Share Email Print
cover

Proceedings Paper

Linear systems theory for the analysis of phase-shifting algorithms
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Phase-shifting algorithms are methods used for recovering the modulating phase of an interferogram sequence obtained by Phase Stepping Interferometry (PSI) techniques. Typically, the number of interferograms in a PSI sequence is from 3 to around 9 interferograms, although we can find algorithms that works with more than 9 interferograms. In this paper, we are going to show the analysis and design of phase-shifting algorithms from the point of view of the linear systems paradigm from digital signal processing. We will show how this paradigm describes in a general fashion the phase-shifting algorithm systems, and how we can easily design tunable phase-shifting algorithms using this simple scheme.

Paper Details

Date Published: 2 August 2010
PDF: 7 pages
Proc. SPIE 7790, Interferometry XV: Techniques and Analysis, 779008 (2 August 2010); doi: 10.1117/12.860982
Show Author Affiliations
Julio C. Estrada, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Manuel Servín, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Juan A. Quiroga, Univ. Complutense de Madrid (Spain)


Published in SPIE Proceedings Vol. 7790:
Interferometry XV: Techniques and Analysis
Catherine E. Towers; Joanna Schmit; Katherine Creath, Editor(s)

© SPIE. Terms of Use
Back to Top