Affiliations: Research Institute of Energy Utilization, AIST,
Tsukuba, Ibaraki, 305-8564, Japan. Tel: +81-298-61-7247; Fax: +81-298-51-7523;
E-mail: [email protected] | University of Tokyo, Ibaraki, Japan
Abstract: A three-dimensional shape measurement system with only one camera
and a rotating periscope is proposed. Many images are captured at every few
degrees of periscope rotation. The distance along the optical axis of the
camera from the focal point of the camera system to a certain point along the
object surface is inversely proportional to the parallax. In this system, a
circular streak is obtained by tracing a point on each image using the
cross-correlation along the direction of periscope shift. The parallax can be
calculated from the radius of the streak. Applying this method to shape
measurement of the human face from synthetic images, the images were well
reconstructed and the proposed system may be adaptable to a portable 3D shape
acquisition system.