Study of image reconstruction using dynamic grids in tomographic gamma scanning

被引：1
|
作者：
LIU Cheng GU Weiguo * QIAN Nan WANG Dezhong School of Mechanical Engineering
机构：
来源：
Nuclear Science and Techniques | 2012年 / 23卷 / 05期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Tomographic gamma scanning; Emission reconstruction; Transmission reconstruction; Dynamic grids;
D O I：
10.13538/j.1001-8042/nst.23.277-283
中图分类号：
TP391.41 [];
学科分类号：
080203 ;
摘要：
In this paper, a new image reconstruction algorithm employing dynamic grids technique is proposed for tomographic gamma scanning. The key feature of the algorithm is the use of adaptive grid refinement in areas that indicate large values. Simulation results show that the application of dynamic grids has a good performance in emission reconstruction with a distinct advantage in the accurate positioning of the ’hot spots’ and reducing the number of grids, but doesn’t achieve a tangible improvement in transmission reconstruction.
引用
收藏
页码：277 / 283
页数：7
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