Evaluation of different adaptive filtering techniques applied to white-light interferometric sensor systems

Romare, D.; Sabry-Rizk, M.; Grattan, Kenneth T. V.

doi:10.1016/s0924-4247(97)80505-5

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…During the last decades several techniques have been developed for the analysis of white light fringes. Among others the most popular are the envelope detection technique using the phase shift algorithm [1] or the Fourier transform method [2], wavelet transform technique [3], fringe demodulation technique based on spatial carrier phase shifting algorithm [4], spectrum domain phase analysis technique [5] and techniques based on fringe geometry such as the center of gravity and polynomial fitting [6]. Recently white light fringe analysis algorithm based on multi-wavelength interferometeric technique has been reported [7].…”

Section: Introductionmentioning

confidence: 99%

Multispectral phase-crossing white-light interferometry

Pawłowski

Sakano

Miyamoto

et al. 2005

Eighth International Symposium on Laser Metrology

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A new method of white-light fringes analysis called multi-spectral phase-crossing detection is presented. The technique is based on analysis of phase distributions of at least two white-light interferograms recorded simultaneously by detectors with mutually different spectral sensitivities. The analysis of the phase crossing of multiple white-light interferograms with different spectral bands gives us the possibility to find the position of zero optical path difference without ambiguity. The theoretical background and measurement results are presented.

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