Smart automated traffic enforcement solutions have been gaining popularity in recent years. These solutions are ubiquitously used for seat-belt violation detection, red-light violation detection and speed violation detection purposes. Highly accurate license plate recognition is an indispensable part of these systems. However, general license plate recognition systems require high resolution images for high performance. In this study, we propose a novel license plate recognition method for general roadway surveillance cameras. Proposed segmentation free license plate recognition algorithm utilizes deep learning based object detection techniques in the character detection and recognition process. Proposed method has been tested on 2000 images captured on a roadway.
Military Institute of Science & Technology (MIST)（军事科学技术研究院）
Computer vision coupled with Deep Learning (DL) techniques bring out a substantial prospect in the field of traffic control, monitoring and law enforcing activities. This paper presents a YOLOv4 object detection model in which the Convolutional Neural Network (CNN) is trained and tuned for detecting the license plate of the vehicles of Bangladesh and recognizing characters using tesseract from the detected license plates. Here we also present a Graphical User Interface (GUI) based on Tkinter, a python package. The license plate detection model is trained with mean average precision (mAP) of 90…
University of Missouri-Columbia（密苏里大学哥伦比亚分校）；WSP USA（美国WSP公司）
Manual traffic surveillance can be a daunting task as Traffic Management Centers operate a myriad of cameras installed over a network. Injecting some level of automation could help lighten the workload of human operators performing manual surveillance and facilitate making proactive decisions which would reduce the impact of incidents and recurring congestion on roadways. This article presents a novel approach to automatically monitor real time traffic footage using deep convolutional neural networks and a stand-alone graphical user interface. The authors describe the results of research recei…
National Institute of Technology, Warangal（瓦朗加尔国家理工学院）
Vehicle theft is arguably one of the fastest-growing types of crime in India. In some of the urban areas, vehicle theft cases are believed to be around 100 each day. Identification of stolen vehicles in such precarious scenarios is not possible using traditional methods like manual checking and radio frequency identification(RFID) based technologies. This paper presents a deep learning based automatic traffic surveillance system for the detection of stolen/suspicious cars from the closed circuit television(CCTV) camera footage. It mainly comprises of four parts: Select-Detector, Image Quality …
Gwangju Institute of Science and Technology（光州科学技术院）
Although most current license plate (LP) recognition applications have been significantly advanced, they are still limited to ideal environments where training data are carefully annotated with constrained scenes. In this paper, we propose a novel license plate recognition method to handle unconstrained real world traffic scenes. To overcome these difficulties, we use adversarial super-resolution (SR), and one-stage character segmentation and recognition. Combined with a deep convolutional network based on VGG-net, our method provides simple but reasonable training procedure. Moreover, we intr…
JD AI Research, JD.com（京东人工智能研究院，京东）；Beijing University of Posts and Telecommunications（北京邮电大学）
This paper is focused on the task of searching for a specific vehicle that appeared in the surveillance networks. Existing methods usually assume the vehicle images are well cropped from the surveillance videos, then use visual attributes, like colors and types, or license plate numbers to match the target vehicle in the image set. However, a complete vehicle search system should consider the problems of vehicle detection, representation, indexing, storage, matching, and so on. Besides, attribute-based search cannot accurately find the same vehicle due to intra-instance changes in different ca…
Sri Venkateswara College of Engineering（斯里文卡特斯瓦拉工程学院）
Over the last decade, there has been a spike in criminal activity all around the globe. According to the Indian police department, vehicle theft is one of the least solved offenses, and almost 19% of all recorded cases are related to motor vehicle theft. To overcome these adversaries, we propose a real-time vehicle surveillance system, which detects and tracks the suspect vehicle using the CCTV video feed. The proposed system extracts various attributes of the vehicle such as Make, Model, Color, License plate number, and type of the license plate. Various image processing and deep learning alg…
University of South Florida（南佛罗里达大学）；Center for Urban Transportation Research（城市交通研究中心）；Florida Department of Transportation（佛罗里达州交通部）
There is a rapid growth of applications of Unmanned Aerial Vehicles (UAVs) in traffic management, such as traffic surveillance, monitoring, and incident detection. However, the existing literature lacks solutions to real-time incident detection while addressing privacy issues in practice. This study explored real-time vehicle detection algorithms on both visual and infrared cameras and conducted experiments comparing their performance. Red Green Blue (RGB) videos and thermal images were collected from a UAS platform along highways in the Tampa, Florida, area. Experiments were designed to quant…
VRAE: Vertical Residual Autoencoder for License Plate Denoising and Deblurring
Ha Noi University of Science and Technology（河内科学技术大学）；Center of Environmental Intelligence（环境智能中心）；VinUniversity（文大学）；University of Southern California（南加州大学）
Universiti Tunku Abdul Rahman (UTAR)（拉曼大学）；MIMOS Berhad
Automated car license plate recognition systems are developed and applied for purpose of facilitating the surveillance, law enforcement, access control and intelligent transportation monitoring with least human intervention. In this paper, an algorithm based on SIFT feature points clustering and matching is proposed to address the issue of recognizing Malaysian special plates. These special plates do not follow the format of standard car plates as they may contain italic, cursive, connected and small letters. The algorithm is tested with 150 Malaysian special plate images under different envir…
In this work we explore the previously proposed approach of direct blind deconvolution and denoising with convolutional neural networks in a situation where the blur kernels are partially constrained. We focus on blurred images from a real-life traffic surveillance system, on which we, for the first time, demonstrate that neural networks trained on artificial data provide superior reconstruction quality on real images compared to traditional blind deconvolution methods. The training data is easy to obtain by blurring sharp photos from a target system with a very rough approximation of the expe…
Federal University of Paraná（巴拉那联邦大学）；Brazilian Federal Police（巴西联邦警察）；Federal University of Minas Gerais（米纳斯吉拉斯联邦大学）
The License Plate Recognition (LPR) field has made impressive advances in the last decade due to novel deep learning approaches combined with the increased availability of training data. However, it still has some open issues, especially when the data come from low-resolution (LR) and low-quality images/videos, as in surveillance systems. This work focuses on license plate (LP) reconstruction in LR and low-quality images. We present a Single-Image Super-Resolution (SISR) approach that extends the attention/transformer module concept by exploiting the capabilities of PixelShuffle layers and tha…
Recognizing a license plate clearly while seeing a surveillance camera snapshot is often important in cases where the troublemaker vehicle(s) have to be identified. In many real world situations, these images are blurred due to fast motion of the vehicle and cannot be recognized by the human eye. For this kind of blurring, the kernel involved can be said to be a linear uniform convolution described by its angle and length. We propose a new de-blurring technique in this paper to parametrically estimate the kernel as accurately as possible with emphasis on the length estimation process. We use a…
License plate detection and recognition (LPDR) is of growing importance for enabling intelligent transportation and ensuring the security and safety of the cities. However, LPDR faces a big challenge in a practical environment. The license plates can have extremely diverse sizes, fonts and colors, and the plate images are usually of poor quality caused by skewed capturing angles, uneven lighting, occlusion, and blurring. In applications such as surveillance, it often requires fast processing. To enable real-time and accurate license plate recognition, in this work, we propose a set of techniqu…
Enhancing License Plate Super-Resolution: A Layout-Aware and Character-Driven Approach
Federal University of Paraná（巴拉那联邦大学）；Pontifical Catholic University of Paraná（巴拉那天主教大学）；Brazilian Federal Police（巴西联邦警察）；Federal University of Minas Gerais（米纳斯吉拉斯联邦大学）
Toward Advancing License Plate Super-Resolution in Real-World Scenarios: A Dataset and Benchmark
Federal University of Paraná（巴西南里奥格兰德联邦大学）；Brazilian Federal Police（巴西联邦警察）；Federal University of Minas Gerais（巴西矿务联邦大学）；Pontifical Catholic University of Paraná（帕尔米拉天主教大学）
ICPR 2026 Competition on Low-Resolution License Plate Recognition
Federal University of Paraná, Brazil（巴西南里奥格兰德联邦大学）；Pontifical Catholic University of Paraná, Brazil（巴西帕尔米拉天主教大学）；Korea University, Republic of Korea（韩国釜山大学）；University of Information Technology, Vietnam（越南信息科技大学）；Ho Chi Minh University of Technology, Vietnam（越南胡志明技术大学）；Vietnam National University, Vietnam（越南国家大学）；Fudan University, China（复旦大学）；Shanghai Key Laboratory of Multimodal Embodied AI, China（上海多模态具身人工智能重点实验室）；Handong Global University, Republic of Korea（韩国韩东全球大学）
University of Guilan（吉兰大学）；Shahid-Chamran College Technical and Vocational University（沙希德-查姆兰技术与职业大学）；DadeKavan Khazar Pouya company（达德卡万·哈扎尔·普亚公司）
Providing huge amounts of data is a fundamental demand when dealing with Deep Neural Networks (DNNs). Employing these algorithms to solve computer vision problems resulted in the advent of various image datasets to feed the most common visual imagery deep structures, known as Convolutional Neural Networks (CNNs). In this regard, some datasets can be found that contain hundreds or even thousands of images for license plate detection and optical character recognition purposes. However, no publicly available image dataset provides such data for the recognition of Farsi characters used in car lice…
Next-Generation License Plate Detection and Recognition System using YOLOv8
School of Electrical Engineering；Computer Science (SEECS), \ University of Sciences；Ghulam Ishaq Khan Institute of Engineering Sciences \ Technology (GIKI), Topi, District, Swabi, \ Pakhtunkhwa 23460, Pakistan, Email:prorector\
University Of Melbourne（墨尔本大学）；University of Moratuwa（莫拉图瓦大学）；National University of Singapore（新加坡国立大学）
The COVID-19 pandemic has drastically changed accepted norms globally. Within the past year, masks have been used as a public health response to limit the spread of the virus. This sudden change has rendered many face recognition based access control, authentication and surveillance systems ineffective. Official documents such as passports, driving license and national identity cards are enrolled with fully uncovered face images. However, in the current global situation, face matching systems should be able to match these reference images with masked face images. As an example, in an airport o…
