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The system can also interpret these interactions to decide infringements of the rules of the game.

All Hawk-Eye systems are based on the principles of triangulation using the 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 by a high-speed camera and ball tracker.

A data store contains a predefined model of the playing area and includes data on the rules of the game.

In all three cases, marginal calls result in the on-field call being maintained.

Due to its realtime coverage of bowling speed, the systems are also used to show delivery patterns of bowler's behaviour such as line and length, or swing/turn information.

On 14 June 2006, a group of investors led by the Wisden Group bought the company, who included Mark Getty, a member of the wealthy USA family and business dynasty.

The acquisition was intended to strengthen Wisden's presence in cricket, and allow it to enter tennis and other international sports, with Hawk-Eye working on implementing a system for basketball.

Its major use in cricket broadcasting is in analysing leg before wicket decisions, where the likely path of the ball can be projected forward, through the batsman's legs, to see if it would have hit the stumps.

Consultation of the third umpire, for conventional slow motion or Hawk-Eye, on leg before wicket decisions, is currently sanctioned in international cricket even though doubts remain about its accuracy in cricket.

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Hawk-Eye is a complex computer system used officially in numerous sports such as cricket, tennis, Gaelic 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.

Hawk-Eye was developed in the United Kingdom by Paul Hawkins.