公开(公告)号：US11828655B2

公开(公告)日：2023-11-28

申请号：US17345331

申请日：2021-06-11

Applicant: University of Electronic Science and Technology of China

Inventor： Yun Zhou ,  Jian Lv ,  Longcheng Que ,  Kang He ,  Guanyu Mi

IPC: G01J5/00 ,  G06T7/80 ,  G06T7/90 ,  G06T7/00 ,  G01J5/80

CPC classification number: G01J5/00 ,  G06T7/0002 ,  G06T7/80 ,  G06T7/90 ,  G01J5/80 ,  G06T2207/10048 ,  G06T2207/30168

Abstract: A method and system of two-point correction based on temperature substitution, includes: a black body related to the lens temperature is arranged outside a lens, a first black body arranged in front of the lens of an infrared thermal camera, so as to collect a gray value of the first black body; a temperature of the first black body being equal to the lens temperature; a second black body arranged in front of the lens of the infrared thermal camera, so as to collect a gray value of the second black body; a temperature of the second black body being higher than the lens temperature. Two correction parameters obtained by black body calculation related to temperature are strongly applicable, which eliminates the problem of image quality deterioration caused by temperature changes and greatly eliminates the pot lid phenomenon due to non-uniformity, thereby accurately calculating the corrected gray value.