An Improved Exact FBP Algorithm for Image Reconstruction in Cone-beam Helical CT

Author

Ma, Jianhua ; Chen, Wufan

Author_Institution

Sch. of Biomed. Eng., Southern Med. Univ., Guangzhou

Volume

2

fYear

2006

fDate

3-6 Nov. 2006

Firstpage

1635

Lastpage

1640

Abstract

Recently, Katsevich proposed an exact FBP algorithm and its improved version for image reconstruction in helical cone-beam CT. In this paper, we present a new FBP image reconstruction algorithm by modifying Katsevich´s original algorithm. This new algorithm is easier to implement and more efficient than the improved version of Katsevich´s algorithm. Numerical simulations are performed to validate the proposed exact FBP algorithm. Results in these studies confirm the observation that the proposed algorithm can improve the image resolution over Katsevich´s original algorithm with noiseless and noise projection data

Keywords

computerised tomography; image reconstruction; image resolution; medical image processing; partial differential equations; cone-beam helical computerized tomography; filtered backprojection algorithm; image reconstruction; image resolution; numerical simulation; Biomedical computing; Biomedical engineering; Biomedical imaging; Computed tomography; Detectors; Equations; Geometry; Image reconstruction; Image resolution; Numerical simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Security, 2006 International Conference on

Conference_Location

Guangzhou

Print_ISBN

1-4244-0605-6

Electronic_ISBN

1-4244-0605-6

Type

conf

DOI

10.1109/ICCIAS.2006.295339

Filename

4076245