JohnYandell
Hall of Fame
Pete,
it's not that comprehensively unified as we were shooting on Arthur Ashe year 1, exciting and chaotic but we got a lot that had never been recorded before--not sure you could do that much with it, but... We have average rpms. and range of rpms off the racket--those came from frame by frame analysis of high speed video. And corresponding average velocities off the racket--those came from the radar guns. We have some data on spin after the bounce and how much surprisingly the bounce increased rpms. We have some data on the deceleration of speed over the flight of the ball from another study of Sampras (also the first of it's kind in live play...) It's in the Heavy Ball section of Tennisplayer. You can sign up for a free month read it and cancel with no charge should you desire. If you want to discuss, email me at videotennis@metricmail.com I might give you a password...
it's not that comprehensively unified as we were shooting on Arthur Ashe year 1, exciting and chaotic but we got a lot that had never been recorded before--not sure you could do that much with it, but... We have average rpms. and range of rpms off the racket--those came from frame by frame analysis of high speed video. And corresponding average velocities off the racket--those came from the radar guns. We have some data on spin after the bounce and how much surprisingly the bounce increased rpms. We have some data on the deceleration of speed over the flight of the ball from another study of Sampras (also the first of it's kind in live play...) It's in the Heavy Ball section of Tennisplayer. You can sign up for a free month read it and cancel with no charge should you desire. If you want to discuss, email me at videotennis@metricmail.com I might give you a password...