PROBLEM TO BE SOLVED: To restore relative motion of an object shape and a camera at high speed with high accuracy. SOLUTION: A restoring device is composed of an object shape input means 1 to input an object shape to a visual point coordinate system at a different visual point, a shape-motion restoring means 2 to repeatedly find an object shape and camera motion to a world coordinate system while increasing the visual point number and an output means 3 to output a restored object shape and camera motion.
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