Abstract:
:To increase the scanning speed of cone-beam CT, a scanning configuration with three pairs of x-ray sources and panel detectors was proposed. In this paper, we apply the M-line-based backprojected filtration algorithm to this scanning configuration and propose a fast implementation for this algorithm. Compared with existing implementations, the advantages of our implementation are as follows: (1) it can directly reconstruct horizontal slices (i.e. the slices perpendicular to the rotation axis), without 3D interpolation; (2) it does not need to calculate the backprojection intervals for any point; (3) it has a high degree of parallelism and is suitable for acceleration on graphic processing units or other parallel systems.
journal_name
Phys Med Bioljournal_title
Physics in medicine and biologyauthors
Zhao Y,Zhu Y,Zhang Pdoi
10.1088/0031-9155/55/23/009subject
Has Abstractpub_date
2010-12-07 00:00:00pages
7317-31issue
23eissn
0031-9155issn
1361-6560pii
S0031-9155(10)50539-6journal_volume
55pub_type
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