THERMOGRAPHY FOR A THERMAL IMAGING CAMERA
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United States of America Patent
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Mar 3, 2016
app pub date -
Aug 27, 2015
filing date -
Aug 28, 2014
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Methods and systems for pixel by pixel thermography for a thermal imaging system with a Focal Plane Array (FPA), a shutter for subjecting the FPA to a flat field scene and a temperature sensor which reads the temperature of the system including the flat field scene temperature, including determining the flux expected from the flat field scene from the value of the temp sensor and flux versus temperature curves, black-body curves, presenting the FPA with the flat field scene at the known temperature, at predetermined times during camera use, calculating a gain factor for each pixel relating the observed signal from each pixel to the expected flux, exposing the FPA to an actual scene, and using the actual flux observed and the gain factor relate each pixel's signal to temperature using flux versus temperature blackbody curves.
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