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

WANG Zhen-Tian; ZHANG Li; HUANG Zhi-Feng; KANG Ke-Jun; CHEN Zhi-Qiang; FANG Qiao-Guang; ZHU Pei-Ping

doi:10.1088/1674-1137/33/11/009

Chinese Physics C> 2009, Vol. 33> Issue(11) : 975-980 DOI: 10.1088/1674-1137/33/11/009

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

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Abstract：
X-ray diffraction enhanced imaging (DEI) has extremely high sensitivity for weakly absorbing low-Z 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).

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WANG Zhen-Tian, ZHANG Li, HUANG Zhi-Feng, KANG Ke-Jun, CHEN Zhi-Qiang, FANG Qiao-Guang and ZHU Pei-Ping. An ART iterative reconstruction algorithm for computed tomography of diffraction enhanced imaging[J]. Chinese Physics C, 2009, 33(11): 975-980. doi: 10.1088/1674-1137/33/11/009

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Received: 2008-12-17
Revised: 2009-04-02

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: HUANG Zhi-Feng,

Received Date: 2008-12-17

Accepted Date: 2009-04-02

Available Online: 2009-11-05

Abstract: X-ray diffraction enhanced imaging (DEI) has extremely high sensitivity for weakly absorbing low-Z 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).

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

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