Improved regularised phase-tracking technique for the processing of squared-grating deflectograms

dc.contributor.authorQuiroga Mellado, Juan Antonio
dc.contributor.authorVilla Hernández, José de Jesús
dc.contributor.authorServín Guirado, Manuel
dc.description© 2000 Optical Society of America. We acknowledge the support of a postdoctoral grant from the Universidad Complutense de Madrid, the “Becas Internacionales Flores-Valles” program, Spain, and the Consejo Nacional de Ciencia y Tecnología (CONACyT), México.
dc.description.abstractWe propose a robust procedure based on the regularized phase-tracking (RPT) technique to demodulate squared-grating deflectograms. The use of squared gratings, already reported, lets us multiplex the information of the deflections in two orthogonal directions in a single image, thus avoiding the necessity of rotating the gratings. The good noise-rejection characteristics of the RPT technique are improved by use of a quasi-Newton optimization algorithm and a quality-map-based algorithm for the crystal-growing process.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.sponsorshipBecas Internacionales Flores-Valles program, Spain
dc.description.sponsorshipUniversidad Complutense de Madrid
dc.description.sponsorshipConsejo Nacional de Ciencia y Tecnología (CONACyT), México
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dc.journal.titleApplied Optics
dc.publisherThe Optical Society of America
dc.rights.accessRightsopen access
dc.subject.keywordMoire Deflectometry
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleImproved regularised phase-tracking technique for the processing of squared-grating deflectograms
dc.typejournal article
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