Speed measurement method and apparatus

摘要

A method and apparatus for measuring a speed of an object is provided. The speed is measured by taking a video of said object moving across a span. The object may be a baseball thrown from the pitcher's mound to home plate. The invention may include a device that with a video camera, a display screen and a control interface. The device generates a video of the object moving from a start point to an end point. The video frames for the start point and the end point are identified and the time span between the start frame and the end frame is determined. A distance between the start point and the end point is also determined. The speed of the object is then calculated from the time span and the distance. The information may then be displayed including a path trace and the calculated speed.

主权项

1. A method for measuring a speed of an object comprising the steps of:
a. taking a video of said object moving across a span; b. displaying a first frame of said video wherein said object it at a start point; c. designating said first frame as said start frame; d. displaying a second frame of said video wherein said object is at an end point; e. designating said second frame as said end frame; f. calculating a time difference between said start frame and said end frame.