Correct self-assembling of spatial frequencies in super-resolution synthetic aperture digital holography
Anno: 2009
Autori: Paturzo M., Ferraro P.
Affiliazione autori: CNR – Istituto Nazionale di Ottica Applicata, via Campi Flegrei 34, 80078 Pozzuoli (NA) Italy
Abstract: Synthetic aperture enlargement is obtained, in lensless digital holography, by introducing a diffraction grating between the object and the CCD camera with the aim of getting super-resolution. We demonstrate here that the spatial frequencies are naturally self-assembled in the reconstructed image plane when the NA is increased synthetically at its maximum extent of three times. By this approach it possible to avoid the use of the grating transmission formula in the numerical reconstruction process, thus reducing significantly the noise in the final super-resolved image. Demonstrations are reported in 1D and 2D with an optical target and a biological sample, respectively. (C) 2009 Optical Society of America
Giornale/Rivista: OPTICS LETTERS
Volume: 34 (23) Da Pagina: 3650 A: 3652
Maggiori informazioni: Research funded from the EU FP7/2007-2013, grant 216105. The authors thank A. Finizio and V. Guglielmotti.Parole chiavi: Microscopy; Reconstruction; ResolutionDOI: 10.1364/OL.34.003650Citazioni: 34dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti 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
