Automated detection and classification of liver fibrosis stages using contourlet transform and nonlinear features. - U. Rajendra Acharya; U. Raghavendra; Joel E. W. Koh; Kristen M. Meiburger; Edward J. Ciaccio; Yuki Hagiwara; Filippo Molinari; Wai Ling Leong; Anushya Vijayananthan; Nur Adura Yaakup; Mohd Kamil Bin Mohd Fabell; Chai Hong Yeong (Comput. Methods Programs Biomed., 2018)