A Mirahmadi - PHD in Mechanical Engineering. Assistant Prof., IUST, Tehran, Iran
A Farshchian Sadegh - M.Sc Degree in Manufacture Engineering. IUST, Tehran, Iran
H Khadivi Haris - B.SC Degree in Mechanical Engineering, IUST, Tehran, Iran

In this paper, a flexible structured light-based system for accurate 3D object measurement is reported. The system consists of a slide projector, a digital camera and a turning table. The Camera calibration is implemented automatically by taking only a single image from a calibration template. A robust edge detection method is used to determine light stripes positions with subpixel resolution in the image. Reconstruction algorithms have been selected to fulfill the processing speed demanded in industrial applications. The real measurement results show that the system has high accuracy and good repeatability.

Calibration, Structured Light, Subpixel, 3D Reconstruction