Linear algebra approach to phase shifting interferometry: numerical methods

Autor:	Javier Vargas, Marco A. Escobar, Julio C. Estrada
Rok vydání:	2019
Předmět:	Set (abstract data type) Iterative method Computer science Numerical analysis Principal component analysis Linear algebra Phase (waves) Representation (mathematics) Phase retrieval Algorithm
Zdroj:	Applied Optical Metrology III.
DOI:	10.1117/12.2530125
Popis:	We model a set of Phase-Shifting Interferogram (PSI) images in a new and versatile way that allows exploring interesting numerical approaches for the analysis of PSI. We show how this representation can be used to recover the modulating phase if the phase steps are known, and we also show how it can be used as the baseline for an iterative algorithm. For the case in which the phase steps are known we compare against the four step algorithm. For the case of unknown phase steps, we compare against the Principal Component Analysis (PCA) and the Advanced Iterative Algorithm (AIA).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1ab64b80a1a38746eb224409f68675a9 https://doi.org/10.1117/12.2530125 Zobrazit plný text záznamu