Improved accuracy phase retrieval in spatial phase-shifting interferometry
Anno: 2012
Autori: Vannoni M., Melozzi M., Barilli M., Sordini A., Molesini G.
Affiliazione autori: CNR-Istituto Nazionale di Ottica, Largo E. Fermi 6, Firenze 50125, Italy;
Selex Galileo S.p.A, Via A. Einstein 35, Campi Bisenzio 50013, Italy
Abstract: Algorithms for phase retrieval in spatial phase-shifting interferometry are examined. It is noticed that the classical Carre technique based on four neighbor pixels may introduce shaped phase residuals that affect the accuracy of the reconstruction. A variant of the technique is proposed, taking into consideration five pixels and steering the phase retrieval algorithm to the appropriate subset so that residuals are free of underlying errors. Computational results are presented illustrating the approach and demonstrating the accuracy improvement in a case study. (C) 2011 Elsevier B.V. All rights reserved.
Giornale/Rivista: OPTICS COMMUNICATIONS (PRINT)
Volume: 285 (5) Da Pagina: 517 A: 520
Parole chiavi: Accuracy Improvement; Computational results; Phase retrieval; Phase retrieval algorithm; Spatial phase-shifting, Algorithms; Optical testing; Pixels, InterferometryDOI: 10.1016/j.optcom.2011.11.016Citazioni: 4dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-21Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui