.png){kind=icon}
返回
Adaptive Projection Selection for Computed Tomography
.png){kind=icon}
PRE
AI
DOI：10.1109/TIP.2013.2280185.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The number of projections is a critical factor in tomographic imaging. The larger the number, the better the quality of the reconstructed image; however, it increases the radiation dose delivered to the patient. Therefore, it is important to keep the number of projections as small as possible. Traditionally, the projections are taken by moving the x-ray source around the patient at uniform angular steps. Taking projections at nonuniform steps may result in better images as compared with that obtained using uniform projections. This paper describes two different approaches that adjust the step size to adaptively select the angle of projections. The first one is based on the spectral richness of the acquired projections and the second relies on the amount of new information added by successive projections. The superior performance of the two proposed methods over the uniform projection scheme is demonstrated through simulation results using both phantom and real images.
Keyword:
Computed tomography
low-dose CT
iterative reconstruction
adaptive projection selection
fan beam geometry
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
13.7
论文数:
1.0W
被引数:
8.4W
机构
引用论文
分享收藏分享收藏A novel extension of the parallel-beam projection-slice theorem to divergent fan-beam and cone-beam projections将平行束投影切片定理扩展到发散的扇形束和锥形束投影.png)
MEDICAL PHYSICS
MEDICAL PHYSICSIF3.2
PREAI
分享收藏Effect of Silicon Conductivity and HF/H2O2 Ratio on Morphology of Silicon Nanostructures Obtained via Metal-Assisted Chemical Etching硅电导率和HF/H2O2比对通过金属辅助化学蚀刻获得的硅纳米结构形貌的影响
PREAI
分享收藏Normative pediatric visual acuity using single surrounded HOTV optotypes on the Electronic Visual Acuity Tester following the Amblyopia Treatment Study protocol根据弱视治疗研究方案，在电子视力测试仪上使用单个包围的HOTV视标的儿童视力
OAAI
OAAI分享收藏
查看更多内容