Generalized phase-shifting algorithms: error analysis and minimization of noise propagation.
Appl Opt
; 55(6): 1461-9, 2016 Feb 20.
Article
en En
| MEDLINE
| ID: mdl-26906601
ABSTRACT
Phase shifting is a technique for phase retrieval that requires a series of intensity measurements with certain phase steps. The purpose of the present work is threefold first we present a new method for generating general phase-shifting algorithms with arbitrarily spaced phase steps. Second, we study the conditions for which the phase-retrieval error due to phase-shift miscalibration can be minimized. Third, we study the phase extraction from interferograms with additive random noise, and deduce the conditions to be satisfied for minimizing the phase-retrieval error. Algorithms with unevenly spaced phase steps are discussed under linear phase-shift errors and additive Gaussian noise, and simulations are presented.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Año:
2016
Tipo del documento:
Article