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

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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
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 shu
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Received: 2008-12-17
Revised: 2009-04-02
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An ART iterative reconstruction algorithm for computed tomography of diffraction enhanced imaging

    Corresponding author: HUANG Zhi-Feng,

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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