1. Department of Computer Science, Central China Normal University, Wuhan Hubei 430079, China 2. School of Mathematics and Statistics, Central China Normal University, Wuhan Hubei 430079, China
YU Ying DONG Cai-lin. Invariant feature extraction of amount Chinese characters based on Ridgelet transform[J]. Journal of Computer Applications, 2011, 31(12): 3403-3406.