Image reconstruction from few views by non-convex optimization

被引：46
|
作者：
Sidky, Emil Y. [1 ]
Chartrand, Rick [2 ]
Pan, Xiaochuan [1 ]
机构：
[1] Univ Chicago, Dept Radiol, MC 2026,5841 S Maryland Ave, Chicago, IL 60637 USA
[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
来源：
2007 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-11 | 2007年
关键词：
D O I：
10.1109/NSSMIC.2007.4436889
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Image reconstruction for fan-beam computed tomography (CT) from projection data containing a small number of views is investigated. An iterative algorithm is developed that seeks to minimize the total p-variation of the reconstructed image subject to the constraint that the estimated projection data agree with the available data to within a specified data tolerance epsilon. A preliminary investigation on the dependence of image quality as a function of p and epsilon is performed.
引用
收藏
页码：3526 / +
页数：3
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