Multiplicative phase-shifting interferometry using optical flow

Fringe patterns with a multiplicative phase shift among them appear in experimental techniques as photoelasticity and RGB shadow moiré, among others. These patterns cannot be processed using standard phase-shifting demodulation techniques. In this work, we propose to use a multiframe regularized opt...

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Bibliographic Details
Authors: Quiroga Mellado, Juan Antonio, Vargas Balbuena, Javier, Estrada, Julio C., Sánchez Sorzano, Carlos Óscar, Servín Guirado, Manuel
Format: article
Publication Date:2012
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/43904
Online Access:https://hdl.handle.net/20.500.14352/43904
Access Level:Open access
Keyword:535
Fringe Patterns
Demodulation
Algorithm
Óptica (Física)
2209.19 Óptica Física
Description
Summary:Fringe patterns with a multiplicative phase shift among them appear in experimental techniques as photoelasticity and RGB shadow moiré, among others. These patterns cannot be processed using standard phase-shifting demodulation techniques. In this work, we propose to use a multiframe regularized optical flow algorithm to obtain the interesting modulating phase. The proposed technique has been applied to simulated and experimental interferograms obtaining satisfactory results.

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