Dynamic range enhancement for imaging sensors
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United States of America Patent
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Dec 31, 2002
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N/A
app pub date -
Nov 12, 1997
filing date -
Nov 12, 1997
priority date (Note) -
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Abstract
A system for enhancing the dynamic range of an imaging signal includes a sensor for viewing a scene having a wide dynamic range and generating a digital image signal of the scene which is received by an attenuator for selectively attenuating the digital image signal. A demultiplexer is included in the system for receiving the digital image signal into at least a first gain signal and a second gain signal wherein a combiner receives the first and second gain signals and produces a composite image signal with minimal saturation. A normalizer may also be provided for receiving the composite image signal and adjusting it to a viewable range dynamic video output signal.
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