A system having a video display screen that provides video to a user. The position
of the display screen is adjustable based upon the location of the user with respect
to the display screen. The system includes at least one image capturing device
trainable on a viewing region of the display screen and coupled to a control unit
having image recognition software. The image recognition software identifies the
user in an image generated by the image capturing device. The software of the control
unit also generates at least one measurement of the position of the user based
upon the detection of the user in the image.