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Simultaneous phase and amplitude extraction from a single defocused image of a homogeneous object
Author(s) -
Paganin D.,
Mayo S. C.,
Gureyev T. E.,
Miller P. R.,
Wilkins S. W.
Publication year - 2002
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.2002.01010.x
Subject(s) - holography , microscopy , optics , amplitude , phase (matter) , projection (relational algebra) , homogeneous , phase retrieval , digital holographic microscopy , artificial intelligence , physics , computer vision , computer science , algorithm , fourier transform , quantum mechanics , thermodynamics
Summary 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.