均匀介质中γ成像三维图像重建
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- 英文论文题名：Reconstruction of 3D image in homogeneous medium using 2D gamma image
- 论文作者：朱宁 ; 韦孟伏 ; 温俊海 ; 党晓军
- 英文论文作者：ZHU Ning ; WEN Junhai ; DANG Xiaojun ; WEI Mengfu ; China Academy of Engineering Physics ; School of Life Science and Technology ; Beijing Institute of Technology
- 年：2014
- 作者机构：中国工程物理研究院;北京理工大学生命学院;
- 论文关键词：γ成像 ; ART ; 平行束 ; 均匀介质
- 英文论文关键词：Gamma imaging ; ART ; parallel beam ; homogeneous medium
- 会议召开时间：2014-08-13
- 会议录名称：第十七届全国核电子学与核探测技术学术年会论文集
- 语种：中文
- 分类号：TP391.41
- 学会代码：HDZX
- 会议名称：第十七届全国核电子学与核探测技术学术年会
- 会议地点：中国甘肃兰州
- 主办单位：中国电子学会、中国核学会核电子学与核探测技术分会
- 学会名称：中国电子学会核电子学与核探测技术分会
- 页数：6
- 文件大小：612k
- 原文格式：D
- 会议级别：全国
摘要
本文采用平行束模型,在代数重建法(ART)的基础上,加入衰减补偿,实现了均匀介质γ成像的三维图像重建。对比加入衰减补偿和未加入衰减补偿所重建放射源的位置和强度分布,得出介质对γ相机成像三维图像重建的影响。通过MC模拟数据的重建结果来看,本文提出的方案是切实可行的。
Based on the model of parallel beam and the algebraic reconstruction techniques(ART), we achieve the reconstruction of 3D image by using 2D gamma image in homogeneous medium in this paper. By comparing the different position and intensity distribution of reconstructed image with the decision whether to add the attenuation compensation, we have come to the influence of homogeneous medium to 3D gamma image reconstruction. MCNP simulation data reconstruction results show the proposed scheme is feasible.
Based on the model of parallel beam and the algebraic reconstruction techniques(ART), we achieve the reconstruction of 3D image by using 2D gamma image in homogeneous medium in this paper. By comparing the different position and intensity distribution of reconstructed image with the decision whether to add the attenuation compensation, we have come to the influence of homogeneous medium to 3D gamma image reconstruction. MCNP simulation data reconstruction results show the proposed scheme is feasible.
引文
[1]Christian J F,Squillante M R,Woodring M,et al.The 45th INMM Annual Meeting,Orlando Florida,July 18–22,2004.Portable Video/Gamma Camera for Surveillance,Safeguards,Treaty Verification and Area Monitoring.
[2]党晓军.γ图像重建放射源三维分布的物理模型设计,核技术,2012.2
[3]张顺利.ART算法高质量重建研究,核电子学与探测技术,2007.7
[4]刘郁纪.工业CT中ART算法权因子的研究,甘肃科学学报,2010.9
[5]Nirvikar.Reconstruction with Parallel Projections using ART,International Journal of Computer Applications,2011,Vol.13(1),pp.36
[6]Kadrmas D J.Truncation artifact reduction in transmission CT for improved SPECT attenuation compensation,Physics in medicine and biology,1995,Vol.40(6),pp.1085-104
[2]党晓军.γ图像重建放射源三维分布的物理模型设计,核技术,2012.2
[3]张顺利.ART算法高质量重建研究,核电子学与探测技术,2007.7
[4]刘郁纪.工业CT中ART算法权因子的研究,甘肃科学学报,2010.9
[5]Nirvikar.Reconstruction with Parallel Projections using ART,International Journal of Computer Applications,2011,Vol.13(1),pp.36
[6]Kadrmas D J.Truncation artifact reduction in transmission CT for improved SPECT attenuation compensation,Physics in medicine and biology,1995,Vol.40(6),pp.1085-104