Ask Slashdot: Project Scope For MLB Robot Umpires?

nightcats writes "The League Championship Series of baseball are upon us, and numerous sports media pundits, armies of fans at comment boards, and TV people are openly debating the possibility of robot umpires coming to Major League Baseball, to either replace or enhance the human umps' work on the field. Question: what kind of project are we reasonably talking about here? What would the scope and length be from planning/design to user testing/implementation (presumably in a spring training/minor league setting)? What kinds of hardware (video scanners, touch-sensitive bases/foul lines, etc.) and software would be required?" And, as long as we're on the subject — do you think it would be good for the game?

Everyone said it would ruin tennis...

[PRMan]

But all that's changed in tennis is McEnroe's endless rants about bad line calls. Tennis has never been better. Umpires should still call out/safe calls, but ball/strike should have been given to a computer long ago, especially seeing what an inconsistent job the umps do at it.

Good for balls and strikes

[Anonymous Coward]

Most broadcasts now have a "pitch zone" and you can watch the umps get it wrong regularly enough that robotic calls and strikes could be useful.

The strike zone *is* subjective, though.

[Zebraheaded]

(goddamn it, I wasn't logged in) The official rule: Strike Zone is the area over home plate, the upper limit of which is a horizontal line at the midpoint between the top of the shoulders and the top of the uniform pants, and the lower level is a line at the hollow beneath the knee cap. The Strike Zone shall be determined from the batter’s stance as the batter is prepared to swing at a pitched ball. What if the robot can't see the top of my pants? (My shirt is loose and blouses over) What if my shoulders are angled? (Where's the 'top'?) What if I have loose pants and a locked knee stance? (Where's my knee, and thus the hollow below the cap?) When does the robot determine the boundaries of the zone? (If it's at the windup, I'll crouch during it then stand up. If it's as the pitch comes in, I'll squat on high strikes) A living, breathing umpire makes all these subjective decisions on every pitch. There's no way to trick the umpire into giving you a smaller or undefined strike zone. You have to keep umpires, even if there's instant replay. For another example: on a large fraction of 6-4-3 and 4-6-3 double plays, the infielder making the play at second base doesn't actually tag the bag. Umpires are very generous on the player touching the base on the turn. Relying on a robot to make that call would be incredibly disruptive with the way that call has been made for over a century.

Re:The strike zone *is* subjective, though.

[pwileyii]

To comment on a point you made on the double play, the umpires allow the player to not touch the base to avoid injury from the incoming base runner. In the umpires judgment, the player would need to have been able to touch the base. Players, umpires, and managers all agree on this point and would rather short cut the touching of the base than risk a serious injury to a player.