Title :
A Reconstruction Algorithm for Triple-Source Helical Cone-Beam CT
Author :
Zhao, Jun ; Jiang, Ming ; Zhuang, Tiange ; Wang, Ge
Author_Institution :
Dept. of Biomed. Eng., Shanghai Jiao Tong Univ.
fDate :
6/27/1905 12:00:00 AM
Abstract :
For fast and exact CT reconstruction, we have conceptualized a triple-source helical cone-beam scanning mode, and formulated a backprojected-filtration (BPF) algorithm for that imaging geometry. The algorithm uses data from the three inter-helix PI-arcs related to the inter-helix PI-lines and the minimum detection windows defined for the triple-source configuration. The proof of the formula is based on Tuy´s inversion formula and the geometric relations of inter-helix PI-lines
Keywords :
computerised tomography; image reconstruction; medical image processing; Tuy inversion formula; backprojected-filtration algorithm; geometric relations; inter-helix PI-lines; minimum detection windows; reconstruction algorithm; three inter-helix PI-arcs; triple-source configuration; triple-source helical cone-beam CT; Animals; Band pass filters; Biomedical engineering; Biomedical imaging; Computed tomography; Equations; Geometry; Image reconstruction; Reconstruction algorithms; Spirals;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616816
