Focus self-tracking stage follow spotlight system and method

Abstract

The invention relates to a focus self-tracking stage follow spotlight system, which comprises a follow spotlight, an image acquisition device, an image processor, two PID controllers and a servo device, wherein the image acquisition device is used for acquiring a stage scene image in real time; the image processor is used for processing the stage scene image to obtain an image area of an actor andextracting the mass center of the actor; the two PID controllers are used for receiving deviation information, measured through the image processor, of a mass center position of the actor and an initial position, and calculating and outputting a rotation angle output value of the servo device; the servo device is used for controlling and adjusting a rotation angle of the follow spotlight; the image processor determines a real-time position of the mass center of the actor and the initial position according to the stage scene image acquired through the image acquisition device and feeding a position deviation between the real-time position and the initial position into the two PID controllers for calculating and outputting the rotation angle output value; and the servo device receives the rotation angle output value to control the rotating action of the follow spotlight, thereby achieving real-time tracking of the actor through the follow spotlight.

Description

technical field [0001] The invention relates to the technical field of stage lighting, in particular to a focus self-tracking stage follow spot light system. Background technique [0002] The use of stage lighting is an indispensable and important means in stage art to achieve the purpose of highlighting key points, shaping the image of characters, and enhancing the atmosphere of the environment. As a device that actors can perform lighting compensation in time during performances, follow spot lights can use beams of light to highlight actors or other special effects when the stage is dark. Human remote control is still required, which consumes a lot of manpower, and there will be inaccurate control. Some follow-spot control systems controlled by computers do not require a lot of manpower, but require professional monitoring personnel to operate online in real time. , the degree of automation is not high and the cost is high, so a tracking light system with precise control,...

AI Technical Summary

Problems solved by technology

As a device that actors can perform lighting compensation in time during performances, follow spot lights can use beams of light to highlight actors or other special effects when the stage is dark. Human remote control is still required, which consumes a lot of manpower, and there will be inaccurate control. Some follow-spot control

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