2026-06-28T20:40:37Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/454692023-09-07T19:34:20Zcom_20.500.14352_14col_20.500.14352_21

Linear systems theory for the analysis of phase-shifting algorithms Quiroga Mellado, Juan Antonio Estrada, Julio César Servín Guirado, Manuel © (2010) SPIE--The International Society for Optical Engineering. Interferometry XV: Techniques and Analysis (15º. 2010. San Diego, EE.UU.) 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. 2023-06-20T05:45:35Z 2023-06-20T05:45:35Z 2010 book part 978-0-8194-8286-0 10.1117/12.860982 https://hdl.handle.net/20.500.14352/45469 http://proceedings.spiedigitallibrary.org/ Proceedings of the SPIE metadata only access SPIE--The International Society for Optical Engineering