1. Performance evaluation of pattern classifiers for handwritten character recognition;Liu;Int. J. Document Anal. Recognition,2002
2. Handwritten digit recognition: benchmarking of state-of-the-art techniques;Liu;Pattern Recognition,2003
3. Aspect ratio adaptive normalization for handwritten character recognition;Liu,2000
4. M. Hamanaka, K. Yamada, J. Tsukumo, Normalization-cooperated feature extraction method for handprinted Kanji character recognition, Proceedings of the Third International Workshop on Frontiers of Handwriting Recognition, Buffalo, NY, 1993, pp. 343–348.
5. Quantitative analysis of preprocessing techniques for the recognition of handprinted characters;Gudessen;Pattern Recognition,1976