Patent ID: 9684056
Date: 2017-06-20
CPC Classifications: G01S,H04N

Claim:
1. An automatic ball tracking camera for taking video images of a ball game, the camera comprising: a two-stage video camera unit including two sets of camera modules, each camera module including a video camera, a zoom lens fitted on the video camera, a zoom drive mechanism for changing a zoom magnification, and a pan-tilt pod on which the video camera is mounted for changing a viewing direction of the video camera; a video switcher configured to receive two video signals from the two video cameras and select one of the two video signals as output; an image processor configured to receive one of the two video signals currently in use for output, analyze an output video image corresponding to the video signal currently in use for output, and determine whether a ball position moves out from a preset area defined on the output video image; and a controller configured to, when the image processor determines that the ball position moves out from the preset area,