Ultraedge

The decision Review System (DRS) is something that always comes under the scanner in a professional match in one way or the other. Due to it being a very complex system, most people don't always get what they see on the replays. 

Warren Brennan is the founder and chief technology officer of BBG Sports where he developed the Hotspot/RTS system for spotting edges with Allan Plaskett. In a Cricketingview podcast, Brennan explained how exactly the system works and why we see what we see on the TV.