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Proceedings Paper

Novel gray coded pattern for unwrapping phase in fringe projection based 3D profiling
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Paper Abstract

A method to reliably extract object profiles even with height discontinuities (that leads to 2nπ phase jumps) is proposed. This method uses Fourier transform profilometry to extract wrapped phase, and an additional image formed by illuminating the object of interest by a novel gray coded pattern for phase unwrapping. Simulation results suggest that the proposed approach not only retains the advantages of the original method, but also contributes significantly in the enhancement of its performance. Fundamental advantage of this method stems from the fact that both extraction of wrapped phase and unwrapping the same were done by gray scale images. Hence, unlike the methods that use colors, proposed method doesn't demand a color CCD camera and is ideal for profiling objects with multiple colors.

Paper Details

Date Published: 8 September 2010
PDF: 7 pages
Proc. SPIE 7798, Applications of Digital Image Processing XXXIII, 77982L (8 September 2010); doi: 10.1117/12.869691
Show Author Affiliations
Mahesh Kondiparthi, Indian Institute of Science (India)
Arindam Phani, Indian Institute of Science (India)


Published in SPIE Proceedings Vol. 7798:
Applications of Digital Image Processing XXXIII
Andrew G. Tescher, Editor(s)

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