Conference Publication Details
Mandatory Fields
Pandey N.;Kelly D.;Naughton T.;Hennelly B.
Proceedings of SPIE - The International Society for Optical Engineering
Speed up of Fresnel transforms for digital holography using pre-computed chirp and GPU processing
Optional Fields
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. © 2009 SPIE.
Grant Details