Westinghouse Electric Corporation

William F Parrish

Kenneth E Wood

James T O'Farrell

James M Fawcett

Gordon M Roesler

An image motion compensation arrangement for a TV sensor system having an image intensifier section and a camera tube section, and which moves at a velocity V over a target area at an altitude H. An electron image of the viewed scene is accelerated between electrodes in the image intensifier section and a deflection coil is added to deflect this electron image. The coil is provided with a signal such that the deflection velocity is proportional to the ratio of V/H. With automatic light control provided, the deflection signal is also made a function of a control signal which controls a high voltage power supply to the accelerating electrodes.

Image motion compensation for a TV sensor system

An underwater floodlit scene is viewed by a TV camera. The first few active TV lines in the scan format, indicative of the illuminated field where backscatter is a minimum, are stored on a video disk. As the apparatus travels over a target area to be viewed, subsequent portions of the TV video signal from the minimum backscatter area are subsequently stored on the disk. The stored signals are then displayed on a TV monitor as a moving window display. The number of active TV lines gated for storage on the disk may be made proportional to the carrier vehicle speed, altitude and camera viewing angle, or field of view.

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Baltimore, MD, United States of America

William F Parrish