a camera device and a display device are configured to enable changing direction of capturing a stereoscopic image using a camera pair , according to an operator &# 39 ; s motion . the camera device includes a rotatable camera base on which the stereoscopic camera pair is mounted , a motor configured to rotate the camera base , and a communication interface arranged to receive a movement signal corresponding to the operator &# 39 ; s motion . the display device transmits the movement signal to enable the camera device to align the image capture direction with the operator view , receives stereoscopic images covering more than the operator view from the camera device , and displays a sector of the stereoscopic images corresponding to the operator view .