A reconstruction algorithm for reverse geometry based volume CT

Author

Lu, Donghuu ; Chen, Biao ; Zhuang, Tiange

Author_Institution

Dept. of Biomed. Eng., Shanghai Jiaotong Univ., China

Volume

2

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

660

Abstract

Compared to the existing volume CT, reverse geometry based volume CT (RGVCT) has a high SNR projections data and a flexible imaging geometry for an exact reconstruction. Here, the authors present a novel orthogonal circle-and-arc orbit (OCAO) for cone-beam CT (CBCT) and its completeness condition, and then they put forward a flexible orthogonal circle-and-arcs orbit for RGVCT and its completeness condition. By use of the equivalence relation between the reverse imaging geometry and the traditional imaging geometry, the authors give a reconstruction algorithm for RGVCT

Keywords

computerised tomography; image reconstruction; medical image processing; completeness condition; cone-beam CT; equivalence relation; exact reconstruction; flexible imaging geometry; medical diagnostic imaging; orthogonal circle-and-arc orbit; reconstruction algorithm; reverse geometry based volume CT; Algorithm design and analysis; Computed tomography; Geometry; Image reconstruction; Optical imaging; Reconstruction algorithms; Sensor arrays; X-ray detection; X-ray detectors; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745504

Filename

745504