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

Nitesh Pandey; Damien P. Kelly; Thomas J. Naughton; Bryan M. Hennelly

doi:10.1117/12.830587

26 August 2009 Speed up of Fresnel transforms for digital holography using pre-computed chirp and GPU processing

Nitesh Pandey, Damien P. Kelly, Thomas J. Naughton, Bryan M. Hennelly

Proceedings Volume 7442, Optics and Photonics for Information Processing III; 744205 (2009) https://doi.org/10.1117/12.830587
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

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

Citation Download Citation

Nitesh Pandey, Damien P. Kelly, Thomas J. Naughton, and Bryan M. Hennelly "Speed up of Fresnel transforms for digital holography using pre-computed chirp and GPU processing", Proc. SPIE 7442, Optics and Photonics for Information Processing III, 744205 (26 August 2009); https://doi.org/10.1117/12.830587

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