Research on Stage Automatic Light-following System Based on Trajectory Prediction

Abstract

The automatic tracking system is one of the current research hotspots of stage lighting technology. In order to improve the real-time problem of the stage automatic tracking system, an automatic tracking method based on trajectory prediction is proposed in this paper. This method is based on the image recognition technology to track and locate the stage target, and on this basis, adds a trajectory prediction algorithm, and uses an interactive multi-model algorithm based on Kalman filter to predict the position coordinates of the stage actors at the next moment. The real-time position coordinate information obtained by tracking and positioning is used as the observation value of the prediction algorithm to predict the position coordinate at the next moment, and the angle value of the P/T axis rotation of the scanner is calculated through the predicted coordinate, so as to control the rotation of the scanner to realize automatic tracking. Experimental results show that this system can effectively improve the real-time performance of the automatic tracking system.