Systems and methods for colorimetric and spectral material estimation
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United States of America Patent
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Nov 17, 2015
Grant Date -
Jan 9, 2014
app pub date -
May 3, 2013
filing date -
Jul 9, 2012
priority date (Note) -
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Abstract
Systems, devices, and methods for generating signatures for an image obtain an image, estimate a spectral image of the obtained image, calculate one or both of a detection component of the image and a residual component of the image, wherein the detection component of the image is based on the spectral image, a spectral-power distribution for a specific illuminant, and spectral sensitivities of a detector, and wherein calculating the residual component of the image is based on the spectral image, the spectral power distribution for the specific illuminant, and the spectral sensitivities of the detector or, alternatively, based on the spectral image and the calculated detection component, and generate an image signature based on one or both of the detection component and the residual component.
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