Analysis of the spectral properties of the Radon transform for the design of optimal sampling grids

Author

Boschen, F. ; Kummert, A.

Author_Institution

Dept. of Electr. Eng., Wuppertal Univ., Germany

fYear

2000

fDate

2000

Firstpage

126

Lastpage

130

Abstract

The sampling theorem also known as Shannon theorem is the basis for digital signal processing and computer based algorithms. A great number of publications is devoted to sampling and reconstruction of signals. Spectral properties of the underlying continuous signals and different kinds of applications require a specific approach in designing an optimal sampling grid. For doing this, in the domain of multidimensional signal processing a greater degree of freedom can be utilized. In this paper the spectral properties of the projection signal of a tomograph with respect to the bandwidth is analysed and an optimal sampling grid for projection data is presented

Keywords

Radon transforms; computerised tomography; image reconstruction; image sampling; medical image processing; multidimensional signal processing; optimisation; spectral analysis; Radon transform; Shannon theorem; computer based algorithms; continuous signals; digital signal processing; multidimensional signal processing; optimal sampling grids; sampling theorem; signal reconstruction; signal sampling; spectral analysis; tomograph projection signal; Character generation; Sampling methods; Spectral analysis; Variable speed drives;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Interpretation, 2000. Proceedings. 4th IEEE Southwest Symposium

Conference_Location

Austin, TX

Print_ISBN

0-7695-0595-3

Type

conf

DOI

10.1109/IAI.2000.839585

Filename

839585