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  • Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM
  • OSA Technical Digest (CD) (Optica Publishing Group, 2007),
  • paper DWC5
  • https://doi.org/10.1364/DH.2007.DWC5

Fast Computation of Focal Planes for Sparsely Populated Digital Holograms Using a Spectral l1 Norm

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Abstract

A new focus measure utilizing l1 norms in the Fourier domain provides focal depth estimates without reconstructing an object image. A polar implementation reduces the problem to one dimension, yielding two orders of computational speedup.

© 2007 Optical Society of America

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