6JUNG K. Neural network-based text location in color image[J], pattern recognition Letters,2001(22):1503-1515.
7SURAL S, DAS P K. Fuzzy hough transform and an MLP with fuzzy input/output for character recognition[J]. Fuzzy Sets and Systems, 1999:489 -497.
8WANG Feng, MAN Li Chun, WANG Bang Ping, et al. Fuzzy-based algorithm for color recognition of license plates [ J ]. Pattern Recognition Letters, 2008 (29) : 1007 - 1020.