Fourier normalized-fringe analysis by zero-order spectrum suppression using a parameter estimation approach

Jose F. Casco-Vasquez, Rigoberto Juarez-Salazar, Carlos Robledo-Sanchez, Gustavo Rodriguez-Zurita, Fermin Guerrero Sanchez, Luis M. Arévalo Aguilar, Cruz Meneses-Fabian

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

The simple filtering procedure, high spatial resolution, and low computation time benefits of Fourier normalized-fringe analysis are verified. For this, both the fringe-pattern normalization method by parameter estimation using the least squares method and the standard Fourier transform method are implemented. This proposal, or any Fourier normalizedfringe analysis scheme, has the advantage that the filter's properties are not very critical because the zero-order spectrum is suppressed by the normalization stage. Then, the simple half-plane filter is applied in the filtering procedure which, in addition, increases the spatial resolution. Both a computer simulation and the experimental results show the functionality and feasibility of the suggested scheme.

Original languageEnglish
Article number074109
JournalOptical Engineering
Volume52
Issue number7
DOIs
StatePublished - Jul 2013
Externally publishedYes

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