1
Thomas M Harris: Baseball-strike indicator and trajectory analyzer and method of using same. Francis X LoJacono, October 8, 1985: US04545576 (84 worldwide citation)

An apparatus and method to compute the trajectory of a moving object by remote, non-interfering sensors. The particular application computes the trajectory of a pitched baseball throughout its flight, including the ball's trajectory as it passes in the vicinity of a three-dimensional strike zone. Th ...


2
AUTOMATED OR ASSISTED UMPIRING OF BASEBALL GAME USING COMPUTER VISION. SportsMEDIA Technology Corporation, February 7, 2019: US20190038952-A1

Methods and systems for use in automating or assisting umpiring of a baseball or softball game are described herein. A location of a strike zone is determined based on video images of a batter standing next to home plate captured by a camera. Locations of a ball traveling towards the batter, and loc ...