Shijian Lu Chew Lim Tan Script and Language Identification in Noisy and Degraded Document Images. 14-24 2008 30 IEEE Trans. Pattern Anal. Mach. Intell. 1 http://doi.ieeecomputersociety.org/10.1109/TPAMI.2007.1158 db/journals/pami/pami30.html#ShijianT08