(1) Yide Ma; Yong Tian; Jiuwen Zhang; Wavelet-Domain Image Denoising Using Contextual Hidden Markov Tree Model，IEEE International Conference on Automation and Logistics(ICAL 2007), jinan, Shandong, China, 2007-08-10至2007-08-12.

(2) Yong Tian; Yide Ma;Contextual Hidden Markov Tree Model Image Denoising using new Nonuniform Quincunx Directional Filter Banks，Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing(IIHMSP 2007)，taiwan, China, 2007-11-26至2007-11-28.