Query-by-Sketch Image Retrieval Using Similarity in Stroke Order. - Takashi Hisamori; Toru Arikawa; Gosuke Ohashi (IEICE Trans. Inf. Syst., 2010)

Query-by-Sketch Image Retrieval Using Edge Relation Histogram. - Yoshiki Kumagai; Toru Arikawa (MVA, 2011)