Share Email Print

Proceedings Paper

Spherical/cylindrical laser scanner for geometric reverse engineering
Author(s): Vincent H. Chan; Medhat Samaan
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Laser scanners are often used in geometric reverse engineering to generate a CAD drawing out of an existing physical part. This often requires careful path planning to ensure the correct stand-off distance of the sensor, to prevent any collisions of the sensor with the target object and to prevent any scan occlusions in the resulting data. A dedicated system was constructed to collect data using a 3-axis cylindrical/prismatic device. The benefit of this scanning system is the ability to scan completely around the target object, including the bottom of the object. A stripe-type laser diode is used along with a CCD camera. The target object sits on a transparent plexi-glass table, which can be rotated 360 degrees. Both the laser and the CCD are mounted on an arm, such that they can be traversed along a linear path, as well as being rotated 360° around the table. This permits the device to scan in either spherical or cylindrical paths with 360° rotation around the target object. This system allows for the quick scanning of any object while minimizing the number of occlusions in the resulting scan data.

Paper Details

Date Published: 16 April 2004
PDF: 8 pages
Proc. SPIE 5302, Three-Dimensional Image Capture and Applications VI, (16 April 2004); doi: 10.1117/12.525181
Show Author Affiliations
Vincent H. Chan, Ryerson Univ. (Canada)
Medhat Samaan, Ryerson Univ. (Canada)

Published in SPIE Proceedings Vol. 5302:
Three-Dimensional Image Capture and Applications VI
Brian D. Corner; Peng Li; Roy P. Pargas, Editor(s)

© SPIE. Terms of Use
Back to Top