MAO Bao-lin， CHEN Yong-li， XIAO Da-yu， KANG Yan. Metal Artifacts Reduction in CT Images via Redundant Representation[J]. Journal of Northeastern University:Natural Science, 2013, 34(1): 48-51.
[1]Kalender W A，Hebel R，Ebersberger J.Reduction of CT artifacts caused by metallic implants［J］.Radiology，1987，164:576-577. [2]Bazalova M，Beaulieu L，Palefsky S，et al.Correction of CT artifacts and its influence on Monte Carlo dose calculations［J］.Medical Physics，2007，34:2119-2132. [3]Duan X H，Zhang L，Xiao Y S.Metal artifact reduction in CT images by sinogram TV inpainting［C］//2008 IEEE Nuclear Science Symposium and Medical Imaging Conference.Dresden:IEEE，2008:3450-3452. [4]Zhang X，Xing L，Wang J.CT metal artifact reduction by dual constrained optimizations［J］.International Journal of Radiation Oncology Biology Physics，2010，78(3):S726-S727. [5]Yazdi M，Beaulieu L.A novel approach for reducing metal artifacts due to metallic dental implants［C］//IEEE Nuclear Science Symposium Conference Record.San Diego，2006:2260-2263. [6]Wang G，Snyder D L，O’Sullivan J A，et al.Iterative deblurring for CT metal artifact reduction［J］.IEEE Transactions on Medical Imaging，1996，15:657-664. [7]Kennedy J A，Israel O，Frenkel A，et al.The reduction of artifacts due to metal hip implants in CT-attenuation corrected PET images from hybrid PET/CT scanners［J］.Medical ＆ Biological Engineering ＆ Computing，2007，45:553-562. [8]Donoho D.Compressed sensing［J］.IEEE Transactions on Information Theory，2006，52(4):1289-1306. [9]Choi J Y，Kim M W，Seong W，et al.Compressed sensing metal artifact removal in dental CT［C］//IEEE International Symposium on Biomedical Imaging:From Nano to Macro.New York:IEEE，2009:334-337. [10]Elad M， Aharon M.Image denoising via sparse and redundant representation over learned dictionaries［J］.IEEE Transactions on Image Processing，2006，15(12):3736-3745. [11]Fadili M J，Starck J L，Murtagh F.Inpainting and zooming using sparse representations［J］.The Computer Journal，2009，52(1):64-79. [12]Tropp J，Gilbert A.Signal recovery from random measurement via orthogonal matching pursuit［J］.IEEE Transactions on Information Theory，2007，53(12):4655-4666.(上接第43页)终分别趋向于某一稳定水平，相应地，软件的复杂度也在逐步下降并在某一水平保持相对稳定或基本达到动态平衡.
