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Development of a Fast, Reliable Fringe Projection Profilometry System


Affiliations
1 Central Manufacturing Technology Institute (CMTI), Tumkur Road, Bengaluru, India
     

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Structured Light Scanning (SLS) systems have become popular for their reliability and accuracy. In this work, Fringe Projection based SLS system has been developed. Usage of Multi-level Quality Guided Phase unwrapping algorithm for recovering the true phase map is presented; System calibration, along with the process of recovering depth from phase is explained. Finally measurement results are presented to reaffirm the fact that phase shifting technique along with quality guided spatial unwrapping can be used for fast, full field 3D-Scanning.

Keywords

Fringe Projection, 3-D Shape, Fringe Analysis, Unwrapping, Phase-Shifting.
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  • Development of a Fast, Reliable Fringe Projection Profilometry System

Abstract Views: 232  |  PDF Views: 1

Authors

R. Madhusudhan Rao
Central Manufacturing Technology Institute (CMTI), Tumkur Road, Bengaluru, India
R. Deepa
Central Manufacturing Technology Institute (CMTI), Tumkur Road, Bengaluru, India
V. Kavitha
Central Manufacturing Technology Institute (CMTI), Tumkur Road, Bengaluru, India
S. Usha
Central Manufacturing Technology Institute (CMTI), Tumkur Road, Bengaluru, India

Abstract


Structured Light Scanning (SLS) systems have become popular for their reliability and accuracy. In this work, Fringe Projection based SLS system has been developed. Usage of Multi-level Quality Guided Phase unwrapping algorithm for recovering the true phase map is presented; System calibration, along with the process of recovering depth from phase is explained. Finally measurement results are presented to reaffirm the fact that phase shifting technique along with quality guided spatial unwrapping can be used for fast, full field 3D-Scanning.

Keywords


Fringe Projection, 3-D Shape, Fringe Analysis, Unwrapping, Phase-Shifting.