Hawk-Eye in Cricket

The engineering was initially utilized by Channel 4 amid a Test match in the middle of England and Pakistan on Lord's Cricket Ground. It is utilized basically by the larger part of broadcasting companies to track the trajectory of balls in flight. The third umpire could take a gander at what the ball really did up to the moment that it hit the batsman, however couldn't take a gander at the anticipated flight of the ball after it hit the batsman. Its real use in cricket television is in breaking down leg before wicket choices, where the feasible way of the ball might be anticipated forward, through the batsman's legs, to check whether it would have hit the stumps. Counsel of the third umpire, for ordinary moderate movement or Hawk-Eye, on leg before wicket choices, is as of now endorsed in global cricket despite the fact that questions stay about its correctness in cricket.

The Hawk-eye referral for LBW choice is focused around three criteria:

• Where the ball pitched
• The area of contact with the leg of the batsman
• The anticipated way of the ball past the batsman
• In every one of the three cases, negligible calls bring about the on-field call being kept up.

Because of its real time scope of rocking the bowling alley speed, the frameworks are likewise used to show conveyance examples of bowler's conduct, for example, line and length, or swing/turn data. At the end of an over, every one of the six conveyances are frequently indicated all the while to demonstrate a bowler's varieties, for example, slower conveyances, bouncers and leg-cutters. A complete record of a bowler can additionally be indicated throughout the span of a match. Batsmen likewise profit from the examination of Hawk-Eye, as a record could be raised of the conveyances batsmen scored from. These are frequently indicated as a 2-D silhouetted figure of a batsmen and color coded specks of the balls confronted by the batsman. Data, for example, the accurate spot where the ball pitches or pace of the ball from the bowler's hand can additionally help in post-match dissection.

Hawk-Eye

Hawk-Eye is a complex computer system employed formally in several sports such as cricket, tennis, Gaelic football, hurling and association football, to visually follow the trajectory of the ball and display a record of its most statistically probable path as a moving image.

Hawk-Eye was built in the United Kingdom by Dr Paul Hawkins. The system was initially implemented in 2001 for television uses in cricket. The system works via six (sometimes seven) high-performance cameras, usually placed on the underside of the stadium roof, which track the ball from different angles. 

The video from the six cameras is then triangulated and combined to generate a three-dimensional representation of the trajectory of the ball. Hawk-Eye is not perfect and is accurate to within 5 millimeters (0.19 inch) but is normally trusted as an neutral second opinion in sports.