公开(公告)号：US11165965B2

公开(公告)日：2021-11-02

申请号：US16709407

申请日：2019-12-10

Applicant: Axis AB

Inventor： Thomas Winzell ,  Hongping Zhao ,  Anthony Hawkins

IPC: H04N5/232 ,  H04N7/18

Abstract: A method of assisting tilt angle adjustment of a thermal camera comprises arranging the thermal camera at an initial tilt angle, acquiring at least one thermal image by the thermal camera, determining, from the at least one thermal image, a series of sharpness indicators of image parts corresponding to vertically spaced parts of the camera view, identifying a maximum in the series of sharpness indicators, based on the identified maximum, determining a target sharpness indicator as a predetermined fraction of the identified maximum, during tilt angle adjustment, assisting by providing a target signal for indicating a target tilt angle of the thermal camera in which a sharpness indicator of a lower part of the camera's field of view equals the determined target sharpness indicator.