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Robust fringe pattern analysis method for transient phenomena

dc.contributor.authorRivera, Mariano
dc.date.accessioned2019-08-30T16:21:19Z
dc.date.available2019-08-30T16:21:19Z
dc.date.issued2018
dc.identifier.citationMariano Rivera, Robust fringe pattern analysis method for transient phenomena, Optics and Lasers in Engineering, Volume 108, 2018, Pages 19-27.
dc.identifier.urihttp://hdl.handle.net/11627/5147
dc.description.abstract"We propose a method for analysing a sequence of noisy interferograms with closed fringes acquired at a high–speed frame rate. Our method is appropriate for analysing ESPI sequences of transient phenomena such as deformations caused by vibrations. Firstly, we compute a differential phase between frames using a procedure based on a Gabor filter bank. We then refine this initial phase with a regularised quadratic cost function that keeps the consistency of the restored phase with the fringe patterns. In addition, we also present the robust version of our phase refining method. This prevents the introduction of phase deformations by the smoothing process. We demonstrate by means of numerical and real–data experiments that our method is appropriate for analysing ESPI sequences of transient phenomena."
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectImaging ultrafast phenomena
dc.subjectFringe analysis
dc.subjectSpeckle interferometry
dc.subjectOptical metrology
dc.subjectVibration analysis
dc.subjectTwo phase step methods
dc.subjectGabor filter bank
dc.subjectRobust image processing
dc.subject.classificationOPTICA
dc.titleRobust fringe pattern analysis method for transient phenomena
dc.typearticle
dc.identifier.doihttps://doi.org/10.1016/j.optlaseng.2018.03.013
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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