Accelerated Numerical Processing of Electronically Recorded Holograms With Reduced Speckle Noise

作者：Trujillo Carlos^*; Garcia Sucerquia Jorge

来源：IEEE Transactions on Image Processing, 2013, 22(9): 3528-3537.

DOI：10.1109/TIP.2013.2244219

• Digital holography (DH)
• general-purpose computing in graphics processing units (GPGPU)
• noise speckle reduction
• uncorrelated holograms

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 x 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.

• 出版日期2013-9