Simultaneous phase and amplitude extraction from a single defocused image of a homogeneous object

2002/04/01 by D. Paganin, David M. Paganin, S. C. Mayo +6 · 36 citations
Physics and Astronomy · Biochemistry, Genetics and Molecular Biology · #Advanced X-ray Imaging Techniques #Digital Holography and Microscopy #Advanced Electron Microscopy Techniques and Applications

paper · doi:10.1046/j.1365-2818.2002.01010.x

Abstract

We demonstrate simultaneous phase and amplitude extraction from a single defocused image of a homogeneous object. Subject to the assumptions explicitly stated in the derivation, the algorithm solves the twin-image problem of in-line holography and is capable of analysing data obtained using X-ray microscopy, electron microscopy, neutron microscopy or visible-light microscopy, especially as they relate to defocus and point projection methods. Our simple, robust, non-iterative and computationally efficient method is applied to data obtained using an X-ray phase contrast ultramicroscope.

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