Indian batsman KL Rahul’s wicket on the first day of the first Test match of the Border-Gavaskar Trophy (BGT) 2024 between India and Australia has once again raised questions about the Decision Review System (DRS). In the recently played test match between India and New Zealand, questions were raised on the technology of DRS in Rishabh Pant’s wicket. Many veteran cricketers said that despite such advanced technology, sometimes the umpire faces difficulty in taking the right decision. Come on, let’s know about the technology used in DRS…
DRS (Decision Review System)
DRS was first used in Test matches in 2008, ODIs in 2011 and T20Is in 2017. This system is used by any team to challenge a decision given by an on-field umpire. When a decision given by an umpire is challenged, a third umpire uses technology to verify whether the given decision should be upheld or changed.
DRS technology
In DRS, TV umpires mainly use three types of technology – Hawk Eye, Real Time Snico and Hot Spot.
Hawk Eye – It is also called the virtual eye of the TV umpire. In this, using ball tracking technology, after the bowler has bowled the ball, the trajectory is seen to see if the ball has stopped the ball on the wicket line. This technology is used for LBW determination.
Real Time Snico – It is also called Ultrage. In this, using a microphone, it is known whether the ball has touched the pad or the bat first or not. It creates audio spikes through the voice in real time, which helps the umpire to make the right decision.
Hot Spot – It uses infrared imaging technology, which tells where the ball has made contact with the bat or pad. An advanced camera system is installed for infrared imaging.
In DRS, television replays look at whether the ball hits the bat or where the ball is pitched and whether it hits the wicket. In which videos taken from different angles with high definition cameras are analysed. Apart from this, ball tracking technology is used to know the direction of the ball. Not only this, the TV umpire checks whether the ball has touched the edge of the bat or not through the sound of a microphone mounted on the stump. Also, the contact mark between the ball and the bat is checked by infrared imaging.
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