Hawk-Eye

Common card · No. 236186

Hawk-Eye is a computer vision system used to visually track the trajectory of a ball and display a profile of its statistically most likely path as a moving image. It is used in more than 20 major sports, including baseball, cricket, tennis, badminton, hurling, rugby union, soccer, Gaelic football, American football, and volleyball. The Sony-owned Hawk-Eye system was originally developed in the United Kingdom by Paul Hawkins. The system was first implemented in 2001 for television broadcasts, where it was used to analyze leg before wicket decisions in cricket. It works via the use of up to ten high-performance cameras, normally positioned on the underside of the stadium roof, which track the ball from different angles. The video from the cameras is then triangulated and combined to create a three-dimensional representation of the ball's trajectory. Although not infallible, Hawk-Eye is advertised to be accurate to within 2.6 mm (100 thou). Hawk-Eye is increasingly used as an impartial review...

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