An autofocusing algorithm for digital holograms
Anno: 2012
Autori: Ferraro P., Memmolo P., Distante C., Paturzo M., Finizio A., Javidi B.
Affiliazione autori: CNR – Istituto Nazionale di Ottica, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; CNR – Istituto Nazionale di Ottica, viale della Libertà 3, 73010 Arnesano (LE), Italy; Electrical and Computer Engineering Department, University of Connecticut,U-2157 Storrs, Connecticut 06269-2157, USA
Abstract: We propose an algorithm for the automatic estimation of the in-focus image and the recovery of the correct reconstruction distance for digital holograms. We tested the proposed approach applying it to stretched digital holograms. In fact, by stretching an hologram with a variable elongation parameter, it is possible to change the in-focus distance of the reconstructed image. In this way, the reliability of proposed algorithm can be verified at different distances dispensing with the recording of different holograms. Experimental results are shown with the aim to demonstrate the usefulness of the proposed method and a comparative analysis has been performed with respect to other algorithms developed for digital holography.
Giornale/Rivista: PROCEEDINGS OF SPIE
Volume: 8384 Da Pagina: 838408 A: 838408
Parole chiavi: Digital holographyDOI: 10.1117/12.920000Citazioni: 1dati 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