J
Juan Antonio Quiroga
Researcher at Complutense University of Madrid
Publications - 99
Citations - 1973
Juan Antonio Quiroga is an academic researcher from Complutense University of Madrid. The author has contributed to research in topics: Demodulation & Phase (waves). The author has an hindex of 24, co-authored 98 publications receiving 1848 citations. Previous affiliations of Juan Antonio Quiroga include Centro de Investigaciones en Optica.
Papers
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The general theory of phase shifting algorithms
TL;DR: In the light of a better understanding provided by the past works, the general theory of PSI algorithms is presented and expanded in a more coherent and holistic way.
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Isotropic n-dimensional fringe pattern normalization
TL;DR: In this article, a direct and isotropic operator based on the application of an n-dimensional quadrature transform was proposed to normalize a single fringe pattern where spatially varying background and/or modulation act as error sources.
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Algorithm for fringe pattern normalization
TL;DR: A new algorithm for fringe pattern normalization, that is, background suppression and modulation normalization is presented, based in the use of two orthogonal bandpass filters, from which a normalized irradiance distribution is obtained.
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General n-dimensional quadrature transform and its application to interferogram demodulation.
TL;DR: In this article, an n-dimensional quadrature operator that transforms cos(ϕ) into -sin( ϕ) regardless of the frequency spectrum of the signal was proposed.
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Phase measuring algorithm for extraction of isochromatics of photoelastic fringe patterns
TL;DR: A new phase-measuring algorithm is presented that permits the extraction of the isochromatic phase with almost no influence from the isoclinics, thus avoiding the usual problems of low-modulation areas associated with isOClinics.