On-Line 3D Geometric Model Reconstruction

Authors:
H. Zolfaghari;K. Khalili
Affiliations:
Computer Engineering Department, Islamic Azad University, Birjand, Iran;Mechanical Engineering Department, University of Birjand, Iran
Venue:
ICCS '08 Proceedings of the 8th international conference on Computational Science, Part II
Year:
2008

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Abstract

Triangulation techniques along with laser technology have been widely used for 3D scanning, however, 3D scanning of moving object and on-line modeling have received less attention. The current work describes a system developed for on-line CAD model generation using scanned data. The system developed uses structured laser light pattern and a digital CCD camera to generate and capture images from which the range data is extracted. The data is then analyzed to reconstruct the geometric model of the moving object. To exploit the potential of a geometric modeler the model is represented in a commercial CAD software. To reduce errors the system employs on-line calibration, light distribution correction algorithm, camera calibration, and subpixeling techniques. A data reduction scheme has also been incorporated to eliminate redundant data.