“…There have been a number of papers that focus on the general banknote recognition problem (Gai, Liu, Liu & Tang, 2009;Nishimura, 2009;Kim, Lee, Suhngm, Ryu & Lee, 2013;Ahangaryan, Mohammadpour & Kianisarkaleh, 2012;Wu, Zhang, Ma, Wang & Jin, 2009;Lee & Kim, 2003;Sun & Li, 2008;Wu, Zhang & Liu, 2012;Omatu, Yoshioka & Kosaka 2009;Jin, Song, Tang & Du, 2008;Qian, Qian & Zhang, 2006;Sako & Miyatake, 2004;Takeda & Nishikage, 2000;Sajal, Kamruzzaman & Jewel, 2008;Lee, Jang, Oh & Yu, 2011;Qian, Zuo, He, Tian & Zhang, 2011;Hassanpour & Farahabadi, 2009;Jahangir & Chowdhury, 2007;Kosaka, Omatsu & Fujinaka, 2001) without considering the blind as users.…”