US 12,072,242 B2
Hyperspectral sensing system and processing methods for hyperspectral data
Nicholas Tufillaro, Corvallis, OR (US); Ivan Lalovic, Portland, OR (US); and Omar Zurita, San Diego, CA (US)
Assigned to Flying Gybe Inc., Corvallis, OR (US)
Filed by Flying Gybe Inc., Corvallis, OR (US)
Filed on Apr. 14, 2021, as Appl. No. 17/230,431.
Application 17/230,431 is a division of application No. 16/583,042, filed on Sep. 25, 2019, granted, now 11,073,423.
Application 16/583,042 is a continuation in part of application No. 16/366,635, filed on Mar. 27, 2019, granted, now 10,794,888, issued on Oct. 6, 2020.
Claims priority of provisional application 62/648,779, filed on Mar. 27, 2018.
Prior Publication US 2021/0231498 A1, Jul. 29, 2021
Int. Cl. G01J 3/28 (2006.01); G01J 3/02 (2006.01); G01J 3/40 (2006.01)
CPC G01J 3/2823 (2013.01) [G01J 3/0264 (2013.01); G01J 3/28 (2013.01); G01J 3/40 (2013.01); G01J 2003/2826 (2013.01); G01J 2003/2866 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of measuring a radiometrically calibrated spectrum using a spectral sensor deployed at an outdoor location without relocating the spectral sensor, the method comprising:
measuring a spectrum of light using a spectral sensor deployed at an outdoor location;
normalizing the measured spectrum using a selected normalizing factor;
computing a simulated spectrum based on a simulation of at least a portion of the atmosphere at the outdoors location, the simulation including one or more adjustable parameters;
adjusting at least one of the adjustable parameters to produce an adjusted simulated spectrum matching the measured spectrum according to one or more predefined criteria;
determining a mathematical transformation capable of transforming the measured spectrum, such that at least a portion of the transformed measured spectrum approximates at least a portion of the adjusted simulated spectrum; and
performing the mathematical transformation on the measured spectrum to produce a radiometrically calibrated spectrum.