[1] [1] J. H. Kinney, Q. C. Johnson, M. C. Nichols et al.. X-ray microtomography on beamline X at SSRL ［J］. Rev. Sci. Instrum., 1989, 60(7): 2471～2474

[2] [2] Yiannis Kyriakou, Daniel Prell, Willi A Kalender. Ring artifact correction for high-resolution micro CT［J］. Phys. Med. Biol., 2009, 54: 385～391

[3] [3] Jiang Shiping, Li Meifang, Chen Yang et al.. In-line X-ray phase contrast computerized tomography［J］. Acta Optica Sinica, 2008, 28(3): 609～612

[4] [4] Gao Hongyi, Xie Honglan, Chen Jianwen et al.. Experlinental research on hard X-ray phase-contrast imaging［J］. Chinese J. Lasers, 2005, 32(2): 167～169

[5] [5] Li Junjiang, Hu Shaoxing, Li Baolei et al.. Ring artifact correction for industrial CT images［J］. J. Beijing University of Aeronautics and Astronautics, 2007, 33(11): 1378～1382

[6] [6] M. A. Yousuf, M. Asaduzzaman. An efficient ring artifact reduction method based on projection data for micro-CT images［J］. J. Sci. Res., 2010, 2(1): 37～45

[7] [7] Fu Jian, Lu Hongnian. A correction method for ring artifact s in fan X-ray industrial computerized tomography［J］. Opt. & Precision Engng., 2002, 10(6): 542～546

[8] [8] J. Sijbers, A. Postnov. Reduction of ring artifacts in high resolution micro-CT reconstructions[J]. Phys. Med. Biol., 2004, 49(14): 247～253

[9] [9] Xia Xiongjun. Reduction of Radiation Image Noise and CT Ring Artifacts［D］.Beijing: Tsinghua University, 2007. 38～46

[10] [10] C. Raven. Numerical removal of ring artifacts in micro tomography ［J］. Rev. Sci. Inst., 1998, 69(8): 2978～2980

[11] [11] Yu Xiaoe, Luo Junfang, Chen Wufan. Ring artifact correction of CT images based on sinogram［J］. J. th Fourth Military Medical University, 2009, 30(3): 207～209

[12] [12] M. Rivers. Tutorial introduction to X-ray computed micro tomography data processing［EB/O L］.Chicago: University of Chicago, 1998

[13] [13] Li Baolei, Yang Min, Fu Jian et al.. Two ring artifact correction methods for computed tomography［J］. Acta Optica Sinica, 2009, 29(7): 1849～1853

[14] [14] Wang Jue, Huang Suhong, Cai Yufang. Ring artifact correction for CT images [J]. Opt. & Precision Engng., 2010, 18(5): 1126～1132

[15] [15] R. C. Gonzalez, R. E. Woods, S. L. Eddings. Digital Image Processing Using Matlab［M］. Ruan Qiuping Transl.. Beijing: Publishing House of Electronics Industry, 2006. 78～88