PURPOSE: To easily determine an optimum view point position by the camera view point change system which becomes necessary at the time of inspecting operation by a robot arm, etc.

CONSTITUTION: This system consists of a camera 1, a camera operating means 2 which controls the camera position, a camera image display means 3, and a gazing point specifying means 4 which specifies a gazing point on an image. The same gazing point P is specified from different view points and the relative position of the gazing point P is measured; and the camera 1 is moved to the position where the view direction matches the direction of the gazing point P on a spherical surface 5 which centers on the gazing point P and is at a constant distance and a shift in the camera position is specified on the spherical coordinate system on the spherical surface 5 having its origin at the gazing point P.