An ART iterative reconstruction algorithm for computed tomography of diffraction enhanced imaging

被引：8

作者：

Wang Zhen-Tian ^{[1
,2
]}

Zhang Li ^{[1
,2
]}

Huang Zhi-Feng ^{[1
,2
]}

Kang Ke-Jun ^{[1
,2
]}

Chen Zhi-Qiang ^{[1
,2
]}

Fang Qiao-Guang ^{[1
,2
]}

Zhu Pei-Ping ^{[3
]}

机构：

[1] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Key Lab Particle & Radiat Imaging, Minist Educ, Beijing 100084, Peoples R China

[3] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS C | 2009年 / 33卷 / 11期

基金：

中国国家自然科学基金;

关键词：

diffraction enhanced imaging; algebra reconstruction technique; phase contrast imaging; REFRACTION; EXTRACTION;

D O I：

10.1088/1674-1137/33/11/009

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

X-ray diffraction enhanced imaging (DEI) has extremely high sensitivity for weakly absorbing low-samples in medical and biological fields. In this paper, we propose an Algebra Reconstruction Technique (ART) iterative reconstruction algorithm for computed tomography of diffraction enhanced imaging (DEI-CT). An Ordered Subsets (OS) technique is used to accelerate the ART reconstruction. Few-view reconstruction is also studied, and a partial differential equation (PDE) type filter which has the ability of edge-preserving and denoising is used to improve the image quality and eliminate the artifacts. The proposed algorithm is validated with both the numerical simulations and the experiment at the Beijing synchrotron radiation facility (BSRF).

引用

页码：975 / 980

页数：6

共 15 条

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