Yes they are, the NBA has cameras mounted in the rafters for this specific purpose source: https://www.washingtonpost.com/sports/wizards/nba-analytics-movement

Yes they are, the NBA has cameras mounted in the rafters for this specific purpose source: https://www.washingtonpost.com/sports/wizards/nba-analytics-movement-includes-placing-six-cameras-in-rafters-at-all-30-team-arenas/2013/10/25/ac9fc826-3d7a-11e3-b0e7-716179a2c2c7_story.html https://www.washingtonpost.com/sports/wizards/nba-analytics-... company behind the tech: http://www.stats.com/sportvu/sportvu-basketball-media/ http://www.stats.com/sportvu/sportvu-basketball-media/