A novel alternative algorithm for limited angle tomography

Xiaoqiang Lu, Yuan Yuan, Pingkun Yan, Xuelong Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

This paper studies incomplete data problems of circular cone-beam computed tomography, which occur frequently in medical imaging and industrial imaging. The incomplete data problems in which projection data are only available in an angular range can be attributed to the limited angle tomography. Limited angle tomography is a severely ill-posed inverse problem. In recent years, image reconstruction based on total variation (TV) was employed to reduce the problem and gave better performance on edge-preserving reconstruction. However, the artificial parameter can only be determined through considerable experimentation. In this paper, an alternating minimization method based on TV is proposed to reduce the data insufficiency in tomographic imaging. This novel alternating minimization method provides a robust and effective reconstruction without any artificial parameter in the iterative processes, by using the TV as a multiplicative constraint. The results demonstrate that this new reconstruction method brings satisfactory performance.

源语言英语
主期刊名ICIP 2011
主期刊副标题2011 18th IEEE International Conference on Image Processing
409-412
页数4
DOI
出版状态已出版 - 2011
已对外发布
活动2011 18th IEEE International Conference on Image Processing, ICIP 2011 - Brussels, 比利时
期限: 11 9月 201114 9月 2011

出版系列

姓名Proceedings - International Conference on Image Processing, ICIP
ISSN(印刷版)1522-4880

会议

会议2011 18th IEEE International Conference on Image Processing, ICIP 2011
国家/地区比利时
Brussels
时期11/09/1114/09/11

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