Two-dimensional local Fourier image reconstruction via domain decomposition Fourier continuation method
نویسندگان
چکیده
منابع مشابه
The fractional Fourier domain decomposition
We introduce the fractional Fourier domain decomposition. A procedure called pruning, analogous to truncation of the singular-value decomposition, underlies a number of potential applications, among which we discuss fast implementation of space-variant linear systems. ( 1999 Published by Elsevier Science B.V. All rights reserved.
متن کاملFourier spectral method for analytic continuation
The numerical analytic continuation of a function f(z) = f(x + iy) on a strip is discussed in this paper. The data are only given approximately on the real axis. The periodicity of given data is assumed. A truncated Fourier spectral method has been introduced to deal with the ill-posedness of the problem. The theoretic results show that the discrepancy principle can work well for this problem. ...
متن کاملFourier domain optical tool normalization for quantitative parametric image reconstruction.
There has been much recent work in developing advanced optical metrology methods that use imaging optics for critical dimension measurements and defect detection. Sensitivity to nanometer-scale changes has been observed when measuring critical dimensions of subwavelength 20 nm features or when imaging defects below 15 nm using angle-resolved and focus-resolved optical data. However, these metho...
متن کاملThree Dimensional Image Reconstruction from Fourier Magnitude Measurements
The problem of recovering a three-dimensional image from samples of the Fourier magnitude and a priori knowledge of the object structure is addressed. It is shown that this mathematical problem relates to a method for remotely imaging opaque surfaces. Two broad approaches to finding an iterative solution are presented. One manipulates the support of the autocorrelation function, which can be es...
متن کاملAn Enhanced Finite Element method for Two Dimensional Linear Viscoelasticity using Complex Fourier Elements
In this paper, the finite element analysis of two-dimensional linear viscoelastic problems is performed using quadrilateral complex Fourier elements and, the results are compared with those obtained by quadrilateral classic Lagrange elements. Complex Fourier shape functions contain a shape parameter which is a constant unknown parameter adopted to enhance approximation’s accuracy. Since the iso...
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: PLOS ONE
سال: 2019
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0197963