Speed up of Fresnel transforms for Digital holography using pre-computed chirp and GPU processing

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Pandey, Nitesh, Hennelly, Bryan M., Kelly, Damien P. and Naughton, Thomas J. (2009) Speed up of Fresnel transforms for Digital holography using pre-computed chirp and GPU processing. SPIE Proceedings, 7442.

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Abstract

We show how the common Fresnel reconstruction of digital holograms can be speeded up on ordinary computers by precomputing the two chirp factors for a given detector array size and then calling these values from memory during the reconstruction. The speedup in time is shown for various hologram sizes. We also run the same algorithm on a Nvidia GPU using Matlab.

Item Type:	Article
Keywords:	Digital holography; Optics; imaging; FFT;
Academic Unit:	Faculty of Science and Engineering > Computer Science
Item ID:	2363
Depositing User:	Thomas Naughton
Date Deposited:	19 Jan 2011 14:50
Journal or Publication Title:	SPIE Proceedings
Publisher:	SPIE
Refereed:	Yes
URI:	https://mural.maynoothuniversity.ie/id/eprint/2363
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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Speed up of Fresnel transforms for Digital holography using pre-computed chirp and GPU processing

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