A Method of Automatically Adjusting Camera Preset Position According to Surveillance Target

Abstract

The invention discloses a method for automatically adjusting a preset position of a camera in accordance with a monitoring target; the method comprises the following steps: acquiring the position of the monitoring target; determining a two-dimensional horizontal rotation angle and a two-dimensional vertical rotation angle of the camera, with respect to the monitoring target, in a three-dimensional coordinate system; respectively translating the two-dimensional horizontal rotation angle and the two-dimensional vertical rotation angle into three-dimensional space angles; calculating a horizontal-direction angle and a vertical-direction angle of a camera lens with respect to the camera according to the two-dimensional horizontal rotation angle, the two-dimensional vertical rotation angle and the three-dimensional space angles; obtaining a focal length and a viewing angle according to a distance between the monitoring target and the camera, the width of a monitoring region and the length of a diagonal line of an imaging element of the camera lens. By adopting the method, the preset position of the camera can be generated automatically, so that the camera is capable of being rotated to the preset position rapidly and accurately, the deficiencies of insufficient flexibility, low accuracy and low precision in a visual testing layout method are avoided, and the waste of money caused by many times of onsite scene survey is avoided.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to a method for adjusting a camera preset position. Background technique [0002] Video surveillance systems are used in many occasions, such as unattended substation systems. As the basis for supporting unattended substations, the video surveillance system needs to monitor the operating status of the equipment in real time. At present, the layout of the camera is installed according to the two-dimensional drawing first, and then the preset position of the camera is adjusted according to the naked eye recognition after installation, which belongs to the visual layout method. This method lacks flexibility, low precision, and may not be able to accurately monitor the equipment. Using the visual layout method often requires multiple on-site scene surveys, resulting in a waste of funds. Contents of the invention [0003] The purpose of the present invention is to overcome the defic...

AI Technical Summary

Problems solved by technology

This method lacks flexibility, low precision, and may not be able to accurately monitor the equipment

Using the visual layout method often requires multiple on-site scene surveys, resulting in a waste of funds

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