Spherical/cylindrical laser scanner for geometric reverse engineering

Vincent H. Chan; Medhat Samaan

doi:10.1117/12.525181

16 April 2004 Spherical/cylindrical laser scanner for geometric reverse engineering

Vincent H. Chan, Medhat Samaan

Proceedings Volume 5302, Three-Dimensional Image Capture and Applications VI; (2004) https://doi.org/10.1117/12.525181
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

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.

Citation Download Citation

Vincent H. Chan and Medhat Samaan "Spherical/cylindrical laser scanner for geometric reverse engineering", Proc. SPIE 5302, Three-Dimensional Image Capture and Applications VI, (16 April 2004); https://doi.org/10.1117/12.525181

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