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4Hegt H A, Haye R J, Khan N A. A high performance license plate recognition system [ A ]. IEEE International Conference on Systems, Man, and Cybernetics [ C]. 1998,5.4357-4362.
5Comelli P, Ferragina P, Granieri M N, et al. Optical recognition of motor vehicle license plates [ J]. IEEE Transactions on Vehicular Technology, 1995,44(4) :790-799.
6Wen C-Y ,Yu C-C,Hun Z-D. A 3-D transformation to improve the legibility of license plate numbers [ J ]. Journal of Forensic Sciences, 2002,47(3) :578 -585.
7Hegt H A, Haye R J, Khan N A. A high performance license plate recognition system [ A ]. IEEE International Conference on Systems, Man, and Cybernetics [C]. 1998,5. 4357 - 4362.
8Comelli P, Ferragina P, Granieri M N, et al. Optical recognition of motor vehicle license plates [ J]. IEEE Transactions on Vehicular Technology, 1995,44(4) :790 -799.