Single-shot speckle reduction in numerical reconstruction of digitally recorded holograms

摘要

A single-shot method to reduce the speckle noise in the numerical reconstructions of electronically recorded holograms is presented. A recorded hologram with the dimensions N x M is split into S = T x T sub-holograms. The uncorrelated superposition of the individually reconstructed sub-holograms leads to an image with the speckle noise reduced proportionally to the 1/root S law. The experimental results are presented to support the proposed methodology. (C) 2015 Optical Society of America