Algorithms for Fast Back- and Re-Projection in Computed Tomography

1 January 1981

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science

Vol. 28 (4) , 3641-3647
https://doi.org/10.1109/tns.1981.4331812

Abstract

While the computation time for reconstructing images in C.T. is not a problem in commercial systems, there are many experimental and developmental applications where resources are limited and image reconstruction places a heavy burden on the computer system. This paper describes a very efficient back-projection algorithm which results in large time savings when implemented in machine code. Also described is a minor modification to this algorithm which converts it to a re-projection procedure with comparable efficiency.

Keywords

COMPUTED TOMOGRAPHY
IMAGE RECONSTRUCTION
INTERPOLATION
APPLICATION SOFTWARE
GRID COMPUTING
IMAGE CONVERTERS
IMAGE PROCESSING
MATRIX CONVERTERS
COMPUTER APPLICATIONS
DISTRIBUTED COMPUTING

This publication has 1 reference indexed in Scilit:

The Fourier reconstruction of a head section
IEEE Transactions on Nuclear Science, 1974