Design And Implementation Of Automatic Tracking Sysrem For Cross-Country Skiers

Snow and ice sports are a traditional sport in northern China.With Beijing’s successful bid for the 2022 winter Olympics,the intense preparations for the games have been put on the agenda.In this paper,the tracking problem of target skiers is studied in the part of the intelligent monitoring system under the background of the construction of the training and command system of the intelligent snowfield in the Yabuli cross-country ski resort.The problem of tracking ground target skiers by surveillance cameras refers to the automatic tracking of target skiers by cameras equipped with cloud platforms.On the premise that the command and control system can control the position of the ball camera,the movement state of the target athletes is predicted.The specific implementations are as follows:First of all,consider the requirements analysis of the intelligent cross-country skiing training and commanding system.From the aspects of establishing facilities,expound the monitoring and commanding system,the live video transmission system and the positioning system.Then analyze the components and overall framework of the intelligent skiing training and commanding system and design the database.Then,on the premise that skiers are equipped with GPS positionin g module,gaussian projection and coordinate transformation are used to obtain the position information of skis in the space.By analyzing the relative motion relationship between the camera and the target athletes,the mathematical model of the camera tracking athletes is obtained.And establishing the skiing athletes based on time series model of state equation and observation equation,and design the kalman filter for skiing athletes,the author estimated the motion state of verify the filtering effect.Finally,the state estimation of skiers is made by means of monocular visual measurement.Apply object detection method based on end-to-end deep convolutional neural network to detect target player position in the image coordinate system,then on the condition that calibrating the inner parameter matrix and the outer parameter matrix of our cameras,using monocular vision method to calculate target player’s position and velocity,and verify the feasibility of playe’s state estimation based on vision.