THE RADON TRANSFORM FOR TERAHERTZ COMPUTED TOMOGRAPHY INCORPORATING THE BEAM SHAPE

被引：0
|
作者：
Lumbeeck, Lars-Paul [1 ]
Paramonov, Pavel [1 ]
Sijbers, Jan [1 ]
De Beenhouwer, Jan [1 ]
机构：
[1] Univ Antwerp, Dept Phys, Imec VisionLab, Antwerp, Belgium
来源：
2020 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) | 2020年
关键词：
Computed tomography; Terahertz imaging; Radon transform; Beam shape;
D O I：
暂无
中图分类号：
TB8 [摄影技术];
学科分类号：
0804 ;
摘要：
In this paper, we study the influence of the beam shape of Terahertz (THz) radiation on the image formation in THz computed tomography and how to account for it in the reconstruction process. This is accomplished by first considering the beam shape in the forward projection using a modified Radon transform and then inverting this transform to construct new inversion techniques. Simulation experiments show that, compared to conventional back projection, directly incorporating the beam shape in the Radon transform can significantly improve image quality in terms of the mean squared error and the Structural Similarity Index.
引用
收藏
页码：3040 / 3044
页数：5
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