The significance of Hawkeye in tennis is to overcome the limitations and blind spots of human observation ability and help referees make accurate and fair judgments.
Hawkeye, also known as instant playback system, is a powerful auxiliary tool for the accuracy of referee's penalty. The principle of this technology is not complicated, but it is very accurate. This system consists of eight or 10 high-speed cameras, four computers and a big screen. The system is divided into several steps. Firstly, with the help of computer calculation, the three-dimensional space in the competition venue is divided into measurement units calculated in millimeters; Then the basic data of tennis flight trajectory are captured from different angles by high-speed camera at the same time; Then through computer calculation, these data are generated into three-dimensional images; Finally, using real-time imaging technology, the movement route and landing point of tennis can be clearly displayed on the big screen. From data collection to result presentation, the time spent in this process does not exceed 10 second.
Because tennis moves very fast in the air, after landing, players often have disputes about whether the ball falls inside or outside the line. Hawkeye technology is a powerful auxiliary tool for the accuracy of referee's penalty, through which some disputes can be effectively eliminated.
Eagle Eye Technology:
Eight high-resolution fast black-and-white cameras were placed around the stadium.
Position of the ball: Use software to calibrate the sideline of the court, so that the trajectory of the tennis ball can be displayed on the screen after being captured by various cameras.
3D technology is used to simulate tennis, and the imaging is based on the materials captured by three cameras designed in the "corner position".
Influence generation process: images are obtained from each camera at the speed of 2000 frames per second and transmitted to the main control computer.
After each frame is calibrated, the running route of tennis ball is determined, and the landing bounce point of the ball running along this trajectory is calculated to ensure that the error is controlled within 3 mm
Hawkeye technology is usually used in TV broadcasting. As early as the beginning of 200 1, this technology won the scientific and technological innovation award of the Royal Television Association, and in 2003, it won the Emmy Award, the highest award in American television for its wide application in tennis broadcasting. For professional tennis players, it is a significant innovation to introduce eagle-eye technology into tennis spot penalty, which is comparable to the introduction of tiebreak system 36 years ago. The player's request to watch the replay of Hawkeye is a dissatisfaction with the referee's penalty and a challenge to the referee's authoritative position on the court.