The aim of this paper is to propose a partitioned-image filtering technique that is a new way
of reducing the Gibbs phenomenon in filtered images. Methods: This technique relies on …

This paper proposes a 2-step image reconstruction method in which the nonnegativity
constraint in the iterative maximum-likelihood expectation maximization (MLEM) algorithm is …

Gibbs ringing is a well known artifact that effects reconstruction of images having
discontinuities. This is a problem in the reconstruction of magnetic resonance imaging (MRI) …

An iterative algorithm that involves image filtering and data replacement (as suggested by
Constable and Henkelman) is investigated for reducing the Gibbs artifact in magnetic …

Gibbs ringing artifact is a type of image distortion which manifests itself as spurious ringing
around sharp edges. It is an inevitable result of truncating the Fourier Series due to missing …

Gibbs ringing is an inevitable artifact in MR Fourier Transform (FT) imaging caused by
truncating k-space data via a rectangular window. A common practice is to multiply k-space …

Objectives Both qualitative and quantitative analysis in nuclear medicine can be
undermined by Poisson noise in low-count clinical images. Whilst the conventional …

Mammographic X-ray equipment uses a radiographic grid to remove the scatter radiation
and improve image contrast. The grid causes striped lines to appear on the film and may …

The mammography X-ray equipment uses a radiographic grid in order to remove the scatter
radiation and improve image contrast. The grid causes striped lines to appear on the film …

To improve the quality of digital nuclear medicine images, we have developed a new
implementation of the Wiener restoration filter. The Wiener filter uses as its optimality …