Hiroshi Shimanuki Jien Kato Toyohide Watanabe Extracting Features of Paper-made Objects Recognized from Origami Books Based on Design Knowledge. 1203-1207 2007 conf/icdar/2007 ICDAR http://doi.ieeecomputersociety.org/10.1109/ICDAR.2007.113 db/conf/icdar/icdar2007.html#ShimanukiKW07