Optimization for limited angle tomography in medical image processing
文献类型：期刊论文
| 作者 | Lu, Xiaoqiang2; Sun, Yi2; Yuan, Yuan1
|
| 刊名 | pattern recognition
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 44期号:10-11页码:2427-2435 |
| 关键词 | Limited angle tomography Ill-posed inverse problem Total variation (TV) |
| ISSN号 | 0031-3203 |
| 英文摘要 | this paper aims to reduce the problems of incomplete data in computed tomography, which happens frequently in medical image process and analysis, e.g., when the high-density region of objects can only be penetrated by x-rays at a limited angular range. as the projection data are available only in an angular range, the incomplete data problem can be attributed to the limited angle problem, which is an ill-posed inverse problem. image reconstruction based on total variation (tv) reduces the problem and gives better performance on edge-preserving reconstruction: however, the artificial parameter can only be determined through considerable experimentation. in this paper, an effective tv objective function is proposed to reduce the inverse problem in the limited angle tomography. this novel objective function provides a robust and effective reconstruction without any artificial parameter in the iterative processes, using the tv as a multiplicative constraint. the results demonstrate that this reconstruction strategy outperforms some previous ones. (c) 2011 published by elsevier ltd. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | computer science, artificial intelligence ; engineering, electrical & electronic |
| 研究领域[WOS] | computer science ; engineering |
| 关键词[WOS] | exterior radon-transform ; x-ray tomography ; computed-tomography ; statistical inversion ; incomplete data ; beam ct ; reconstruction ; radiographs ; projections ; algorithms |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292849000020 |
| 公开日期 | 2011-09-30 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/10569]  |
| 专题 | 西安光学精密机械研究所_光学影像学习与分析中心 |
| 作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Ctr OPT IMagery Anal & Learning OPTIMAL, Xian 710119, Shaanxi, Peoples R China 2.Dalian Univ Technol, Dept Elect Engn, Sch Elect & Informat Engn, Dalian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Xiaoqiang,Sun, Yi,Yuan, Yuan. Optimization for limited angle tomography in medical image processing[J]. pattern recognition,2011,44(10-11):2427-2435. |
| APA | Lu, Xiaoqiang,Sun, Yi,&Yuan, Yuan.(2011).Optimization for limited angle tomography in medical image processing.pattern recognition,44(10-11),2427-2435. |
| MLA | Lu, Xiaoqiang,et al."Optimization for limited angle tomography in medical image processing".pattern recognition 44.10-11(2011):2427-2435. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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