At the very least, I will never get work done again.

I imagine one day they will be doing batted ball data also.

Before groundskeepers work on the mound and plate areas during the afternoon preceding a typical night game, a crew is on the field placing spiked and colored/numbered markers on the first- and third-base lines, as well as a marked eight-foot pole at home plate. That is called the “registration” process and is captured by three field cameras — high home, high first base and center field — so that the information is then stored into the truck computer software to create the “grid” that will allow the game’s pitch-tracking to happen.

The center-field camera is used for two purposes, most important for “sizing” the batter. For the software to find the ball (or “blob” to the engineers who plot the application), there needs to be a different plane of location for Matt Holliday than for Kazuo Matsui, who is smaller in stature than Holliday. Then the crew in the truck sizes each player during batting practice, so that during the game each tracking plane is pre-set; it is remembered for each subsequent at-bat by that player.

According to Kurt Meyer, a broadcast engineer for SportVision, a technology partner with MLBAM, “a guy stands at home plate with the eight-foot pole and marker, and then the software takes about 20 minutes to snap the grid into place. That tells each of the computers where home plate is in relationship to the three cameras, so they’re all on the same page. You’re telling the computer to look for a certain object between parameters of speed … a blob traveling between the mound and the plate.”

The pitch-tracking system is set from 40 mph to 120 mph. That prevents the system from picking up, say, an empty popcorn bag floating past a camera. Manual intervention also comes into play in the occasional event that a third baseman will charge in on a batter who has squared around to bunt while a pitch is being thrown. The player is moving fast enough to enter that location plane, so the grid on the software must occasionally be dragged to the proper dimensions to adjust.

http://mlb.mlb.com/news/article.jsp?ymd=20071002&content_id=2245402&vkey=news_mlb&fext=.jsp&c_id=mlb

Also, it looks like his changeup and fastball have similar trajectories with the changeup having more tail into right handed hitters.

His sinker is nothing like it once was in Colorado, though.

fun to look at this stuff. Frankie has honed his pitch selection and improved the movement over the last 2+ seasons.