This paper demonstrates the feasibility of using phase stepping and a multicore optical fiber to calculate an object's depth profile. An interference pattern is projected by an optical fiber onto the object. The distorted interference pattern containing the object information is captured by a CCD camera and processed using a phase step interferometry method. The phase step method is less computationally intensive compared to two-dimensional Fourier transform profilometry and provides more accuracy when measuring objects of high frequency spatial variations. (C) 2012 Optical Society of America
Ari Jason Novack , '12; David Joseph D'Annunzio , '12; Ekin Dogus Çubuk , '10; N. Inci; and Lynne Molter , '79.
"Three-Dimensional Phase Step Profilometry With A Multicore Optical Fiber".
This work is freely available courtesy of the Optical Society of America.