US 12,306,043 B2
Hyperspectral imager method and apparatus
Richard J. Murphy, Sydney (AU); Arman Melkumyan, Sydney (AU); Anna Chlingaryan, Sydney (AU); Dai Bang Nguyen, Sydney (AU); Stuart Wishart, Sydney (AU); Alex Lowe, Sydney (AU); and Steven Scheding, Sydney (AU)
Assigned to TECHNOLOGICAL RESOURCES PTY. LIMITED, Melbourne (AU)
Filed by TECHNOLOGICAL RESOURCES PTY. LIMITED, Melbourne (AU)
Filed on May 7, 2024, as Appl. No. 18/657,343.
Application 18/657,343 is a division of application No. 17/412,029, filed on Aug. 25, 2021, granted, now 12,007,277.
Application 17/412,029 is a continuation of application No. 15/543,442, granted, now 11,125,619, issued on Sep. 21, 2021, previously published as PCT/AU2016/000004, filed on Jan. 14, 2016.
Claims priority of application No. 2015900094 (AU), filed on Jan. 14, 2015; and application No. 2015901769 (AU), filed on May 15, 2015.
Prior Publication US 2024/0295438 A1, Sep. 5, 2024
Int. Cl. G01J 3/28 (2006.01); G01J 3/02 (2006.01); G06F 18/214 (2023.01); G06F 18/24 (2023.01); H04N 23/11 (2023.01); H04N 23/51 (2023.01); H04N 23/71 (2023.01); H04N 23/73 (2023.01)
CPC G01J 3/2823 (2013.01) [G01J 3/0202 (2013.01); G01J 3/0208 (2013.01); G01J 3/0237 (2013.01); G01J 3/0264 (2013.01); G01J 3/0286 (2013.01); G01J 3/0291 (2013.01); G01J 3/28 (2013.01); G06F 18/214 (2023.01); G06F 18/24 (2023.01); H04N 23/11 (2023.01); H04N 23/51 (2023.01); H04N 23/71 (2023.01); H04N 23/73 (2023.01); G01J 2003/2826 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of processing hyperspectral imagery captured under natural lighting conditions, the method including the steps of:
(a) capturing a hyperspectral image of an external environment in natural illumination conditions;
(b) capturing overlapping range distance data of surfaces in the external environment;
(c) utilizing the overlapping range data to decompose the external environment into a series of patches or a mesh;
(d) performing an inverse rendering of light absorption on each patch to determine level of reflectance of the patch, by at least one of: a sun light source, ambient sky illumination and surrounding patches; and
(e) utilizing the level of reflectance of each patch to alter the level of corresponding pixels within the hyperspectral image.