A control method for stage follow spot lights based on image recognition

Abstract

The present invention discloses a stage follow spotlight control method based on image identification. The method comprises the following steps: 1) collecting images and infrared images of a current stage downward angle in real time; 2) processing the images and the infrared images, and forming approximate ellipse extraction characteristic points according to light spots of a spotlight; 3) calculating position where a center point is located according to the identified ellipse extraction characteristic points; 4) taking the position of the center point as a center of circle, allowing the size of the radius to be 20-25 centimetres, determining an ellipse center area, and calculating the ratio of the superposed portion of the top view shadow area formed by performers and the ellipse center area according to the infrared images so as to determine whether the ellipse center area is shielded or not; and 5) if the ellipse center area is not shielded, moving the spotlight according to the relative direction of the ellipse center area and the performers to allow the performers to be located at the center area of the ellipse. The stage follow spotlight control method based on the image identification solve the problems that a current stage follow spotlight control system is not accurate in location and easy to be disturbed so as to reach the purpose of rapidly and conveniently controlling a follow spotlight.

Description

technical field [0001] The invention relates to image processing technology, in particular to a method for controlling a stage follow spot light based on image recognition. Background technique [0002] With the development of technology, follow spot lights have become an integral part of the stage. Mainly used to focus the audience's attention on the performer by illuminating the performer with strong light. Usually a performance lasts for a long time, and only relying on manual control of the direction of the light will easily lead to fatigue of the personnel. At the same time, manual control may cause the actors not to be illuminated and affect the performance effect due to the delay of the response. [0003] In the prior art, there are already many technical solutions to control the stage follow spot lights, such as the patent No.: ZL201310145433.1 discloses a stage follow spot light follow light control system, because this system uses a large number of sensors to obt...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a stage follow spot light control method based on image recognition in view of the defects in the prior art, which can effectively solve the problems of the existing stage follow spot light control system, such as long layout time and complicated wiring. , Not suitable for temporary stages, inaccurate positioning, easy to be interfered, etc.

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