The commercial on NBA Premium TV stated that this technology is called FreeD Video powered by Intel. According to Intel news, this technology is applied last NBA All-Star game, a partnership between the NBA and Turner Broadcasting.
This technology is equipped in San Antonio Spurs, Golden State Warriors and Cleveland Cavaliers stadiums. With Twenty-eight high-definition cameras positioned around the arenas. All of the cameras can capture video and compiled into one shot.
I think this technology is a big help in all sports event in the world.