Image pickup system with an image pickup device for control
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United States of America Patent
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Oct 4, 1994
Issued Date -
N/A
app pub date -
Apr 16, 1992
filing date -
Apr 16, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
An image pickup system mounted on a craft flying an orbit above an object zone and sequentially picking up the images of unit areas defined by the swath width of the object zone and a distance in the direction of orbit. The system has a main image pickup device and a control image pickup device for picking up the image of an area ahead of the visual field of the main pickup device, i.e., a forward area preceding the unit area. While the craft flies along the orbit, the control image pickup device detects the radiance distribution of the forward area to thereby control, for example, the sensitivity of the main image pickup device. To detect the radiance distribution, a data processing section included in the control pickup device converts data picked up in the forward area to an image to allow the image to be compared with predetermined reference values.
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