Patent ID: 9710721
Date: 2017-07-18
CPC Classifications: G06K,G06T

Claim:
1. A method for use in atmospheric compensation of a multi or hyper spectral image, the method comprising: designating pixels of the image into one of at least a lower water content group and a higher water content group based on a retrieved water vapor value of each pixel; calculating an average water vapor content value for each of the lower and higher water content groups of pixels; calculating a gain value and an offset value for each of the lower and higher water content groups; associating each of the average water vapor content values with the respective gain and Offset values of each of the lower and higher water content groups; calculating gain and offset values for individual pixels of the image by interpolating or extrapolating based on the two average water vapor content values using the water vapor value of each pixel; and compensating at least part of the image using the calculated gain and offset values of the individual pixels.