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New Technology used inNew Technology used in

sportssports 

By

  R.Abishek

  K.ChaithanyaKumar

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Hawk-Eye is a computer system usedin cricket, tennis, snookers and other sports tovisually track the path of the ball and displaya record of its most statistically likely path asa moving image

Hak!"ye as the most innovative technology

provider in sports broadcasting and is adevelopment that ill reinforce the group#spresence and in$uence. 

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• %t is primarily used bythe ma&ority oftelevision netorks totrack the tra&ectory ofballs in $ight.

• %t as developed byengineers at Roke 'anorResearch (imited of )Kin *++

•  A patent as submittedby -r aul Hakins and-avid /herry.

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Hawk-eye can trackany type of bounce,spin, sing and seammovement of the ball.

0ive a prediction asaccurate as 11.11percent

Hak!"ye as used forreferring decisions tothe third umpire in(B2.

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A Hak!"ye system isbased on the principleof 34riangulation3

Triangulation is theprocess of determining thelocation of a point bymeasuring angles to it

from knon points ateither end of a 56edbaseline

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Hak!"ye takes * inputs

. 7ideo provided by 8di9erent camerasplaced at 8 di9erent

places.

*.  4he speed of the ball.

 4he system rapidlyprocesses the videofeeds by a highspeed video processor.

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Hak "ye incorporates both image analysis andradar technology.

 4he si6 56ed :A% monochrome cameras, ith a*+ 'H; frame rate, are placed around theplaying 5eld

 4hey track the ball

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=a> identify each frame fromeach camera, and groupsthe corresponding pi6els

to the image of the ball

=b> compute for each framethe ?- position of an

image thus identi5edusing ball image data fromat least to di9erentcameras

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=c>predict a ball $ight!path from the said ?-ball position ascomputed in

successive frames

=d> map the predictedpath on the modeled

area so as to identifyany interaction ithone or more of thesaid characteristicfeatures

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 4he cameras are used in to sets, and a multi!channel frame grabber handles each set ofcameras.

 4he images captured are then processed bysoftare to produce a ?!- image.

 4his is updated ++ times every second.

 4he system is able to locate the ball in ?!- and canpredict the motion ith a claimed accuracy of @mm

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•  4he system generates agraphic image of theball path and playing

area by using hichumpires take decisions.

•  4he same can beprovided to thetelevision vieers andcoaching sta9.

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%ts applications are mainly insportsCricket 4ennis/nookers and%n some games

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)sed in the third umpire decision=Referral system>

At the end of an over, all si6 deliveries are shonsimultaneously to sho a boler#s variations suchas bounce, speed variations and ball deviation.

 4o vie the deviation of the ball from actual track.

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Hak!"ye as 5rst used in tennis in the year*++=)/ open tennis>.

%n tennis Hak!"ye generates the impact ofthe ball hether the ball is %3 or D)43

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 4his technology is useful in cases here the cueball touches the speci5ed ball 5rst or any otherball.

/ome games such as Brian (ara Cricket*++@3also support this technology.

0ames0ames

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 4his technology has met the high reality andaccuracy features.

Hak!"ye is currently developing a systemfor Football

 4his technology helps to have correctdecisions in any kind of game.

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