuisance (false) event detection and response times. The LWVD system provides higher detection sensitivity but also more false alarms when compared to regular video detection systems. The thermal imaging capabilities of the LWVD system are evaluated based on comparison with temperature measurements of a fire-heated bulkhead and a laboratory blackbody emitter. Good agreement is obtained for hot objects at temperatures above 400 deg C.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 30, 2003
- Accession Number
- ADA423240
Entities
People
- Christian P. Minor
- Daniel A. Steinhurst
- Daniel T. Gottuk
- Jeffrey C. Owrutsky
- Susan L. Rose-Pehrsson
Organizations
- United States Naval Research Laboratory