Patent ID: 7440691

Claim:
A computer connected to a plurality of photographing devices and a turn table on which a photographing target is set up, said computer comprising: a turn-table control unit for rotating said turn table on the basis of a rotation angle inputted, a photographing unit for performing a photographing every time said turn table is rotated, and acquiring images of said photographing target from said plurality of photographing devices, a coordinate-system setting unit for setting a coordinate system, position of an extracted feature point of said photographing target being defined as reference of said coordinate system, a viewpoint-parameter calculation unit for calculating viewpoint parameters on the basis of said coordinate system set by said coordinate-system setting unit and camera parameters including focal lengths and set-up positions of said photographing devices, said viewpoint parameters including position data for indicating said position coordinates of said photographing devices and direction data for indicating directions in which said photographing devices are oriented, and a correspondence-data storage unit for storing said images and said viewpoint parameters in a manner of being made correlated with each other, said images being acquired by said photographing unit, said viewpoint parameters being calculated by said viewpoint-parameter calculation unit, wherein said photographing unit photographs a first posture and a second posture of said photographing target, said coordinate-system setting unit setting a first coordinate system in said first posture and a second coordinate system in said second posture, said viewpoint-parameter calculation unit converting a viewpoint parameter in said second coordinate system into a viewpoint parameter in said first coordinate system on the basis of a difference between said first coordinate system and said second coordinate system.