Keywords
white light interferogram
nonlinear surface profile
Hilbert transform
reconstruction error
nonlinear surface profile
Hilbert transform
reconstruction error
Abstract
The paper presents methods for nonlinear surface profile reconstruction from the white light interferogram based on Hilbert transform. The accuracy of these methods was analyzed on the example of a spherical surface reconstruction. The method investigation included surface and interferogram synthesis based on the mathematical model and estimation the profile reconstruction error. The method of estimating the instantaneous phase of the interferogram showed the greatest accuracy.
References
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[2] Cincio, R., Kacalak, W., Łukianowicz, C.: System Talysurf CCI 6000 – methodic of analysis surface feature with using TalyMap Platinium. PAK, 2008, Nr 4, 187-191.
[3] Smith S.W.: Digital signal processing. A practical guide for engineers and scientists, Esliver Science, (2003).
[2] Cincio, R., Kacalak, W., Łukianowicz, C.: System Talysurf CCI 6000 – methodic of analysis surface feature with using TalyMap Platinium. PAK, 2008, Nr 4, 187-191.
[3] Smith S.W.: Digital signal processing. A practical guide for engineers and scientists, Esliver Science, (2003).