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Proceedings Paper

Speed up of Fresnel transforms for digital holography using pre-computed chirp and GPU processing
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Paper Abstract

We show how the reconstruction of digital holograms can be speeded up on ordinary computers by precomputing the chirp factor in the Fresnel transform for a given detector array size. The speedup in time is shown for various hologram sizes. We also run the same algorithm on a Nvidia GPU. The speedup and the error introduced due to quantizing to different levels is investigated. Additionally a variance based

Paper Details

Date Published: 27 August 2009
PDF: 11 pages
Proc. SPIE 7442, Optics and Photonics for Information Processing III, 744205 (27 August 2009); doi: 10.1117/12.830587
Show Author Affiliations
Nitesh Pandey, National Univ. of Ireland, Maynooth (Ireland)
Damien P. Kelly, National Univ. of Ireland, Maynooth (Ireland)
Thomas J. Naughton, National Univ. of Ireland, Maynooth (Ireland)
Univ. of Oulu (Finland)
Bryan M. Hennelly, National Univ. of Ireland, Maynooth (Ireland)


Published in SPIE Proceedings Vol. 7442:
Optics and Photonics for Information Processing III
Khan M. Iftekharuddin; Abdul Ahad Sami Awwal, Editor(s)

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