https://orcid.org/0000-0002-1135-5160
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ABSTRACT
Surface Fourier transform profilometry (FTP) is a technique used for reconstructing three-dimensional (3-D) surface topography using light. It has been widely used in machine vision for biomedical and biometric automations, providing solutions beyond conventional 2-D imaging. This paper proposes an implementation of the handheld pocket-size FTP for 3-D surface profile imaging using a projector-enabled Samsung Galaxy Beam smartphone. In the implementation, a crossed-optical-axes geometry of the FTP is formed by using a mirror positioned over the phone’s projector via an adjustable tilt mounting bracket. Experimental proof-of-concept of the proposed profilometry is done by implementing conventional and non-phase shifting FTPs with different diffuse test objects. The experimental results obtained by using the non-phase shifting technique are in good agreement with those of the direct contact measurement. Besides having superiority of compactness, the proposed profilometry paves the way for the development of real-time 3-D profiling and printing through internet or Bluetooth interconnection.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Notes on contributor
Joewono Widjaja is currently a professor at School of Physics, Suranaree University of Technology. His research interest is information optics. He received the Galileo Galilei Award from the International Commission for Optics in 2008. He is a member of SPIE and a senior member of the Optical Society of America. Sangchai Paichit, Jerasak Kamonboon and Jaroon Wongjaren are graduate students at School of Electrical Engineering, Suranaree University of Technology.
ORCID
Joewono Widjaja http://orcid.org/0000-0002-1135-5160