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License plate recognition (LPR) is important for traffic law enforcement, crime investigation, and surveillance. However, license plate areas in dash cam images often suffer from low resolution, motion blur, and glare, which make accurate…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Kihyun Na , Junseok Oh , Youngkwan Cho , Bumjin Kim , Sungmin Cho , Jinyoung Choi , Injung Kim

Automatic License Plate Recognition (ALPR) faces a major challenge when dealing with illegible license plates (LPs). While reconstruction methods such as super-resolution (SR) have emerged, the core issue of recognizing these low-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Lucas Wojcik , Gabriel E. Lima , Valfride Nascimento , Eduil Nascimento , Rayson Laroca , David Menotti

Automatic license plate recognition plays a crucial role in modern transportation systems such as for traffic monitoring and vehicle violation detection. In real-world scenarios, license plate recognition still faces many challenges and is…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Song-Ren Wang , Hong-Yang Shih , Zheng-Yi Shen , Wen-Kai Tai

Recent years have seen significant developments in the field of License Plate Recognition (LPR) through the integration of deep learning techniques and the increasing availability of training data. Nevertheless, reconstructing license…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Valfride Nascimento , Rayson Laroca , Jorge de A. Lambert , William Robson Schwartz , David Menotti

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…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Valfride Nascimento , Rayson Laroca , Jorge de A. Lambert , William Robson Schwartz , David Menotti

License plate recognition is the key component to many automatic traffic control systems. It enables the automatic identification of vehicles in many applications. Such systems must be able to identify vehicles from images taken in various…

Computer Vision and Pattern Recognition · Computer Science 2019-02-15 Andrej Jokic , Nikola Vukovic

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

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

Despite significant advancements in License Plate Recognition (LPR) through deep learning, most improvements rely on high-resolution images with clear characters. This scenario does not reflect real-world conditions where traffic…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Valfride Nascimento , Rayson Laroca , Rafael O. Ribeiro , William Robson Schwartz , David Menotti

This work presents a pattern-aware framework for automatic license plate recognition (ALPR), designed to operate reliably across diverse plate layouts and challenging real-world conditions. The proposed system consists of a modern,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Elham Shabaninia , Fatemeh Asadi-zeydabadi , Hossein Nezamabadi-pour

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

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

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

We evaluated a lightweight Convolutional Neural Network (CNN) called LPRNet [1] for automatic License Plate Recognition (LPR). We evaluated the algorithm on two datasets, one composed of real license plate images and the other of synthetic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Marcel Del Castillo Velarde , Gissel Velarde

License Plate Recognition (LPR) plays a critical role in various applications, such as toll collection, parking management, and traffic law enforcement. Although LPR has witnessed significant advancements through the development of deep…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Rayson Laroca , Luiz A. Zanlorensi , Valter Estevam , Rodrigo Minetto , David Menotti

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

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

Despite the evident practical importance of license plate recognition (LPR), corresponding research is limited by the volume of publicly available datasets due to privacy regulations such as the General Data Protection Regulation (GDPR). To…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Mariia Shpir , Nadiya Shvai , Amir Nakib

Public datasets have played a key role in advancing the state of the art in License Plate Recognition (LPR). Although dataset bias has been recognized as a severe problem in the computer vision community, it has been largely overlooked in…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Rayson Laroca , Marcelo Santos , Valter Estevam , Eduardo Luz , David Menotti

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…

Computer Vision and Pattern Recognition · Computer Science 2019-10-11 Younkwan Lee , Jiwon Jun , Yoojin Hong , Moongu Jeon
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