Accuracy Improvement and Objective Evaluation of Annotation Extraction from Printed Documents. - Tomohiro Nakai; Kazumasa Iwata; Koichi Kise (Document Analysis Systems, 2008)

Capturing Digital Ink as Retrieving Fragments of Document Images. - Kazumasa Iwata; Koichi Kise; Tomohiro Nakai; Masakazu Iwamura; Seiichi Uchida; Shinichiro Omachi (ICDAR, 2009)

Expansion of queries and databases for improving the retrieval accuracy of document portions: an application to a camera-pen system. - Koichi Kise; Megumi Chikano; Kazumasa Iwata; Masakazu Iwamura; Seiichi Uchida; Shinichiro Omachi (Document Analysis Systems, 2010)

Tracking and Retrieval of Pen Tip Positions for an Intelligent Camera Pen. - Kazumasa Iwata; Koichi Kise; Masakazu Iwamura; Seiichi Uchida; Shinichiro Omachi (ICFHR, 2010)