A Learning Pseudo Bayes Discriminant Method Based on Difference Distribution of Feature Vectors. - Hiroaki Takebe; Koji Kurokawa; Yutaka Katsuyama; Satoshi Naoi (Document Analysis Systems, 2002)

Highly accurate retrieval method of Japanese document images through a combination of morphological analysis and OCR. - Yutaka Katsuyama; Hiroaki Takebe; Koji Kurokawa; Takahiro Saitoh; Satoshi Naoi (Document Recognition and Retrieval, 2002)

A Multi-Stage Strategy to Perspective Rectification for Mobile Phone Camera-Based Document Images. - Xu-Cheng Yin; Jun Sun 004; Satoshi Naoi; Katsuhito Fujimoto; Yusaku Fujii; Koji Kurokawa; Hiroaki Takebe (ICDAR, 2007)