20 October 1986 A High Performance Infrared And Visual Imaging Sea Surveillance Sensor (IVISS)
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An imaging sensor specifically designed for passive naval surveillance of passing vessels is described. The sensor, containing an infrared and a visual channel, is part of the IVISS system. This land-based system is optimized for the identification of passing vessels by remote control. The generated images are transmitted via ordinary telephone lines to a headquarters. In principle the numberof sensors to be controlled from a headquarters is unlimited. The infrared (8-14 μ) and visual channels of the sensor are to ensure identification by day and night and in poor visibility. The sensor is based on a slow scan principle thus obtaining high sensitivity and adaption to the bandwidth of the transmission channel. The sensor generates images in the infrared and the visual spectra. The format of the generated images is 1:4 which is due to the adaption to naval objects. The general field of view of the sensor is 3° vertically x 12° horizontally. This general field of view can be moved round the horizon by means of a simple mechanical positioner. Through a digital zoom function it is possible to select three magnifications of the general view from one scanned picture. In contrast to optical zoom systems these three fixed zoom fields of view can be placed at random positions in the general view.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hans Ole Nielsen, "A High Performance Infrared And Visual Imaging Sea Surveillance Sensor (IVISS)", Proc. SPIE 0656, Contemporary Optical Instrument Design, Fabrication, and Testing, (20 October 1986); doi: 10.1117/12.938477; https://doi.org/10.1117/12.938477


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