An autofocusing algorithm for digital holograms

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.


Autore Pugliese

Tutti gli autori

  • Ferraro P. ; Memmolo P. ; Distante C. ; Paturzo M. ; Finizio A. ; Javidi B.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2012

ISSN

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ISBN

978-0-8194-9062-9


Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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