Accurate, rapid identification of dislocation lines in coherent diffractive imaging via a min-max optimization formulation
نویسندگان
چکیده
منابع مشابه
Robustified Nonlinear Model Predictive Control via a Min-Max Formulation
Nonlinear model predictive control (NMPC) is an appealing control method as it allows to control multi-input multi-output processes while taking constraints into account. It is based on successively solving open-loop optimal control problems. Although NMPC schemes may naturally exhibit a certain degree of inherent robustness, an explicit consideration of process uncertainties is preferable, par...
متن کاملDichroic coherent diffractive imaging.
Understanding electronic structure at the nanoscale is crucial to untangling fundamental physics puzzles such as phase separation and emergent behavior in complex magnetic oxides. Probes with the ability to see beyond surfaces on nanometer length and subpicosecond time scales can greatly enhance our understanding of these systems and will undoubtedly impact development of future information tec...
متن کاملMin-max-min robust combinatorial optimization
The idea of k-adaptability in two-stage robust optimization is to calculate a fixed number k of second-stage policies here-and-now. After the actual scenario is revealed, the best of these policies is selected. This idea leads to a min-max-min problem. In this paper, we consider the case where no first stage variables exist and propose to use this approach to solve combinatorial optimization pr...
متن کاملDynamic sample imaging in coherent diffractive imaging.
As the resolution in coherent diffractive imaging improves, interexposure and intraexposure sample dynamics, such as motion, degrade the quality of the reconstructed image. Selecting data sets that include only exposures where tolerably little motion has occurred is an inefficient use of time and flux, especially when detector readout time is significant. We provide an experimental demonstratio...
متن کاملCurved beam coherent diffractive imaging
We discuss a coherent diffractive imaging experiment wherein the illuminating X-ray beam is divergent, rather than planar. By reconstructing the illumination at the sample, it is possible to recover the exit surface wave in that plane. With this geometry, the usual iterative reconstruction scheme converges very quickly, without finding the typical ambiguous solutions. © 2007 Elsevier B.V. All r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: AIP Advances
سال: 2018
ISSN: 2158-3226
DOI: 10.1063/1.5017596