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Survey on The Methods Used in The Recognition Part of The License Plate
دراسة الطرائق الخاصة بتمييز ارقام السيارات

Authors: Wesam Bhaya وسام سمير بهيه --- Qasim mohammed قاسم محمد
Journal: Albahir journal مجلة الباهر ISSN: 23125721 Year: 2015 Volume: 2 Issue: 3,4 Pages: 92-101
Publisher: AL-Abbas Holy Shrine العتبة العباسية المقدسة

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Abstract

Abstract License plate recognition has been entered in many critical systems like tracking stolen cars, traffic surveillance and parking management. License plate recognition process consists of three parts; the first part is identifying the position of the license plate, second, segments license plate into individual image characters and the third is recognizing these characters. License plate is influenced by the noise in the real world such as illumination and angle of the camera, so that the accuracy of locating, segmenting and recognizing are affected. There are many methods for each part, choosing any method of them depends on the type of application and its environment as well as the execution time. In this paper, we will survey and study the methods used in recognition part.

ﺍﳋﻼﺻﺔ ﻳﺴﺘﺨﺪﻡ ﲤﻴﺰ ﻟﻮﺣﺎﺕ ﺍﺭﻗﺎﻡ ﺍﻟﺴﻴﺎﺭﺍﺕ ﰲ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺍﻻﻧﻈﻤﺔ ﺍﳊﺴﺎﺳﺔ ﻭﺍﳌﻬﻤﺔ ﻣﺜﻞ ﺗﺘﺒﻊ ﺍﻟﺴﻴﺎﺭﺍﺕ ﺍﳌﴪﻭﻗﺔ، ﺇﺩﺍﺭﺓ ﻣﻮﺍﻗﻒ ﺍﻟﺴﻴﺎﺭﺍﺕ، ﻭﻣﺮﺍﻗﺒﺔ ﺣﺮﻛﺔ ﺍﳌﺮﻭﺭ. ﺗﺘﻜﻮﻥ ﻋﻤﻠﻴﺔ ﲤﻴﺰ ﻟﻮﺣﺎﺕ ﺍﺭﻗﺎﻡ ﺍﻟﺴﻴﺎﺭﺍﺕ ﻣﻦ ﺛﻼﺛﺔ ﻣﺮﺍﺣﻞ؛ ﺍﳌﺮﺣﻠﺔ ﺍﻷﻭﱃ ﻫﻲ ﲢﺪﻳﺪ ﻣﻮﻗﻊ ﺍﻟﻠﻮﺣﺔ، ﻭﺍﳌﺮﺣﻠﺔ ﺍﻟﺜﺎﻧﻴﺔ ﻫﻲ ﲡﺰﺋﺔ ﺍﻟﻠﻮﺣﺔ ﺍﱃ ﺻﻮﺭ ﻣﻔﺮﺩﺓ ﻟﻠﺤﺮﻭﻑ ﻭﺍﻻﺭﻗﺎﻡ ﻭﺍﳌﺮﺣﻠﺔ ﺍﻟﺜﺎﻟﺜﺔ ﻫﻲ ﲤﻴﺰ ﺗﻠﻚ ﺍﳊﺮﻭﻑ ﻭﺍﻻﺭﻗﺎﻡ. ﻟﻮﺣﺔ ﺭﻗﻢ ﺍﻟﺴﻴﺎﺭﺓ ﺗﺘﺄﺛﺮ ﺑﺎﻟﻀﻮﺿﺎﺀ ﰲ ﺍﻟﻌﺎﱂ ﺍﳊﻘﻴﻘﻲ ﻧﺘﻴﺠﺔ ﺍﻹﺿﺎﺀﺓ ﻭﺯﺍﻭﻳﺔ ﺍﻟﻜﺎﻣﲑﺍ، ﻭﺑﺬﻟﻚ ﺗﺘﺄﺛﺮ ﺩﻗﺔ ﺍﻟﺘﺤﺪﻳﺪ ﻭﺍﻟﺘﺠﺰﺋﺔ. ﻫﻨﺎﻙ ﺍﻟﻌﺪﻳﺪ ﻣﻦ ﺍﻟﻄﺮﺍﺋﻖ ﻟﻜﻞ ﻣﺮﺣﻠﺔ، ﻭﺍﺧﺘﻴﺎﺭ ﺃﻱ ﻃﺮﻳﻘﺔ ﻣﻨﻬﺎ ﻳﻌﺘﻤﺪ ﻋﲆ ﻧﻮﻉ ﺍﻟﺘﻄﺒﻴﻖ ﻭﺑﻴﺌﺘﻪ ﻭﻛﺬﻟﻚ ﻭﻗﺖ ﺍﻟﺘﻨﻔﻴﺬ. ﰲ ﻫﺬﺍ ﺍﻟﺒﺤﺚ، ﺳﻮﻑ ﻧﺴﺘﻌﺮﺽ ﻭﻧﺪﺭﺱ ﺍﻷﺳﺎﻟﻴﺐ ﺍﳌﺴﺘﺨﺪﻣﺔ ﰲ ﻣﺮﺣﻠﺔ ﲤﻴﺰ ﺍﳊﺮﻭﻑ ﻭﺍﻻﺭﻗﺎﻡ.

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