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Adoption of AI driven techniques in public services remains low due to challenges related to accuracy and speed of information at population scale. Computer vision techniques for traffic monitoring have not gained much popularity despite…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Anmol Singhal Navya Singhal

This work details Sighthounds fully automated license plate detection and recognition system. The core technology of the system is built using a sequence of deep Convolutional Neural Networks (CNNs) interlaced with accurate and efficient…

Computer Vision and Pattern Recognition · Computer Science 2017-03-30 Syed Zain Masood , Guang Shu , Afshin Dehghan , Enrique G. Ortiz

This paper presents a new approach for the automatic license plate recognition, which includes the SIFT algorithm in step to locate the plate in the input image. In this new approach, besides the comparison of the features obtained with the…

Computer Vision and Pattern Recognition · Computer Science 2013-03-08 Francisco Assis da Silva , Almir Olivette Artero , Maria Stela Veludo de Paiva , Ricardo Luis Barbosa

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

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

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

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

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) has been the focus of many researches in the past years. In general, ALPR is divided into the following problems: detection of on-track vehicles, license plates detection, segmention of license…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Gabriel Resende Gonçalves , Sirlene Pio Gomes da Silva , David Menotti , William Robson Schwartz

Automatic Number Plate Recognition (ALPR) is a system for automatically identifying the license plates of any vehicle. This process is important for tracking, ticketing, and any billing system, among other things. With the use of…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Md Abdullah Al Nasim , Atiqul Islam Chowdhury , Jannatun Naeem Muna , Faisal Muhammad Shah

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

Visual place recognition (VPR) is one of the research hotspots in robotics, which uses visual information to locate robots. Recently, the hierarchical two-stage VPR methods have become popular in this field due to the trade-off between…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Feng Lu , Lijun Zhang , Shuting Dong , Baifan Chen , Chun Yuan

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

Automatic Number Plate Recognition System (ANPRS) is a mass surveillance embedded system that recognizes the number plate of the vehicle. This system is generally used for traffic management applications. It should be very efficient in…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Zuhaib Akhtar , Rashid Ali

Benefiting from the rapid development of convolutional neural networks, the performance of car license plate detection and recognition has been largely improved. Nonetheless, most existing methods solve detection and recognition problems…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Shuxin Qin , Sijiang Liu

Automatic License Plate Recognition (ALPR) systems have shown remarkable performance on license plates (LPs) from multiple regions due to advances in deep learning and the increasing availability of datasets. The evaluation of deep ALPR…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Rayson Laroca , Everton V. Cardoso , Diego R. Lucio , Valter Estevam , David Menotti

Large-scale visual place recognition (VPR) is inherently challenging because not all visual cues in the image are beneficial to the task. In order to highlight the task-relevant visual cues in the feature embedding, the existing attention…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Guohao Peng , Yufeng Yue , Jun Zhang , Zhenyu Wu , Xiaoyu Tang , Danwei Wang

In real-world traffic surveillance, vehicle images captured under adverse weather, poor lighting, or high-speed motion often suffer from severe noise and blur. Such degradations significantly reduce the accuracy of license plate recognition…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Cuong Nguyen , Dung T. Tran , Hong Nguyen , Xuan-Vu Phan , Nam-Phong Nguyen

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

Lane detection is critical for autonomous driving and ad-vanced driver assistance systems (ADAS). While recent methods like CLRNet achieve strong performance, they struggle under adverse con-ditions such as extreme weather, illumination…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Kunyang Li , Ming Hou