Title :
An Investigation of Discontinious Specular Surfaces Using Non-contact In-Line Monitoring Techniques
Author :
Kekukh, Kiryl ; Doherty, William
Author_Institution :
Dept. of Appl. Phys. & Instrum., Cork Inst. of Technol., Cork, Ireland
Abstract :
An existing surface metrology algorithm, based on digital fringe projection, has been applied to measure specular discontinuous surfaces. Using in-house developed software, phase maps are measured by phase-stepping interferometry. Temporal Phase Unwrapping method is then used to perform unwrapping, leading to obtaining slope at every point on the reconstructed surface.
Keywords :
interferometry; optical variables measurement; digital fringe projection; noncontact in-line monitoring techniques; phase-stepping interferometry; specular discontinuous surfaces; surface metrology algorithm; surface reconstruction; temporal phase unwrapping method; Machine vision; discontinuous surfases; fringe projection; phase stepping interferometry; temporal unwrapping;
Conference_Titel :
Machine Vision and Image Processing Conference (IMVIP), 2011 Irish
Conference_Location :
Dublin
Print_ISBN :
978-1-4673-0230-2
DOI :
10.1109/IMVIP.2011.35
