Excerpt from a fascinating article:
"A NEW CAMERA SYSTEM IS ADDING A WHOLE NEW LEVEL OF ANALYTICS TO BASKETBALL. WE [Fast Company!] TALK TO INSIDERS USING IT.
The technology was originally developed to track missiles. Now, SportVU systems hang from the catwalks of 10 NBA arenas, tiny webcams that silently track each player as they shoot, pass, and run across the court, recording each and every move 25 times a second. SportVU can tell you not just Kevin Durant’s shooting average, but his shooting average after dribbling one vs. two times, or his shooting average with a defender three feet away vs. five feet away. SportVU can actually consider both factors at once, plus take into account who passed him the ball, how many minutes he’d been on the court, and how many miles he’d run that game already.
THEIR SYSTEM CAPTURES THE X/Y COORDINATES OF ALL THE PLAYERS 72,000 TIMES A GAME...."