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A new wavelet-based cone-beam local reconstruction algorithm for off-centered circular trajectory

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4 Author(s)
Haoshu Cao ; Sch. of Biol. Sci. & Med. Eng., Beihang Univ., Beijing, China ; Ke Cai ; Min Xu ; Deyu Li

Cone-beam computed tomography for circular trajectory has been widely used. Sometimes off-centered circular trajectory has to be used because of some mechanical restrictions. In this paper, we develop an algorithm to reconstruct ROI from local cone-beam projections for off-centered circular trajectory. The proposed method is derived from combination of α-FDK and wavelet-based algorithm, and their advantages are maintained. Neither severe truncation artifacts nor details blurring occurs in the reconstructed image.

Published in:
Biomedical Engineering and Informatics (BMEI), 2010 3rd International Conference on  (Volume:1 )

Date of Conference: 16-18 Oct. 2010

Page(s):
56 - 60
Print ISBN:
978-1-4244-6495-1
INSPEC Accession Number:
11662994
Conference Location :
Yantai
Digital Object Identifier :
10.1109/BMEI.2010.5639507
Product Type:
Conference Publications

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