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Accelerated Numerical Processing of Electronically Recorded Holograms With Reduced Speckle Noise

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2 Author(s)
Trujillo, C. ; Univ. Nac. de Colombia-Sede Medellin, Medellin, Colombia ; Garcia-Sucerquia, J.

The numerical reconstruction of digitally recorded holograms suffers from speckle noise. An accelerated method that uses general-purpose computing in graphics processing units to reduce that noise is shown. The proposed methodology utilizes parallelized algorithms to record, reconstruct, and superimpose multiple uncorrelated holograms of a static scene. For the best tradeoff between reduction of the speckle noise and processing time, the method records, reconstructs, and superimposes six holograms of 1024 × 1024 pixels in 68 ms; for this case, the methodology reduces the speckle noise by 58% compared with that exhibited by a single hologram. The fully parallelized method running on a commodity graphics processing unit is one order of magnitude faster than the same technique implemented on a regular CPU using its multithreading capabilities. Experimental results are shown to validate the proposal.

Published in:

Image Processing, IEEE Transactions on  (Volume:22 ,  Issue: 9 )

Date of Publication:

Sept. 2013

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