Title :
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
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;
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
DOI :
10.1109/ICCIAS.2006.295339
