公开(公告)号：US20220187131A1

公开(公告)日：2022-06-16

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 ,  G06T7/00 ,  G06T7/90

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.

公开(公告)号：US20220058789A1

公开(公告)日：2022-02-24

申请号：US17409733

申请日：2021-08-23

Applicant: University of Electronic Science and Technology of China

Inventor： Yun ZHOU ,  Wuyi WANG ,  Longcheng QUE ,  Jian LV

IPC: G06T7/00 ,  G06K9/62 ,  G01J5/00

Abstract: The present disclosure provides a method for processing an infrared image of a power device based on a measured temperature. The method includes: S1: acquiring grey data images of a power device at different environmental temperatures with an infrared thermal imager; and S2: constructing, according to the grey data images of the power device acquired at the different environmental temperatures with the infrared thermal imager in step S1, a machine learning (ML) temperature conversion model, and converting the grey data images at the different environmental temperatures into temperature data with the model. The method for processing an infrared image of a power device based on a measured temperature provided by the present disclosure greatly improves the practicability of the infrared image in the power device, and achieves a better processing effect than the conventional grey data imaging method.