When an on-field umpire turns down a run-out appeal, the third umpire must perform a minute frame-by-frame search of the batter's bat or body behind the popping crease at the moment the wickets are broken. This is how the synchronising of multiple camera angles over their framerate is able to generate a positive identification of a batter's offending limb within a certainty threshold ... https://todaymatches.in/