Patent ID: 11941852
Assignee: KAZUSA DNA RESEARCH INSTITUTE
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 5:
6. A three-dimensional measurement method comprising:
receiving data of multiple photographic images, the photographic images being obtained by photographing a measurement target object and a random dot pattern from multiple surrounding viewpoints by use of a camera;
selecting three or more camera positions surrounding the measurement target object, from among multiple positions of the camera from which the multiple photographic images are taken;
selecting the photographic images as stereoscopic images from among the photographic images taken from the selected three or more camera positions; and
calculating the camera position from which the stereoscopic images are taken, by a method of intersection and resection using the stereoscopic images, wherein
the selection of the camera positions is performed multiple times in such a manner that at least one different camera position is selected each time,
the random dot pattern is formed on a surface of a longitudinal member that stands upward and is fixed on a table on which the measurement target object is placed, and
the longitudinal member has a height greater than a height of the measurement target object placed on the table.