基于SART算法的CL硬化伪影校正方法研究
文献类型：期刊论文
| 作者 | Cao, Da-Quan; Wang, Ya-Xiao; Que, Jie-Min; Sun, Cui-Li; Wei, Cun-Feng; Wei, Long |
| 刊名 | 原子能科学技术:Atomic Energy Science and Technology
 |
| 出版日期 | 2014 |
| 卷号 | 48期号:7页码:1314-1320 |
| ISSN号 | 1000-6931 |
| DOI | 10.7538/yzk.2014.48.07.1314 |
| 文献子类 | Article |
| 英文摘要 | Computed laminography (CL) is a non-destructive testing technique for large objects, especially for planar objects. Beam hardening artifacts were wildly observed in the CL system and significantly reduce the image quality. This study proposed a novel simultaneous algebraic reconstruction technique (SART) based beam hardening correction (BHC) method for the CL system, namely the SART-BHC algorithm in short. The SART-BHC algorithm took the polychromatic attenuation process in account to formulate the iterative reconstruction update. A novel projection matrix calculation method which was different from the conventional cone-beam or fan-beam geometry was also studied for the CL system. The proposed method was evaluated with simulation data and experimental data, which was generated using the Monte Carlo simulation toolkit Geant4 and a bench-top CL system, respectively. All projection data were reconstructed with SART-BHC algorithm and the standard filtered back projection (FBP) algorithm. The reconstructed images show that beam hardening artifacts are greatly reduced with the SART-BHC algorithm compared to the FBP algorithm. The SART-BHC algorithm doesn't need any prior know-ledge about the object or the X-ray spectrum and it can also mitigate the interlayer aliasing. |
| 语种 | 中文 |
| 源URL | [https://ir.ihep.ac.cn/handle/311005/304270]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cao, Da-Quan,Wang, Ya-Xiao,Que, Jie-Min,等. 基于SART算法的CL硬化伪影校正方法研究[J]. 原子能科学技术:Atomic Energy Science and Technology,2014,48(7):1314-1320. |
| APA | Cao, Da-Quan,Wang, Ya-Xiao,Que, Jie-Min,Sun, Cui-Li,Wei, Cun-Feng,&Wei, Long.(2014).基于SART算法的CL硬化伪影校正方法研究.原子能科学技术:Atomic Energy Science and Technology,48(7),1314-1320. |
| MLA | Cao, Da-Quan,et al."基于SART算法的CL硬化伪影校正方法研究".原子能科学技术:Atomic Energy Science and Technology 48.7(2014):1314-1320. |
入库方式： OAI收割
来源：高能物理研究所
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