Hawk-Eye

• “As well as the instant replays that have been available for years, the DRS involves two main technologies: Hot Spot, which uses infrared cameras to detect whether, for example, the ball has brushed the edge of the bat before being caught by a fielder; and ball-tracking, usually in the form of a technology called Hawk-Eye, which tracks and predicts the path of the ball, and is used in judging whether a batsman should be ruled out leg-before-wicket.”

  The Wall Street Journal: Cricket Should Rule on Reviews, and Not Look Back

• “This 2.5m guideline is designed to allow for the inaccuracies in the Hawk-Eye system.”

  The Guardian: We must stop all this tinkering with the umpire review system | Duncan Fletcher

• “If it is saying that Hawk-Eye is no good over 2.5m, then the ICC should not let the broadcasters use it in those circumstances, because it will only confuse the issue, as it did when Bell was recalled to the middle after walking most of the way back to the dressing room.”

  The Guardian: We must stop all this tinkering with the umpire review system | Duncan Fletcher

• “It is not just about whether Hawk-Eye says the batsmen was out or not.”

  The Guardian: We must stop all this tinkering with the umpire review system | Duncan Fletcher

• “That was before Hawk-Eye had been invented, but the principle of the thing was still similar to the UDRS: players would be able to challenge three decisions in each innings by asking for them to be referred to the third umpire, who would have the benefit of TV replays to work with.”

  The Guardian: We must stop all this tinkering with the umpire review system | Duncan Fletcher

• “Among those in the running are Hawk-Eye and Cairos, who have both delivered presentations to Fifa officials in the past.”

  The Guardian: Fifa ready to adopt goalline technology

• “Due to the increase in humidity when the roof is closed, balls are heavier and travel slightly slower through the air," Pete Irwin, one of Hawk-Eye's experts at Wimbledon this week, said.”

  The Wall Street Journal: Wimbledon Roof Slows Balls Down

• “Hawk-Eye shows that a 122mph serve was reaching Ryan Sweeting, his opponent under the roof yesterday, 4mph slower than it had against Michael Russell outdoors on Monday.”

  The Wall Street Journal: Wimbledon Roof Slows Balls Down

• “But Hawk-Eye shows that by the time the serve had reached her opponent it had lost as much as 5mph when the roof was shut.”

  The Wall Street Journal: Wimbledon Roof Slows Balls Down

• “The measurable slowing of the ball under the roof is indisputable thanks to another technological advance—Hawk-Eye.”

  The Wall Street Journal: Wimbledon Roof Slows Balls Down

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