True three-dimensional cone-beam reconstruction (TTCR) algorithm

Author

Lee, S.Z. ; Ra, J.B. ; Hilal, S.K. ; Cho, Z.H.

Author_Institution

Dept. of Radiol., Columbia Univ., New York, NY, USA

Volume

8

Issue

4

fYear

1989

fDate

12/1/1989 12:00:00 AM

Firstpage

304

Lastpage

312

Abstract

A true three-dimensional cone-beam reconstruction (TTCR) algorithm for direct volume image reconstruction from 2-D cone-beam projections is developed for the complete sphere geometry. The algorithm is derived from the parallel-beam true three-dimensional reconstruction (TTR) algorithm and is based on the modified filtered backprojection technique, which uses a set of 2-D space-invariant filters. The proposed algorithm proved to be superior in spatial resolution to the parallel-beam TTR algorithm and to offer better computational efficiency

Keywords

computerised tomography; 2D space-invariant filters; complete sphere geometry; computational efficiency; computerised tomography; direct volume image reconstruction; medical diagnostic imaging; modified filtered backprojection technique; parallel-beam true 3D reconstruction algorithm; spatial resolution; true 3D cone-beam reconstruction algorithm; Computational efficiency; Detectors; Filters; Geometry; Image reconstruction; Image sampling; Iterative methods; Radiology; Spatial resolution; Volume measurement;

fLanguage

English

Journal_Title

Medical Imaging, IEEE Transactions on

Publisher

ieee

ISSN

0278-0062

Type

jour

DOI

10.1109/42.41483

Filename

41483