Iterative Beam Hardening Correction for Multi-Material Objects
文献类型：期刊论文
| 作者 | Zhao, Yunsong; Li, Mengfei |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2015 |
| 英文摘要 | In this paper, we propose an iterative beam hardening correction method that is applicable for the case with multiple materials. By assuming that the materials composing scanned object are known and that they are distinguishable by their linear attenuation coefficients at some given energy, the beamhardening correction problem is converted into a nonlinear system problem, which is then solved iteratively. The reconstructed image is the distribution of linear attenuation coefficient of the scanned object at a given energy. So there are no beam hardening artifacts in the image theoretically. The proposediterative scheme combines an accurate polychromatic forward projection with a linearized backprojection. Both forward projection and backprojection have high degree of parallelism, and are suitable for acceleration on parallel systems. Numerical experiments with both simulated data and real data verifies the validity of the proposed method. The beam hardening artifacts are alleviated effectively. In addition, the proposed method has a good tolerance on the error of the estimated x-ray spectrum. |
| 收录类别 | SCI |
| 原文出处 | http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0144607 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/9171]  |
| 专题 | 深圳先进技术研究院_其他 |
| 作者单位 | PLOS ONE |
| 推荐引用方式 GB/T 7714 | Zhao, Yunsong,Li, Mengfei. Iterative Beam Hardening Correction for Multi-Material Objects[J]. PLOS ONE,2015. |
| APA | Zhao, Yunsong,&Li, Mengfei.(2015).Iterative Beam Hardening Correction for Multi-Material Objects.PLOS ONE. |
| MLA | Zhao, Yunsong,et al."Iterative Beam Hardening Correction for Multi-Material Objects".PLOS ONE (2015). |
入库方式： OAI收割
来源：深圳先进技术研究院
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