A Preprocessing Method for NaXi Pictograph Character Recognition. - Hai Guo; Jing-ying Zhao; Ming-jun Da (J. Convergence Inf. Technol., 2010)

NaXi Pictographs Edge Detection Using Lifting Wavelet Transform. - Hai Guo; Jing-ying Zhao; Ming-jun Da; Xiao Niu Li (J. Convergence Inf. Technol., 2010)