If you are going by-the-book strike zone, the top and bottom would have to be customized for every hitter. Not sure how you would do that with an automated system, but certainly it could be called better than it now is, where the high by-the-book strike is usually considered a ball.
Freegards
There’s various sensors you can build right into the uniform that are directional. Really between directional sensors and touch plates just about everything in baseball could be automated.