Real Time Implementation of a License Plate Location Recognition System Based on Adaptive Morphology
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 26، شماره: 11
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 881
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شناسه ملی سند علمی:
JR_IJE-26-11_001
تاریخ نمایه سازی: 17 خرداد 1393
چکیده مقاله:
License plate recognition (LPR) using morphology has the advantage of higher resistance to changes of brightness, high speed processing, and low complexity. However, these approaches are sensitive to thedistance of the plate from the camera and imaging angle. Various assumptions reported in other worksmight be unrealistic, and cause major problems in practical experiences. In this paper we considered morphological approaches and improved them using adaptive techniques in order to provide more compatibility with practical applications. We examined the developed system on several car plateimage databases with different conditions such as different camera distance, and different car views. The average achieved rate of success was 89.95% for all car plate location recognition, which is more than 6.0% improvement in comparison to previous morphological methods. We further developed and implemented an FPGA realization of the pre-processing stage of the system which is the main computation load of our LPR system.
کلیدواژه ها:
License Plate Recognition ، Car Plate Location Recognition ، Real Time Implementation ، Adapted Morphology
نویسندگان
m Ashourian
Department of Electrical Engineering, Majlesi Branch, Islamic Azad University, Majlesi, Isfahan, Iran
n Daneshmandpour
Department of Electrical Engineering, Majlesi Branch, Islamic Azad University, Majlesi, Isfahan, Iran
o Sharifi Tehrani
Department of Electrical Engineering, Majlesi Branch, Islamic Azad University, Majlesi, Isfahan, Iran
p Moallem
Department of Electrical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran