公开(公告)号：US20210293626A1

公开(公告)日：2021-09-23

申请号：US17192927

申请日：2021-03-05

Applicant: Axis AB

Inventor： Thomas WINZELL ,  Anthony HAWKINS

IPC: G01J5/00 ,  G01J5/02

Abstract: A method for temperature calibration and determination of a temperature in a scene. At each time point out of a plurality of time points in a first period of time, collecting an ambient temperature representing a temperature at a first part of the scene and collecting thermal image sensor signal values corresponding to the collected ambient temperatures and relating to the first part. Determine a calibration function based on the collected ambient temperatures and the thermal image sensor signal values corresponding to each of the collected ambient temperatures. In a second period of time, capturing a thermal image of the scene comprising thermal image sensor signal values relating to a second part of the scene and determine a temperature at the second part of the scene based on the calibration function and based on thermal image sensor signal values comprised in the thermal image.