Images as power spectra; reconstruction as a Wiener filter approximation

CL Byrne, MA Fiddy - Inverse Problems, 1988 - iopscience.iop.org
The problem of reconstructing a non-negative function from finitely many values of its Fourier
transform is a problem of approximating one function by another and, as such, is analogous …

Algorithms and applications

J Skilling, SF Gull - Maximum-entropy and Bayesian methods in inverse …, 1985 - Springer
Maximum entropy, using the Shannon/Jaynes form-Σ p log p, is an enormously powerful tool
for reconstructing positive, additive images from a wide variety of types of data. The …

Image restoration and resolution enhancement

CL Byrne, RM Fitzgerald, MA Fiddy, TJ Hall… - JOSA, 1983 - opg.optica.org
The ill-posed problem of restoring object information from finitely many measurements of its
spectrum can be solved by using the best approximation in Hilbert spaces appropriately …

An algorithm for optimal regular sampling

MM Dodson, AM Silva - Signal Processing, 1989 - Elsevier
A finite energy signal can be reconstructed from equally spaced samples taken at a rate ρ if
translates of the signal's spectral region by non-zero integer multiples of ρ are disjoint, or …

Application of wavelets to filtering of noisy data

UL Pen - Philosophical Transactions of the Royal Society …, 1999 - royalsocietypublishing.org
I discuss approaches to optimally remove noise from images. A generalization of Wiener
filtering to non–Gaussian distributions and wavelets is described, as well as an approach to …

Maximum entropy image reconstruction from phaseless Fourier data

RK Bryan, J Skilling - Optica Acta: International Journal of Optics, 1986 - Taylor & Francis
The application of the maximum entropy method of image processing to the problem of
reconstructing an image from the intensities of its Fourier transform is discussed. We present …

Wavelets and the theory of non-parametric function estimation

IM Johnstone - … Transactions of the Royal Society of …, 1999 - royalsocietypublishing.org
Non–parametric function estimation aims to estimate or recover or denoise a function of
interest, perhaps a signal, spectrum or image, that is observed in noise and possibly …

Nonlinear image recovery with half-quadratic regularization

D Geman, C Yang - IEEE transactions on Image Processing, 1995 - ieeexplore.ieee.org
One popular method for the recovery of an ideal intensity image from corrupted or indirect
measurements is regularization: minimize an objective function that enforces a roughness …

Restoration for sampled imaging systems

L Wood, RA Schowengerdt… - Applications of Digital …, 1986 - spiedigitallibrary.org
Digital image restoration requires some knowledge of the degradation phenomena in order
to attempt an inversion of that degradation. Typically, degradations which are included in the …

Sampling and reconstruction of shapes with algebraic boundaries

M Fatemi, A Amini, M Vetterli - IEEE Transactions on Signal …, 2016 - ieeexplore.ieee.org
We present a sampling theory for a class of binary images with finite rate of innovation (FRI).
Every image in our model is the restriction of 1 {p≤ 0} to the image plane, where 1 denotes …