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Dissertations / Theses on the topic 'License Plate Recognition System'

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Published: 7 June 2025

Last updated: 2 August 2025

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1

Liaqat, Ahmad Gull. "Mobile Real-Time License Plate Recognition." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-15944.

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License plate recognition (LPR) system plays an important role in numerous applications, such as parking accounting systems, traffic law enforcement, road monitoring, expressway toll system, electronic-police system, and security systems. In recent years, there has been a lot of research in license plate recognition, and many recognition systems have been proposed and used. But these systems have been developed for computers. In this project, we developed a mobile LPR system for Android Operating System (OS). LPR involves three main components: license plate detection, character segmentation a

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Gunaydin, Ali Gokay. "A Constraint Based Real-time License Plate Recognition System." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608195/index.pdf.

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License Plate Recognition (LPR) systems are frequently utilized in various access controls and security applications. In this thesis, an experimental constraint based real-time License Plate Recognition system is designed, and implemented in Java platform. Many of the available constraint based methods worked under strict restrictions such as plate color, fixed illumination and designated routes, whereas, only the license plate geometry and format constraints are used in this developed system. These constraints are built on top of the current Turkish license plate regulations. The plate locali

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ALVARENGA, EDUARDO PIMENTEL DE. "OPTICAL CHARACTER RECOGNITION FOR AUTOMATED LICENSE PLATE RECOGNITION SYSTEMS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2014. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=28690@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Sistemas de reconhecimento automático de placas (ALPR na sigla em inglês) são geralmente utilizados em aplicações como controle de tráfego, estacionamento, monitoração de faixas exclusivas entre outras aplicações. A estrutura básica de um sistema ALPR pode ser dividida em quatro etapas principais: aquisição da imagem, localização da placa em uma foto ou frame de vídeo; segmentação dos caracteres que compõe a placa; e reconhecimento destes car

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Chow, Jiunn Nan, and 周俊男. "License Plate Recognition System." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/35737856446114458856.

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碩士<br>國立中山大學<br>資訊工程研究所<br>83<br>In this thesis, we develop a license plate recognition system. The system first automatically locate the location of license plate ,and then use the mathematical morphology to do recognition. Traditional character recognition systems use segmentation, thinning, stroke detection and so on. From the strokes relationship, they use a similarity measure to select best matched character. In this thesis, we use the mathematical morphology method to extract the prop

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Hsu, Po-Cheng, and 許伯誠. "License Plate Recognition System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/05825350829541238670.

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碩士<br>國立高雄第一科技大學<br>電腦與通訊工程所<br>95<br>License plate recognition system can be used extensively in management of parking lot and appliance of stolen car searched、road controlled，car controlled of police unit. However, one of the reasons of unable to popularize is that there is still a lot to improve in distinguish technology. For example, license plate orient rate、word distinguish rate、resist background noise ability, etc. Therefore, the thesis of this research paper is to improve the accuracy of auto license plate recognition system. Due to the full-developed image processing technology nowad

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Tsai, Chien-Tsai, and 蔡建材. "Automatic License Plate Recognition system." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/48475416792944540060.

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碩士<br>中華大學<br>資訊工程學系碩士班<br>93<br>A real-time automatic license plate recognition system is proposed in this paper to identify the license plate quickly and accurately in the unrestricted environment, e.g. different lighting conditions and various vehicles. The proposed system mainly includes two procedures: license plate locating and character recognition. In license plates locating procedure, we convert the color image into grey level data first. Then apply the morphology technique to find out the location of license plate. The objective of the research is to increase the recognition rate of

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Tseng, Chien-hao, and 曾建豪. "Smartphone License Plate Recognition System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/36788628071050399131.

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碩士<br>國立中央大學<br>資訊工程學系碩士在職專班<br>100<br>In this thesis, we develop a license plate recognition system on Android smart phone. The proposed method consists of five stages: image pre-processing, license plate locating, orientation correction, character segmentation, and character recognition. The major properties are: (i) Segmentation of license plates is invariant to size of license plates. (ii) Segmentation of license plates is invariant to color of cars. (iii) The license plate extraction method is based on length/width proportion and color of license plates. (iv) Segmentation of license plate

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D'Souza, Aaron, and Saprem Dalal. "Automatic License plate Recognition System." Thesis, 2011. http://ethesis.nitrkl.ac.in/2482/1/Automatic_License_plate_Recognition_System(107cs040%2C107cs030).pdf.

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Intelligence surveillance is an important commodity in traffic-based systems. Automatic License Plate Recognition (ALPR) is a challenging area of research. This work deals with problems related to artificial intelligence, neural networks and machine vision in the construction of an automatic license plate recognition (ALPR) system. This is done using mathematical principles and algorithms. These intelligent systems help in traffic monitoring during rush hours, road safety, commercial applications like in car parking lots and law enforcement. In this paper, a license plate recognition system is

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Wu, Meng-Tsung, and 吳孟璁. "Automatic Vehicle License Plate Recognition System." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/96706197081543255915.

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碩士<br>淡江大學<br>資訊工程學系<br>86<br>In this thesis, we develop an effective and fast automatic vehicle license plate recognition system. From a digital vehicle image without presetting the location and size of the license plate, the proposed system can automatically find the location of the plate, isolate the letters and digits occurring in the plate, and then recognize the characters. The system includes three parts: license plate location, character isolation, and character recognition. Images

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OU, YUAN-LIANG, and 歐原良. "A Portable License Plate Recognition System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/37920587265579440474.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>100<br>Nowadays, most researches on the license plate recognition system are implemented by computers with fixed cameras. However, most of them operate under restricted conditions, such as static background, fixed shooting angle, and limited number of cars. In this research, as few constraints as possible on the working environment are considered. Our study focuses on the development of a real-time multiple vehicles license plate recognition system on embedded devices with algorithms in low computational complexity and camera shooting angle in large range. It consist

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Song, Yong-Sheng, and 宋永勝. "License Plate Recognition and Management System." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/aqrwhy.

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碩士<br>樹德科技大學<br>電腦與通訊系碩士班<br>106<br>In this paper, we design a license plate identification management system for the control of vehicles. In this system architecture, including a web page with a manager management function system, and a mobile APP that views and controls push notifications. We use a high-quality camera to capture the vehicle''s license plate and recognize the image alphanumeric, after identification, the data such as alphanumeric data is transmitted to the server side together with the captured image. The server software receives the data and compares it with the li

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Lu, Chien-Te, and 呂建德. "Implementation of License Plate Recognition System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/ne2t59.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>97<br>The purpose of this thesis is to explain how the indoor parking system uses the license plate recognition to shorten the user''s waiting time. License plate locating and segmentation of the plate characters are quite time consuming in license plate recognition. So this thesis presents high-speed License plate locating and segmentation of the plate characters methods. First, decrease and gray the license plate image which will decrease the operational volume. Then use Bottom hat transform to indicate the bottom value of the original image and locate the license

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Chen, Kai-Min, and 陳楷旻. "Shadow Removal Method for License Plate Recognition and Its Android Electronic License Plate Recognition System Implementation." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/96096944989924891612.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>101<br>In License Plate Recognition (LPR) system, License Plate Detection (LPD) and binarization are both key image processing steps. But, under indoor or outdoor scene environments, LPD and binarization are both error-prone to the shadow interference caused by the shadow occlusion on the license plate scene images. Especially for diverse applications of potable and fixed LPR systems, shadow occlusion and interference issue resulting from uneven lighting condition is always necessary to be overcome. So this thesis proposes two shadow removal methods to solve the s

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Guo, Ming-Feng, and 郭銘峰. "An Efficiency Recognition System for License Plate." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/70870433128232365966.

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碩士<br>國立中興大學<br>應用數學系所<br>105<br>Although the popularity of transportation brings great convenience to people, it still causes a lot of problems. According to the statistics of motor vehicle registration from the Ministry of Transportation and Communications in Taiwan in 2017, there are increases and decreases in the number of motor vehicles, road traffic accidents, and road traffic offences. However, most of these traffic accidents and traffic offences are handled manually. For the sake of convenience, if these problems can be dealt with a complete system, a large amount of manpower in these

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Chen, Hsiang-Chieh, and 陳翔傑. "Automatic vehicle license plate recognition system design." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/26720851603323695840.

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碩士<br>國立中央大學<br>電機工程研究所<br>93<br>Recently, vehicle license plate recognition system plays an important role in intelligent transportation system. This paper will propose an algorithm with low computation and high recognition rate algorithm to realize a real time license plate recognition system. We divide our system into three stages, including license plate locating, characters segmentation and characters recognition. A novel method for extracting license plate in complex background is proposed. Due to the influence of lighting effects, tilt or dirty of the license plate, we also create a met

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Chen, I.-Chih, and 陳奕志. "Constructing Embedded Car License Plate Recognition System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/91717196909075534200.

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碩士<br>淡江大學<br>資訊工程學系碩士班<br>93<br>Embedded System is a computing platform designed for specific purpose. Because it’s task is much simpler than personal computer which is designed for general computing purpose, Embedded System can simplify its hardware architecture, cost down its hardware price, produce smaller device and low energy consumption. It also fits to be mobile computing platform. But Embedded System is constrained by its simple architecture; its processing power is much slower than personal computer. This paper purpose a software porting procedure between personal computer and Embedd

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CHIOU, CHIH-KUO, and 邱智國. "Implementation of A License Plate Recognition System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/dkfvjb.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>95<br>The development of transportation is very important to a development country because the manipulation of economy need to depend it to propitious operation. Therefore, to build the Intelligent Transportation System (ITS) by means of electronic with information, network. The purpose of the ITS is to improve traffic efficiency and decrease traffic crowded and protect traffic accident. The thesis is to combine techniques of image processing and machine vision to build a license plate recognition system for ITS. The thesis propose a satisfactory strategic to improv

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Huang, Zhung-Long, and 黃正龍. "License Plate Recognition System of Dynamic Vehicle." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/81257750719474967974.

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碩士<br>國立中正大學<br>電機工程研究所<br>92<br>Design of a vehicle recognition system has been investigated for many years in the recognition field. It has been extensively and practicality used in many applications, such as parking lot auto management , automatic tollgate , traffic management , and searching stolen car, and so on. The system can be categorized in two methods, static and dynamic system. In early design many researchers emphasized static systems. First, the car must be parked at a suitable position. Then, the car license plate need to be compensated for the brightness and made som

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Huang, Pin-Kai, and 黃品凱. "License Plate Recognition System Using Scattering Transform." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/50371626420278519354.

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碩士<br>國立暨南國際大學<br>資訊工程學系<br>104<br>In this thesis, we proposed a new method for recognizing the Taiwanese car license plates issued since 2012.The proposed method consists of a license plate detection step, a license plate rectification step, a character segmentation step, a feature extraction step, and a character recognition step. The license plate detection step is accomplished by using the OpenALPR, an open source license plate recognition software package.The four corners of the detected license plate are used to compute a homography matrix to rectify the license plate image. A model-base

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Feng, Hsin-Tsung, and 馮信璁. "Embedded System Implementation for License Plate Recognition." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/71762219451264254073.

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碩士<br>元智大學<br>電機工程學系<br>98<br>In this paper, we present a license plate recognition system in the embedded system platform. Our system employs the Ada-Boosting technique to train the model in order to detect the license plate. After the license plate is detected, this system will segment the license plate into some characters and will extract the features. Subsequently, we use the SVM classifier to classify the feature classes so as to recognize the accurate character’s meaning. Finally, these meaningful characters are checked by the mechanism of syntax analysis in order to differentiate t

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Su, Tsung-mao, and 蘇琮貿. "License Plate Recognition System based on FPGA." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/64871133549872386168.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>100<br>License plate recognition system has been widely researched and developed in the academic sphere and commercial area. The license plate recognition consists of three parts including license plate detection, character segmentation, and character recognition. License plate position uses image processing techniques which include grayscale, thresholding, mathematical morphology, and monnected-component labeling. These image processing have to accessed the neighboring pixels frequently to achieve intended mathematical formulas. To reduce the image data transfers, r

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Chan, Yang-Kian, and 曾揚建. "A Research on Plate Localization, Preprocessing and Recognition of License Plate Recognition System." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/43798686065653582756.

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碩士<br>國立交通大學<br>電機與控制工程系<br>87<br>The license plate recognition system could be applied to various uses, such as parking lots management system, tolls of freeways, tracking stolen vehicles, etc. A complete license plate recognition system is integrated by five main procedures, including plate localization, image preprocessing, horizontal-axis calibration, vertical-axis characters segmentation and recognition. This Thesis focuses on plate localization, image preprocessing and recognition which have been analyzed and designed in detail. In the part of plate localization, we use image

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Ting-HuaHsu and 許庭樺. "Applying Deep Learning in License Plate Recognition System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80569052251254235815.

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碩士<br>國立成功大學<br>資訊工程學系<br>104<br>License Plate Recognition (LPR) is a very important part of an intelligent transportation system. The LPR is broadly used in many applications, such as highway toll station and car park management. From 2012, Directorate-General of Highway (Taiwan) pursues a new type of license plate, which is changed with the type of font and extra one more digit than existing license plate. In order to solve the recognition on the new license plate (7 digits) and existing license plate (6 digits), we need to redesign a model to made these two types of license plates can be co

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Wang, Ching-Chung, and 王精忠. "THE STUDY OF CAR LICENSE PLATE RECOGNITION SYSTEM." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/84668349117339820560.

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碩士<br>大同大學<br>通訊工程研究所<br>93<br>Along with economical grow up and commerce activity vigorous development, people for the automobile need is more and more, although government for the traffic construction is very popular, but in the crowded Taiwan area, the question of parking space not enough is a fact of without saying, so how to manage parking lots efficiently and increasing usability of the parking lots that is our concerned question. This thesis proposed the license plate recognition system, includes license plate locating, image binarization, calibration of license plate, character se

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Lue, Hsin-Te, and 呂信德. "Recognition System of License Plate Using Multi-Experts." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/11971891100975928632.

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碩士<br>國立中央大學<br>資訊工程研究所<br>90<br>The development of transportation is one of very important strategies in a developing country because the manipulation of economy, politics, and society has to rely it to normally operate. Therefore, modern countries start to investigate how to combine electronics with information, communication and network technologies to build the Intelligent Transportation System (ITS). The purpose of developing ITS is to improve traffic efficiency and environmental protection. The goal of this thesis is to use the automatic technologies of image processing and computer visi

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Chang, Wei-Shang, and 張瑋珊. "License Plate Recognition System for Moving Video Streams." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/k8spz8.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>99<br>License plate recognition systems have been developed for many years. Most of them are installed with video cameras at fixed locations such as highway toll stations or parking lots. However, very few studies have focused on license plate recognition system with moving camera. In Taiwan, the density of vehicles is ranked top in the world. Taiwan is also known as the highest motorcycle-density country in the world. Presently the police investigating stolen vehicles use system by manually entering license plate numbers to check if they are stolen vehicles or not.

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Wu, Yi-Hsuan, and 吳宜軒. "A Vision-based Car License Plate Recognition System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/93542526634672435652.

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碩士<br>亞洲大學<br>資訊工程學系碩士班<br>97<br>This paper presents a license plate recognition system based on the computer vision, including five parts which are image pre-processing, license plate locating, character segmentation and recognition. In the image pre-processing part, the RGB images obtained from the camera are changed into the gray images. After the gray images are changed into the binaries images, and the noises are filtered by using the median filter. In the license plate locating part, we predict the possible location of the license plate in the binaries image and acquire it with using the

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Kao, Sho-tsung, and 高碩聰. "An autonomous license plate detection and recognition system." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/72090163125968579734.

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碩士<br>國立臺南大學<br>數位學習科技學系碩士班<br>96<br>The paper proposed an autonomous license plate detection and recognition system with computer vision. The system consists of four subsystems: car detection subsystem, plate extraction subsystem, character division subsystem and character recognition subsystem. Car detection subsystem uses MMADR and NDDR of dynamic image to find the location of the cars on the screen. Plate extraction subsystem uses the characteristics of the plates and algorithm used to search plates to extract plate; character division subsystem combines Tophat, Labeling and LRE to automat

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Huang, Ching-I., and 黃錦溢. "Design of the Vehicle License Plate Recognition System." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/64503660703529505480.

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碩士<br>淡江大學<br>電機工程學系<br>88<br>The main idea of the thesis is to realize a system of vehicle license plate recognition which is effective and fast-calculating. It can be widely used in the management of parking lot , automatic fee charge and checking on stolen vehicle. Because of the variation on environment is large and the recognized vehicle is not easy to be controlled, so we have to look into a recognition system widely suiting for each state. In this thesis, we use two steps of sliding window to locate speedily the demarcation of the Vehicle Identification Number (VIN) according

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Yang, Chih-Chiang, and 楊志強. "Automatic License Plate Recognition System for Patrolling Vehicles." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/05839643474555607012.

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碩士<br>中原大學<br>資訊工程研究所<br>102<br>License plates are considered the first important information for vehicle-related crime investigation (e.g., vehicle theft, etc.). Conventional investigation requires the investigator (policeman) to manually enter the license plate number for suspicious vehicles which remains tedious and labor-intensive. The objective of this study was to develop an Automatic license plate recognition system for patrolling vehicles. We explored the idea to provide an automatic system by installing a surveillance camera (e.g., a vehicle video recorder) on a patrolling vehicle (e.

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彭裕航. "Automatic Recognition System of the Vehicle License Plate." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/30879426620739533634.

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碩士<br>中華大學<br>機械工程學系碩士班<br>96<br>In this dissertation, we construct the License Plate Recognition system by using PC as a platform and image process techniques. A new character structure hierarchy is proposed and the correlated character characteristic value and character coding are defined. Also, character thinning processing is applied in the system to identify the English characters and digits on the car license plate. 　　The experiments of this system include two parts. The first part is to locate the license plate in images and divide characters on the plate. By using the following techni

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Yi, Hsiang-Chen, and 伊象楨. "Automatic license plate recognition system using neural networks." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/23180934976831793562.

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碩士<br>國立中興大學<br>電機工程學系所<br>95<br>This thesis discusses the locating, segmentation, and recognition of the license plates of cars.In the procedure of locating license plates, the input image is first transformed into an image with a pre-specified resolution. Then the Sobel edge detector is adopted to find the edge map of the image. After that, the edge map is scanned to locate the regions with frequent variations in black and white. The threshold in the Sobel edge detector is dynamically adjusted so that the number of characters in the license plate is correct. Spatial transformation is utilize

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Li, Guo-Yan, and 李國彥. "A STUDY ON VEHICLE LICENSE PLATE RECOGNITION SYSTEM." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/01514432990904315362.

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碩士<br>大同大學<br>通訊工程研究所<br>92<br>ABSTRACT Differencial method is the simplest edge detection method. The alogrithm process is fewer but has a bad result because there are some other image edge would affect the license plate location. In this thesis, we make some improvement in the differential method to make the plate position easier to be located in the image. The recognition system includes the license plate location, binarization, the segmentation of the license plate words and the word recognition. In the license plate location, we use horizontal shifty differential method to reinforce the e

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Guan, Tzung-Bau, and 官宗. "DSP Embedded System for Automatic License Plate Recognition." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/70360773031682143774.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>89<br>The research in recognition system of license plate have been last for several years. It could be apply to automatic management of parking garage and stolen cars checking. In the past the system described above usually realize with PC. In this thesis, we proposed a light and handy, low cost inserted recognition system of license plate. We realize it with digital signal processor (TMS320 C6211), CMOS image sensor and word type LCD daughter board. Using image sensor CMOS and automatic control of exposure to capture the images, transmitting the data to DSP. Then

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Wang, Chen-Hsing, and 王振興. "A Multi-target Vehicle License Plate Recognition System." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/75321595345475877107.

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碩士<br>元智大學<br>資訊管理研究所<br>91<br>The study of vehicle license plate recognition has been undergone for decades, but studies for identifying vehicle colors, license plates for multi-target vehicles, and license plates for motorcycles are still being greatly missed. It is considered important to study the license plate recognition also for motorcycles since in many countries the number of motorcycles is even more than that of cars. Since the pictures taken by surveillance cameras hardly contain only a single vehicle, it is inevitable to analyze and identify all the vehicles appeared in the picture

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Ou, Shih-Tsung, and 歐世聰. "The study of car license plate recognition system." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/09289236464793638879.

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碩士<br>明新科技大學<br>電子工程研究所<br>98<br>The recognition of license plate system has been resear ched for more than ten years. The recognition rate could not be raised efficiently and be utilized in daily as a result of hardware and software development was unstable in the initial stage. More amd more recognition of license plate system be not applied in daily until hardware and software were developing quickly recently. The most important things to recognition of license plate system are high recognition rate efficiently and take a few time as less as possible. Now all related research are depended

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Wang, Shih-Hao, and 王世豪. "Embedded real-time system for license plate recognition." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/78146729079790814161.

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碩士<br>雲林科技大學<br>電機工程系碩士班<br>98<br>Traditionally, when building system for license plate recognition, need to solve problems, such as system integration and maintenance...etc, but the advantage of embedded system of license plate recognition to not only low cost but also easy maintenance. In this paper, ADSP-BF561 as a development platform for embedded real-time system for license plate recognition. Real-time system for license plate recognition can be divided into three subsystems, namely, license plate location, character segmentation and character recognition. Part of license plate location,

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Zeng, Mao-Hong, and 曾貿鴻. "An intelligent Real-Time License Plate Recognition System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/45032957724646732429.

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碩士<br>明道大學<br>資訊傳播學系碩士班<br>100<br>License plate recognition (LPR) system has been successfully applied to many applications such as unattended parking, stolen vehicle verification and security control. LPR system is generally composed of three parts: location of the license plate region (LP detection), segmentation of the plate characters and recognition of each character. This work focuses on the LP detection because this part is very crucial in the LPR system. In recent years, learning-based algorithm has been applied widely into the LP detection. For example, train several simple classifier

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Lin, Heather, and 林明慧. "An Adaptive Illumination for License Plate Recognition System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/90701221742117147237.

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碩士<br>淡江大學<br>資訊工程學系碩士班<br>100<br>Over recent years, as the vehicle license plate recognition system technology continues to improve, the actual potential applications are also on the rise. Common application examples are stolen cars identification, traffic violations ticketing, and the toll collecting systems of man-free parking lots. Yet in practical implementation, a major reason that the license plate recognition system is unable to rapidly and expeditiously become prevalent lies in how the recognition technology leaves room to be improved upon, such as the license plate positioning ratio,

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Tsai, Min Yen, and 蔡旻諺. "Batch License Plate Recognition System Using Wavelet Transformation." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/34075807164993714187.

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碩士<br>長庚大學<br>資訊管理學系<br>101<br>In case of transportation increased steadily, there are more problems has appear. For example: license plate, it’s not only the representative of automobile but also searching crime or violation issues by using license plate information. For example: stolen cars and violation of parking. In this paper, we provide license plate recognition system by using wavelet transform to investigate the application of license plate recognition system. Also provide equipment that be able to use camera mobile or video camera to search license plate information quickly. There a

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Wang, En-Slang, and 王恩祥. "Motorcycle License Plate Recognition System Using Deep Learning." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/adjxgj.

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碩士<br>國立臺灣海洋大學<br>資訊工程學系<br>106<br>Surveillance systems have become an important part of the public sphere, monitoring traffic flow, accidents, legal infractions, noise pollution caused by modified motorcycles, etc. The macroscopic approach to policing primarily relies on law enforcement officials identifying offenses with the naked eye, or the visuals captured by hundreds of surveillance cameras and public vigilance, an inefficient combination that stymies civil infraction citation rate. Future visual recognition will be based on machine learning through repetitive training and prediction. Th

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Chhabada, Sandeep Singh. "Heuristics for license plate localization and hardware implementation of Automatic License Plate Recognition (ALPR) system." Thesis, 2012. http://ethesis.nitrkl.ac.in/3352/4/Heuristics_for_license_plate_localization_and_hardware_implementation_of_Automatic_License_Plate_Recognition_(ALPR)_system.pdf.

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The project “Heuristics for license plate localization and hardware implementation of Automatic License Plate Recognition (ALPR) system” deals with detection and recognition of license plate from a captured front view of any car. The work follows all the steps in an ALPR system like preprocessing, segmentation, and license plate identification, extraction of individual characters and finally recognition of each character to form a string to match with the registered License plate numbers. The main contribution in the work is to expedite the number plate isolation from a set of segmented candid

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Jong-Jyh, Tash, and 蔡宗志. "Character Partition. Normalization and Recognition Research of License Plate Recognition System." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/15381096599400703564.

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碩士<br>國立交通大學<br>電機與控制工程系<br>87<br>On the increase of car, so how to use automatic license plate recognition system for car''s conservation is important. Although the history of license plate recognition system research is long, the system still has many faults. In our study, we develop a license plate recognition system whose hardware and software update conveniently. The research of thesis focuses on Character Partition Horizontal Normalization and Recognition. The purpose of Horizontal Normalization is to cut the region that is out of the character horizontal edge. And let the hor

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Ho, Kun-ta, and 何坤達. "Implementation of License Plate Recognition on Embedded ARM System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/s4uzbt.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>94<br>A license plate recognition system is composed of three processing modules: license plate detection, character segmentation, and character recognition. This paper presents a method of vehicle license plate image detection based on wavelet transform, character segmentation using connected components labeling, and recognition based on template matching. The proposed system consists of four main stages. First, we convert images to 8-bit grayscale and adjust the images to proper size. And then, a wavelet transform based method is used to get important contrast feat

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Shih, Wan-Chieh, and 施琬婕. "The Study of Template-Based License Plate Recognition System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/ba83hw.

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碩士<br>大葉大學<br>資訊工程學系碩士班<br>102<br>In this thesis, we study a semi-automated license plate recognition system. First shoot plate image by artificially, then we can use the computer and the license plate recognition system to identify the car as the license plate. The proposed system consists of three stages: license plate location, character segmentation and character recognition. 　　License plate location achieved by the color transformation, Prewitt mask, binarization, median filter and morphology operations. The 8-connected label and threshold are applied to select the license plate. 　　Charac

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Hsu, Cheng-Yu, and 許正育. "Development of License Plate Recognition Using Leon3 Embedded System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/u8gh8m.

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碩士<br>國立臺北科技大學<br>電機工程系研究所<br>102<br>The applications have to get diversity in the field of license plate recognition for the past few years; and that the embedded systems are development in the field of mobile phones and tablet personal computer flourishly. The performances have been enhanced to be applied in a small parking area. In this thesis, the Leon3 system based on a chip Silicon Intellectual Property uses the same bus with ARM system on a chip which the Xilinx company is used the implement the FPGA board. The compiler, which is provided with Leon3, is applied to the image processing.

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Ho, Cheng-Yu, and 何承祐. "Intelligent Speed Bump System with Dynamic License Plate Recognition." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/4jd9wj.

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碩士<br>國立中正大學<br>電機工程研究所<br>103<br>This thesis presents an intelligent speed bump system incorporated with the dynamic license plate recognition technique. It is able to decide the enforcement of speed bump based on the vehicle speed and identiﬁcation. As a part of intelligent transportation systems to provide the traﬃc ﬂow control, the proposed technique makes the driving safer and more comfortable. In the dynamic license plate recognition stage, the adaptive tracking is carried out for license plate allocation, followed by character segmentation and identiﬁcation. ”Tesseract OCR” is then used

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HAGHSHENAS, MAJID, and 麥. 杰. "Automobile License Plate Recognition System Based on Moment Invariants." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/g74n7d.

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碩士<br>中華大學<br>電機工程學系<br>105<br>A license plate recognition (LPR) system is designed to recognize the alphabets and numbers on the plates of vehicles, and its goals are for security, parking lot management, and intelligent transportation, etc. The proposed LPR system is based on image processing techniques to detect, locate, and segment the license plate in a digital input image, and recognize the alphabets and numbers on the plate. The acquired information by the LPR system is stored for further applications. The proposed method first captures the digital image of an automobile. Vehicle number

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邱秉毅. "Vehicle License Plate Recognition System Using Artificial neural networks." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/89677692600367338640.

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碩士<br>明新科技大學<br>電子工程研究所<br>94<br>In the modern technological society, the use of the vehicle is frequent, many sorts of questions derived out. For example: Management of the parking area , inquiry of the stolen car ,etc., these questions need management; In order to make it efficient Management of the parking area need Vehicle License Plate Recognition System. In this paper, in order to reduce human power and money, also to improve the average accuracy, in this paper, the research Vehicle License Plate Recognition System is focus in restricted area. Excellent result: In the decision-theoretic

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Hsu, Yu-Pin, and 許育賓. "License Plate Recognition System Using High-order Central moment." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/20792306491260860578.

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碩士<br>國立高雄第一科技大學<br>電腦與通訊工程所<br>98<br>At present the technology of digital image processing was already common , applies in License Plate Recognition System is also widespread . The License Plate Recognition System in this paper is mainly divided into three sections , license plate location , character takeout and character distinguishing . In the license plate location section , we transform the input color image into fixed resolution gray image by using digital image processing . And then we use Sobel edge detection method to find the edge of license plate ; in character takeout section , we

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