Collaborative License Plate Recognition via Association Enhancement Network With Auxiliary Learning and a Unified Benchmark

IF 8.4 1区 计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS
Yifei Deng;Guohao Wang;Chenglong Li;Wei Wang;Cheng Zhang;Jin Tang
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引用次数: 0

Abstract

Since the standard license plate of large vehicle is easily affected by occlusion and stain, the traffic management department introduces the enlarged license plate at the rear of the large vehicle to assist license plate recognition. However, current researches regards standard license plate recognition and enlarged license plate recognition as independent tasks, and do not take advantage of the complementary benefits from the two types of license plates. In this work, we propose a new computer vision task called collaborative license plate recognition, aiming to leverage the complementary advantages of standard and enlarged license plates for achieving more accurate license plate recognition. To achieve this goal, we propose an Association Enhancement Network (AENet), which achieves robust collaborative licence plate recognition by capturing the correlations between characters within a single licence plate and enhancing the associations between two license plates. In particular, we design an association enhancement branch, which supervises the fusion of two licence plate information using the complete licence plate number to mine the association between them. To enhance the representation ability of each type of licence plates, we design an auxiliary learning branch in the training stage, which supervises the learning of individual license plates in the association enhancement between two license plates. In addition, we contribute a comprehensive benchmark dataset called CLPR, which consists of a total of 19,782 standard and enlarged licence plates from 24 provinces in China and covers most of the challenges in real scenarios, for collaborative license plate recognition. Extensive experiments on the proposed CLPR dataset demonstrate the effectiveness of the proposed AENet against several state-of-the-art methods.
借助辅助学习和统一基准,通过关联增强网络实现协作式车牌识别
由于大型车辆的标准车牌容易受到遮挡和污渍的影响,交通管理部门在大型车辆尾部引入了放大车牌来辅助车牌识别。然而,目前的研究将标准车牌识别和放大车牌识别视为独立的任务,没有利用两种车牌的互补优势。在这项工作中,我们提出了一种新的计算机视觉任务--协同车牌识别,旨在利用标准车牌和放大车牌的互补优势,实现更准确的车牌识别。为实现这一目标,我们提出了关联增强网络(AENet),通过捕捉单个车牌内字符之间的关联,增强两个车牌之间的关联,从而实现稳健的协同车牌识别。具体来说,我们设计了一个关联增强分支,它利用完整的车牌号码来挖掘两个车牌之间的关联,从而监督两个车牌信息的融合。为了提高各类车牌的表示能力,我们在训练阶段设计了一个辅助学习分支,在两个车牌的关联增强中监督单个车牌的学习。此外,我们还提供了一个名为 CLPR 的综合基准数据集,该数据集由来自中国 24 个省份的 19782 个标准车牌和放大车牌组成,涵盖了真实场景中协同车牌识别所面临的大部分挑战。在拟议的 CLPR 数据集上进行的大量实验证明,拟议的 AENet 与几种最先进的方法相比非常有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Transactions on Multimedia
IEEE Transactions on Multimedia 工程技术-电信学
CiteScore
11.70
自引率
11.00%
发文量
576
审稿时长
5.5 months
期刊介绍: The IEEE Transactions on Multimedia delves into diverse aspects of multimedia technology and applications, covering circuits, networking, signal processing, systems, software, and systems integration. The scope aligns with the Fields of Interest of the sponsors, ensuring a comprehensive exploration of research in multimedia.
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