DocumentCode :
2744370
Title :
Comparison Between Single and Dual Laser Pointer Applications in Digital Scanning System
Author :
Arthaya, Bagus
Author_Institution :
Ind. Eng. Dept., Parahyangan Catholic Univ., Bandung, Indonesia
fYear :
2009
fDate :
25-27 Nov. 2009
Firstpage :
316
Lastpage :
320
Abstract :
In reverse engineering concept, points cloud becomes a very important source of information to build a digital model of a physical product. Several methods are well known in collecting points scanned from an object surface. One of them is by using a flat laser beam projected on the product surface. A digital camera is directed to the projected beam and it continuously takes digital images. This method is also called a noncontact scanning method. In our previous work a single laser pointer was applied to get a projected line (set of points) on a targeted surface. Problems appeared when two free surfaces intersecting in a sharp angle or less than about 135 degree. Product like a cube (or other rectangular part) can not be scanned successfully as it has six faces intersecting at right angles therefore some parts of the surface can not be scanned as it is hidden by the sharp corner at a certain view. This leads to an imperfect digital model developed from incomplete points cloud. To deal with this problem, a dual laser pointer system has been developed to improve the method of scanning and to enhance the quality of points cloud extracted from the scanned data. The two laser pointers are placed 90 degree to each other and the digital camera is positioned between them. The camera takes images of laser lines pointed on the object surface while the object is being rotated. Experimental results confirm a better points cloud can be developed using this new technique.
Keywords :
cameras; optical scanners; product development; reverse engineering; digital camera; digital scanning system; laser pointer; laser scanning; points cloud; reverse engineering; Clouds; Digital cameras; Digital images; Information resources; Laser applications; Laser beams; Laser modes; Laser theory; Reverse engineering; Surface emitting lasers; digital images; digital model; laser pointer; laser scanning; points cloud; reverse engineering;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Modeling and Simulation, 2009. EMS '09. Third UKSim European Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-5345-0
Electronic_ISBN :
978-0-7695-3886-0
Type :
conf
DOI :
10.1109/EMS.2009.117
Filename :
5358775
Link To Document :
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