Iterative reconstruction of tomographic images with Fourier components as model parameters

Author

Swerdloff, S. ; Dabbs, K. ; Wang, X.-M. ; Holden, J.E.

Author_Institution

Dept. of Med. Phys. & Radiol., Wisconsin Univ., Madison, WI, USA

Volume

2

fYear

1994

fDate

13-16 Nov 1994

Firstpage

840

Abstract

Iterative tomographic image reconstruction methods have focused on the optimization of some measure in the acquired data space with the image pixel values serving as the model parameters. We have developed an alternative approach in which the model parameters are instead pixel values in the two-dimensional frequency space representation of the model image. The results are at least equivalent to those obtained with the model in image space with the advantage of a considerable decrease in computational cost

Keywords

fast Fourier transforms; image reconstruction; image representation; iterative methods; parameter estimation; tomography; FFT; Fourier components; computational cost reduction; data space; image pixel values; image space; iterative tomographic image reconstruction; model image; model parameters; two-dimensional frequency space representation; Biomedical imaging; Frequency; Image reconstruction; Interpolation; Iterative methods; Phased arrays; Physics; Pixel; Reconstruction algorithms; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference

Conference_Location

Austin, TX

Print_ISBN

0-8186-6952-7

Type

conf

DOI

10.1109/ICIP.1994.413689

Filename

413689