Quantitative phase maps denoising of long holographic sequences by using SPADEDH algorithm
Anno: 2013
Autori: Memmolo P., Iannone M., Ventre M., Netti P.A., Finizio A., Paturzo M., Ferraro P.
Affiliazione autori: Center for Advanced Biomaterials for Health Care@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, Napoli 80125, Italy;
CNR-Istituto Nazionale di Ottica, via Campi Flegrei 34, Pozzuoli (NA) 80078, Italy;
Department of Materials and Production Engineering, University of Naples Federico II P.le Tecchio 80, Napoli 80125, Italy
Abstract: We propose a denoising method for digital holography mod 2p wrapped phase map by using an adaptation of the SPArsity DEnoising of Digital Holograms (SPADEDH) algorithm. SPADEDH is a l(1) minimization algorithm able to suppress the noise components on digital holograms without any prior knowledge or estimation about the statistics of noise. We test our algorithm with either general numerical simulated wrapped phase, quantifying the performance with different efficiency parameters and comparing it with two popular denoising strategies, i.e., median and Gaussian filters, and specific experimental tests, by focusing our attention on long-sequence wrapped quantitative phase maps (QPMs) of in vitro cells, which aim to have uncorrupted QPMs. In addition, we prove that the proposed algorithm can be used as a helper for the typical local phase unwrapping algorithms. (C) 2013 Optical Society of America
Giornale/Rivista: APPLIED OPTICS
Volume: 52 (7) Da Pagina: 1453 A: 1460
Parole chiavi: Digital holography; Image reconstruction techniques; MicroscopyDOI: 10.1364/AO.52.001453Citazioni: 31dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14Riferimenti 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