节点文献
正电子CT三维成象方法
An Algorithm for Three-Dimensional Imaging in the Positron Camera
【摘要】 本文阐述依据平行丝室检测的二维信息,实现滤波反投影成象的数学方法。介绍伪三维和全三维两种图象重建方式,以及一种适于采用的点响应函数定义。此外,给出全三维法的参数设计和计算步骤。
【Abstract】 A mathematical algorithm of back-projection filtered for image reconstructions using two-dimensional signals detected from parallel multiwire proportional chambers is described. The approaches of pseudo three-dimensional and full three-dimensional image reconstractions are introduced, and the available point response functions are defined as well.
【关键词】 正电子相机;
多丝室;
图象重建;
滤波及投影;
发射型CT;
【Key words】 Positron camera; Multiwire proportional chamber; Image reconstruction; Filter bac-kprojection; ECT;
【Key words】 Positron camera; Multiwire proportional chamber; Image reconstruction; Filter bac-kprojection; ECT;
- 【文献出处】 核电子学与探测技术 ,Nuclear Electronics & Detection Technology , 编辑部邮箱 ,1986年05期
- 【被引频次】1
- 【下载频次】17