PURPOSE: To enhance the accuracy in the case of obtaining a three-dimensional information and a highly accurate image.

CONSTITUTION: This device has a processing means processing information 1 10, 210 on the subject obtained from first and second image pickup systems imaging a common object. The processing means is provided with an interpolation processing part 14 for detecting a virtual image point in the image obtained from the second image pickup system corresponding to the image point in the image obtained from the first image pickup system regarding the object point of the object which is imaged by the first image pickup system and is not imaged by the second image pickup system.