[1] Hardic R C,Boncelet C G. LUM filters:a class rank order based filters for smoothing and sharpening [J].IEEE Trans Signal Processing,1993,41(3): 1061-1076.
[2] Li Xiangji,Ding Runtao,Cai Jing. Order-statistical edge enhancing filters for noisy images [J].Journal of Tianjin University,1999,32(6): 687-690.
[3] Qin Peng,Ding Runtao. Ordering threshold switching median filter [J].Journal of Image and Graphics,2004,9(4): 412-416.
[4] Zhu Fenggang,Zhu Xuetian. Study on the de-noising of chromatographic signals using the self-adaptive median filter [J].PACA,Part B:Chemical Analysis,2004,40(4): 200-203.
[5] Liu Limei,Sun Yurong,Li Li. Research of median filter technology [J].Journal of Yunnan Normal University,2004,24(1): 23-27.
[6] Chen Yang,Chen Rongjuan,Guo Yinghui. MATLAB 6.X Graphic Programming And Image Processing [M].Xidian University Press,2002.
[7] Miu Lina,Pan Jinxiao,Han Yan. The influence of the number of detectors and projections on the accuracy of CT reconstruction [J].Journal of Test And Measurement Technology,2002,16(4): 302-304.