Data compression strategies for ptychographic diffraction imaging
نویسندگان
چکیده
منابع مشابه
Translation position determination in ptychographic coherent diffraction imaging.
Accurate knowledge of translation positions is essential in ptychography to achieve a good image quality and the diffraction limited resolution. We propose a method to retrieve and correct position errors during the image reconstruction iterations. Sub-pixel position accuracy after refinement is shown to be achievable within several tens of iterations. Simulation and experimental results for bo...
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Recent advances in coherent x-ray diffractive imaging have paved the way to reliable and quantitative imaging of noncompact specimens at the nanometer scale. Introduced a year ago, an advanced implementation of ptychographic coherent diffractive imaging has removed much of the previous limitations regarding sample preparation and illumination conditions. Here, we apply this recent approach towa...
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Ptychography is a form of Coherent Diffractive Imaging (CDI) in which a localized illumination function (or probe) is sent to a grid of positions on a sample and a detector records a diffraction pattern at each position. Setting the pitch of the position grid smaller than the size of the probe ensures that most points on the sample are illuminated multiple times, whilst structure in the probe e...
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Ptychography is a coherent diffractive imaging method that uses multiple diffraction patterns obtained through the scan of a localized illumination on the specimen. Until recently, reconstruction algorithms for ptychographic datasets needed the a priori knowledge of the incident illumination. A new reconstruction procedure that retrieves both the specimen's image and the illumination profile wa...
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ژورنال
عنوان ژورنال: Advanced Optical Technologies
سال: 2017
ISSN: 2192-8584,2192-8576
DOI: 10.1515/aot-2017-0053