Hawk-Eye System

What is Hawk-eye system?
Who invented Hawk-eye?
History of Hawk-eye System.
How it works?
What is principles of triangulation?
Flow of working.
In cricket , In tennis , In associated football , In badminton.
Then what are software requirements?
Advantage and Disadvantage.
Conclusion.

1. Hawk-Eye System

2. Contain What is Hawk-eye system? Who invented Hawk-eye? History of Hawk-eye System. How it works ? What is principles of triangulation ? Flow of working. In cricket , In tennis , In associated football , In badminton . Then what are software requirements ? Advantage and Disadvantage . Conclusion.

3. Who invented Hawk-eye?? It was developed by engineers at Roke Manor Research Ltd in Romsey, England, in 2001. The patent is held by Paul Hawkins and David Sherry . Dr.Paul Hawkins who used to be a cricketer and played for country side Buckinghamshire. He has PHD in artificial intelligence.

4. What is Hawk-eye system?? Hawk-Eye  is a complex computer system used officially in numerous sports such as cricket, tennis, football, badminton, hurling, Rugby Union, association football and volleyball, to visually track the trajectory of the ball and display a record of its statistically most likely path as a moving image.

5. History of Hawk-eye System… The system was first used during a Test match between Pakistan and England at Lord’s Cricket Ground, on 21 April 2001 It was first used in Tennis in the 2006 US Open.

6. So, basically this system is in the field of Cricket Tennis Association Football Snooker Australian football Badminton Computer games

7. How it works? All Hawk-Eye systems are based on the principles of triangulation using visual images and timing data provided by a number of high-speed video cameras located at different locations and angles around the area of play. The system rapidly processes the video feeds from the cameras and ball tracker. A data store contains a predefined model of the playing area and includes data on the rules of the game.

8. Now what is principles of triangulation? Hawk-Eye system is based on the principle of ‘triangulation’. Triangulation is the process of finding the location of a point by measuring the angles between the point and other points which are fixed.

9. The Hawk-Eye system consists of two significant parts: The Tracking System which contains a camera and speed gun, and The Video Replay System, which tracks the data to help referees make decisions, and help coaches and players to analyses their game.

10. Flow of working.. Camera calibration Start processing Ball recognition Geometry algo . 3D position of ball Track of the ball Predicted flight of ball

11. In cricket The system automatically calculates the following information: The speed of the ball leaving the bowler’s hand. The swing of the ball from the bowler’s hand to its ‘pitch’, or bounce How much the ball has bounced How much the ball spun sideways off the wicket A prediction of where the ball would have passed the stumps

12. In tennis Hawk-Eye cameras are placed high above the court to track the ‘trajectory’ (or path) of the ball. It can point out the bounce of the ball up to the precision of 3.6mm. The cameras record the movement of ball at the rate of 100 frames per second. The Hawk-Eye System can incorporate more video replay cameras for analysis from different angles, which can be controlled remotely. The video is captured and stored digitally on hard disks.

13. In Association football Hawk-Eye is one of the goal-line technology (GLT) systems authorized by FIFA. Hawk-Eye tracks the ball, and informs the referee if a ball fully crosses the goal line into the goal. The purpose of the system is to eliminate errors in assessing if a goal was scored.

14. In badminton

15. Then what are software requirements? There are three types of software for the Hawkeye range: real-time data acquisition ‘ Onlooker Live ’ and office-based analysis software ‘ Processing Toolkit ’ and ‘ Data Viewer .’ All software in the Hawkeye suite is Windows based, using the very latest intuitive tools to make analysis of the data an efficient and easy task.

16. Advantages. It gives a prediction as accurate as 99.99 percent. It’s a very effective system which works in real time. It minimizes the chances of human error in decision making. It helps players to study their past games and improve.

17. Disadvantages. The system is very expensive. The system needs complex arrangements. Sometimes Hawk-Eye struggles with predicting the trajectory of a cricket ball after it bounces while spinning. Sometimes it challenges umpires dignity.

18. Conclusion This technology helps referees and other umpires to make the correct decisions in any kind of game. It is a great tool which can be used by players and coaches to analyses previous games and come up with strategies for future ones. However it is very difficult and complicated to set up, and very expensive. This means it can only really be used by very big and important sporting organizations, and can’t really be used by smaller sports or teams. If we can find a way of making Hawk-Eye cheaper and easier to use, it will be very useful for many sports.

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