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Automatic License Plate Recognition (ALPR) is becoming a popular study area and is applied in many fields such as transportation or smart city. However, there are still several limitations when applying many current methods to practical…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Quang Huy Che , Tung Do Thanh , Cuong Truong Van

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

In autonomous driving, place recognition is critical for global localization in GPS-denied environments. LiDAR and radar-based place recognition methods have garnered increasing attention, as LiDAR provides precise ranging, whereas radar…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Zhangshuo Qi , Luqi Cheng , Zijie Zhou , Guangming Xiong

Place recognition is essential to maintain global consistency in large-scale localization systems. While research in urban environments has progressed significantly using LiDARs or cameras, applications in natural forest-like environments…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Yanqing Shen , Turcan Tuna , Marco Hutter , Cesar Cadena , Nanning Zheng

All-weather autonomy is critical for autonomous driving, which necessitates reliable localization across diverse scenarios. While LiDAR place recognition is widely deployed for this task, its performance degrades in adverse weather.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zhangshuo Qi , Jingyi Xu , Luqi Cheng , Shichen Wen , Guangming Xiong

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

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

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

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

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

This paper proposes LPRNet - end-to-end method for Automatic License Plate Recognition without preliminary character segmentation. Our approach is inspired by recent breakthroughs in Deep Neural Networks, and works in real-time with…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Sergey Zherzdev , Alexey Gruzdev

In this paper, we propose a new image-based visual place recognition (VPR) framework by exploiting the structural cues in bird's-eye view (BEV) from a single monocular camera. The motivation arises from two key observations about place…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Fudong Ge , Yiwei Zhang , Shuhan Shen , Yue Wang , Weiming Hu , Jin Gao

Robust visual place recognition (VPR) requires scene representations that are invariant to various environmental challenges such as seasonal changes and variations due to ambient lighting conditions during day and night. Moreover, a…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Unnat Jain , Vinay P. Namboodiri , Gaurav Pandey

Ensuring accurate localization of robots in environments without GPS capability is a challenging task. Visual Place Recognition (VPR) techniques can potentially achieve this goal, but existing RGB-based methods are sensitive to changes in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yujia Lin , Nicholas Evans

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

In this paper, we propose a real-time and accurate automatic license plate recognition (ALPR) approach. Our study illustrates the outstanding design of ALPR with four insights: (1) the resampling-based cascaded framework is beneficial to…

Computer Vision and Pattern Recognition · Computer Science 2021-06-18 Yi Wang , Zhen-Peng Bian , Yunhao Zhou , Lap-Pui Chau

We propose an automatic framework for toll collection, consisting of three steps: vehicle type recognition, license plate localization, and reading. However, each of the three steps becomes non-trivial due to image variations caused by…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Muhammad Usama , Hafeez Anwar , Abbas Anwar , Saeed Anwar

Super-resolution (SR) techniques play a pivotal role in enhancing the quality of low-resolution images, particularly for applications such as security and surveillance, where accurate license plate recognition is crucial. This study…

Image and Video Processing · Electrical Eng. & Systems 2025-09-04 Abderrezzaq Sendjasni , Mohamed-Chaker Larabi

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

Visual place recognition (VPR) remains challenging due to significant viewpoint changes and appearance variations. Mainstream works tackle these challenges by developing various feature aggregation methods to transform deep features into…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Teng Wang , Lingquan Meng , Lei Cheng , Changyin Sun