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ISSN 0474-8662. Information Extraction and Processing. 2018. Issue 46 (122)
Retrieving the surface relief components using phase-shifting interferometry and Gaussian filter
Stasyshyn I. V.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Kotsiuba Y. M.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Muravsky L. I.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
Voronyak T. I.
Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv
https://doi.org/10.15407/vidbir2018.46.050
Keywords: 2D filtering; interferometry; surface relief; roughness; waviness
Cite as: Stasyshyn I. V., Kotsiuba Y. M., Muravsky L. I., Voronyak T. I. Retrieving the surface relief components using phase-shifting interferometry and Gaussian filter. Information Extraction and Processing. 2018, 46(122), 19-28. DOI:https://doi.org/10.15407/vidbir2018.46.050
Abstract
It is known that for the determination of mechanical, corrosive and tribological parameters, such terms as “roughness” and “waviness” are often used. Filtering in the frequency domain is used to extract these components from the total relief. An approach to determining the optimum value of the cut-off frequency for 2D Gaussian filter is proposed to obtain the surface relief by three-step phase-shifting interferometry with an arbitrary phase shift of the reference beam.
References
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