Phase retrieval in x-ray imaging based on using structured illumination
نویسندگان
چکیده
Y. J. Liu, B. Chen, E. R. Li, J. Y. Wang, A. Marcelli, S. W. Wilkins, H. Ming, Y. C. Tian, K. A. Nugent,* P. P. Zhu, and Z. Y. Wu Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China School of Physics, The University of Melbourne, Victoria 3010, Australia Department of Physics, University of Science and Technology of China, Hefei 230026, China INFN-Laboratori Nazionali di Frascati, Via E. Fermi 40, I-00044 Frascati, Rome 00146, Italy Commonwealth Scientific and Industrial Research Organisation, PB 33, Clayton South, Victoria 3169, Australia National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China !Received 12 November 2007; published 11 August 2008"
منابع مشابه
Near-field ptychography: phase retrieval for inline holography using a structured illumination
Inline holography is a common phase-contrast imaging method which uses free-space propagation to encode the phase signal into measured intensities. However, quantitative retrieval of the sample's image remains challenging, imposing constraints on the nature of the sample or on the propagation distance. Here, we present a way of simultaneously retrieving the sample's complex-valued transmission ...
متن کاملRecent advances in edge illumination x-ray phase-contrast tomography.
Edge illumination (EI) is an x-ray phase-contrast imaging technique, exploiting sensitivity to x-ray refraction to visualize features, which are often not detected by conventional absorption-based radiography. The method does not require a high degree of spatial coherence and is achromatic and, therefore, can be implemented with both synchrotron radiation and commercial x-ray tubes. Using diffe...
متن کاملPhase and absorption retrieval using incoherent X-ray sources.
X-ray phase contrast imaging has overcome the limitations of X-ray absorption imaging in many fields. Particular effort has been directed towards developing phase retrieval methods: These reveal quantitative information about a sample, which is a requirement for performing X-ray phase tomography, allows material identification and better distinction between tissue types, etc. Phase retrieval se...
متن کاملFlexible Retrospective Phase Stepping in X-Ray Scatter Correction and Phase Contrast Imaging Using Structured Illumination
The development of phase contrast methods for diagnostic x-ray imaging is inspired by the potential of seeing the internal structures of the human body without the need to deposit any harmful radiation. An efficient class of x-ray phase contrast imaging and scatter correction methods share the idea of using structured illumination in the form of a periodic fringe pattern created with gratings o...
متن کاملPhase Retrieval via Matrix Completion
This paper develops a novel framework for phase retrieval, a problem which arises in X-ray crystallography, diffraction imaging, astronomical imaging and many other applications. Our approach, called PhaseLift, combines multiple structured illuminations together with ideas from convex programming to recover the phase from intensity measurements, typically from the modulus of the diffracted wave...
متن کاملReverse projection retrieval in edge illumination x-ray phase contrast computed tomography
Edge illumination (EI) x-ray phase contrast computed tomography (CT) can provide threedimensional distributions of the real and imaginary parts of the complex refractive index ( δ β = − + n 1 i ) of the sample. Phase retrieval, i.e. the separation of attenuation and refraction data from projections that contain a combination of both, is a key step in the image reconstruction process. In EI-base...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008