| Optimization for limited angle tomography in medical image processing | |
Lu, Xiaoqiang2; Sun, Yi2; Yuan, Yuan1
| |
| 作者部门 | 光学影像分析与学习中心 |
| 2011-10-01 | |
| 发表期刊 | PATTERN RECOGNITION
 |
| ISSN | 0031-3203 |
| 卷号 | 44期号:10-11页码:2427-2435 |
| 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. |
| 文章类型 | Article |
| 关键词 | Limited Angle Tomography Ill-posed Inverse Problem Total Variation (Tv) |
| WOS标题词 | Science & Technology ; Technology |
| DOI | 10.1016/j.patcog.2010.12.016 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | EXTERIOR RADON-TRANSFORM ; X-RAY TOMOGRAPHY ; COMPUTED-TOMOGRAPHY ; STATISTICAL INVERSION ; INCOMPLETE DATA ; BEAM CT ; RECONSTRUCTION ; RADIOGRAPHS ; PROJECTIONS ; ALGORITHMS |
| 语种 | 英语 |
| WOS研究方向 | Computer Science ; Engineering |
| WOS类目 | Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic |
| WOS记录号 | WOS:000292849000020 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/10569 |
| 专题 | 光谱成像技术研究室 |
| 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. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Optimization for lim（804KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论