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Automatic License Plate Recognition (ALPR) is a challenging area of research due to its importance to variety of commercial applications. The overall problem may be subdivided into two key modules, firstly, localization of license plates…

Computer Vision and Pattern Recognition · Computer Science 2015-01-26 Satadal Saha , Subhadip Basu , Mita Nasipuri , Dipak Kumar Basu

Modern Automatic License Plate Recognition (ALPR) systems achieve outstanding performance in controlled, well-defined scenarios. However, large-scale real-world usage remains challenging due to low-quality imaging devices, compression…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Lucas Wojcik , Eduardo A. F. Machoski , Eduil Nascimento , Rayson Laroca , David Menotti

Video-based Automatic License Plate Recognition (ALPR) involves extracting vehicle license plate text information from video captures. Traditional systems typically rely heavily on high-end computing resources and utilize multiple frames to…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Victor Nascimento Ribeiro , Nina S. T. Hirata

License plate detection (LPD) is essential for traffic management, vehicle tracking, and law enforcement but faces challenges like variable lighting and diverse font types, impacting accuracy. Traditionally reliant on image processing and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Zahra Ebrahimi Vargoorani , Ching Yee Suen

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…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Md. Saif Hassan Onim , Muhaiminul Islam Akash , Mahmudul Haque , Raiyan Ibne Hafiz

While vehicle license plate recognition (VLPR) is usually done with a sliding window approach, it can have limited performance on datasets with characters that are of variable width. This can be solved by hand-crafting algorithms to…

Computer Vision and Pattern Recognition · Computer Science 2017-01-24 Teik Koon Cheang , Yong Shean Chong , Yong Haur Tay

The issue of Automatic License Plate Recognition (ALPR) has been one of the most challenging issues in recent years. Weather conditions, camera angle of view, lighting conditions, different characters written on license plates, and many…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Soheila Hatami , Majid Sadedel , Farideh Jamali

Robust license plate recognition in unconstrained environments remains a significant challenge, particularly in underrepresented regions with limited data availability and unique visual characteristics, such as Bolivia. Recognition accuracy…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Guillermo Auza Banegas , Diego Calvimontes Vera , Sergio Castro Sandoval , Natalia Condori Peredo , Edwin Salcedo

Automatic License Plate Recognition systems aim to provide a solution for detecting, localizing, and recognizing license plate characters from vehicles appearing in video frames. However, deploying such systems in the real world requires…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Alif Ashrafee , Akib Mohammed Khan , Mohammad Sabik Irbaz , MD Abdullah Al Nasim

Automatic License Plate Recognition (ALPR) is an integral component of an intelligent transport system with extensive applications in secure transportation, vehicle-to-vehicle communication, stolen vehicles detection, traffic violations,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Md. Shahriar Rahman Anuvab , Mishkat Sultana , Md. Atif Hossain , Shashwata Das , Suvarthi Chowdhury , Rafeed Rahman , Dibyo Fabian Dofadar , Shahriar Rahman Rana

Recent advancements in super-resolution for License Plate Recognition (LPR) have sought to address challenges posed by low-resolution (LR) and degraded images in surveillance, traffic monitoring, and forensic applications. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Valfride Nascimento , Gabriel E. Lima , Rafael O. Ribeiro , William Robson Schwartz , Rayson Laroca , David Menotti

Automatic license plate recognition (ALPR) and vehicle make and model recognition underpin intelligent transportation systems, supporting law enforcement, toll collection, and post-incident investigation. Applying these methods to videos…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Pouya Parsa , Keya Li , Kara M. Kockelman , Seongjin Choi

In this paper, we propose an automatic and mechanized license and number plate recognition (LNPR) system which can extract the license plate number of the vehicles passing through a given location using image processing algorithms. No…

Computer Vision and Pattern Recognition · Computer Science 2016-10-17 Hamed Saghaei

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…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Xuewen Yang , Xin Wang

Vehicle tracking is an integral part of intelligent traffic management systems. Previous implementations of vehicle tracking used Global Positioning System(GPS) based systems that gave location of the vehicle of an individual on their…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Lalit Lakshmanan , Yash Vora , Raj Ghate

License plate recognition in open environments is widely applicable across various domains; however, the diversity of license plate types and imaging conditions presents significant challenges. To address the limitations encountered by CNN…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Guangzhu Xu , Zhi Ke , Pengcheng Zuo , Bangjun Lei

License plate recognition (LPR) involves automated systems that utilize cameras and computer vision to read vehicle license plates. Such plates collected through LPR can then be compared against databases to identify stolen vehicles,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Nouar AlDahoul , Myles Joshua Toledo Tan , Raghava Reddy Tera , Hezerul Abdul Karim , Chee How Lim , Manish Kumar Mishra , Yasir Zaki

Most vehicle license plate recognition use neural network techniques to enhance its computing capability. The image of the vehicle license plate is captured and processed to produce a textual output for further processing. This paper…

Computer Vision and Pattern Recognition · Computer Science 2014-01-23 Nuzulha Khilwani Ibrahim , Emaliana Kasmuri , Norazira A Jalil , Mohd Adili Norasikin , Sazilah Salam , Mohamad Riduwan Md Nawawi

Developing a highly accurate automatic license plate recognition system (ALPR) is challenging due to environmental factors such as lighting, rain, and dust. Additional difficulties include high vehicle speeds, varying camera angles, and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Zahra Ebrahimi Vargoorani , Amir Mohammad Ghoreyshi , Ching Yee Suen

Vehicle license plate recognition is a crucial task in intelligent traffic management systems. However, the challenge of achieving accurate recognition persists due to motion blur from fast-moving vehicles. Despite the widespread use of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Haoyan Gong , Yuzheng Feng , Zhenrong Zhang , Xianxu Hou , Jingxin Liu , Siqi Huang , Hongbin Liu