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Research on the Part Surface Measurement and 3 D Reconstruction(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年02期
Page:
26-30
Research Field:
Publishing date:

Info

Title:
Research on the Part Surface Measurement and 3 D Reconstruction
Author(s):
Xu Hui1; Zhang Jinlong1; Liu Jingnan2; UCHIDA Yoshihisa3
1.School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China;2.Auotomatization College,Southeast University,Nanjing 210096,China;3.Department of Intelligent Machinery Engineering,Aichi Institute of Technology,Toyoda 470-0392,Japan
Keywords:
reverse engineering; structured light; shape measurement; 3D reconstruction
PACS:
TP391.41
DOI:
-
Abstract:
The reverse engineering of geometric model based on pat exemplar has become one of the research focuses in CAD/CAM field． This paper presents the methods of 3D shape measurement and reconstruction based on surface． The measurement principle is deduced and the mathematics model is established． The deformed grating pattern appears when the standard grating pattern is projected onto the specimen． The deformed grating pattern image contains information about the surface topography of 3D object． The deformed grating pattern is input into a computer by CCD camera and processed by a series of procedures to obtain the digital point clouds of geometrical surfaces of the measured object． According to 3D shape measured data，non-uniform rational b-spline ( NURBS) surface fitting based on an extracted topology array is made． Experimental result shows that the system can realize 3D shape measurement and reconstruction of complex surface．

References:

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Last Update: 2013-03-21