Evaluation of LLLTV and Other Visual Surveillance Techniques for VTS Applications
COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
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The Coast Guard Vessel Traffic System VTS monitors the flow of vessel traffic within certain harbors and waterways. The addition of visual surveillance to the existing radar and radio communication VTS capability had been proposed. To determine the effectiveness of visual surveillance in a harbor environment an ISIT type low light level television LLLTV camera system was evaluated at the R and D Center for this application. Also, other alternative visual surveillance systems were briefly considered, including SIT and intensified isocon type LLLTVs, laser-gated TV, and forward looking infrared FLIR. It was concluded that restricted visibility, limited resolution of TV imagery, and the presence of many intense light sources in the field of view at night makes visual surveillance impractical in a harbor environment by rendering it least useful when surveillance is most needed.
- Land and Riverine Navigation and Guidance