METHOD AND DEVICE FOR MEASURING THREE-DIMENSIONAL SHAPE OF CULTURAL PROPERTY, SCULPTURED WORK OR THE LIKE

摘要

PROBLEM TO BE SOLVED: To provide a method and device for measuring the three-dimensional shape of a cultural property, a sculptured work or the like, in which an image of a measuring object can be precisely reproduced with a small size at low cost in spite of using a concave reflector, whereas in a conventional three-dimensional shape measuring device composed of a telecentric optical system using the concave reflector, the usable aperture is about 1/3 or less because the measuring object cannot be placed in the center part of the concave reflector. SOLUTION: The concave reflector is inclined so that the incoming optical axis and outgoing optical axis of the measuring object image to the concave reflector constituting the telecentric optical system are differed, whereby the optical system is constituted so that an imaging device does not overlap with the measuring object when seen from the concave reflector. COPYRIGHT: (C)2005,JPO&NCIPI