Speed up of Fresnel transforms for Digital holography using pre-computation
Pandey, Nitesh and Hennelly, Bryan M. and Kelly, Damien P. and Naughton, Thomas J. (2009) Speed up of Fresnel transforms for Digital holography using pre-computation. SPIE Proceedings, 7442 . AbstractWe 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. | Keywords: | Digital holography; Optics; imaging; FFT; |
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| Subjects: | Science & Engineering > Computer Science |
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| ID Code: | 2363 |
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| Deposited By: | Dr. Thomas Naughton |
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| Deposited On: | 19 Jan 2011 14:50 |
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| Journal or Publication Title: | SPIE Proceedings |
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| Publisher: | SPIE |
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| Refereed: | Yes |
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