Method and device for controlling tripod head

Abstract

The invention provides a method and a device for controlling a tripod head. The method includes acquiring two-dimensional plane pixel coordinates of a target shooting object triggered by a user; computing real space projection plane information of the target shooting object according to the two-dimensional plane pixel coordinates of the target shooting object; generating control parameters of the tripod head according to the real space projection plane information; and controlling the tripod head to track and shoot the target shooting object via the control parameters of the tripod head. The method and the device have the advantages that tripod head mounting and debugging procedures can be simplified, and the control precision for tripod head and the shooting extensibility of the tripod head are effectively improved.

Description

technical field [0001] The present application relates to the technical field of pan-tilt control, in particular to a pan-tilt control method and a pan-tilt control device. Background technique [0002] The pan / tilt is a supporting device for installing and fixing the camera. It is divided into two types: fixed pan / tilt and moving pan / tilt. The fixed pan / tilt is suitable for the situation where the surveillance range is not large. After the camera is installed on the fixed pan / tilt, the level of the camera can be adjusted. And pitch angle, after reaching the best working posture, just lock the adjustment mechanism. The motion pan / tilt is suitable for scanning and monitoring a large area, and it can expand the monitoring range of the camera. The high-speed attitude of the motion pan / tilt is realized by two executive motors, and the motors receive signals from the controller to run and position accurately. Under the action of the control signal, the camera on the PTZ can not...

AI Technical Summary

Problems solved by technology

[0004] In practical applications, this kind of PTZ control has several obvious defects. For example, when the subject is a moving person with a large range of movement, it needs to continuously update instructions to switch the preset position; it cannot track and shoot, real-time capture

In the application of conference or teaching, switching the shooting range is mostly achieved by installing buttons on the seat. The wiring is cumbersome during installation, and the user needs to cooperate when using it.

Moreover, this function setting is cumbersome and must be manually set one by one, with a large workload, so it is also difficult to adjust when it is installed for the first time or when the space or environment changes. Therefore, in the prior art, only 128 preset positions can be set at most. does not accurately cover the entire three-dimensional space

The above problems lead to the troublesome installation and debugging of the existing pan-tilt control technology, the poor accuracy of the pan-tilt control, and the poor scalability of the pan-tilt shooting due to the limitation of preset positions.

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