Automatic Recognition of Traffic Signs Based on Visual Inspection

The automatic recognition of traffic signs is essential to autonomous driving, assisted driving, and driving safety. Currently, convolutional neural network (CNN) is the most popular deep learning algorithm in traffic sign recognition. However, the CNN cannot capture the poses, perspectives, and dir...

Full description

Bibliographic Details
Main Authors: Shouhui He, Lei Chen, Shaoyun Zhang, Zhuangxian Guo, Pengjie Sun, Hong Liu, Hongda Liu
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9353477/
_version_ 1828908265281421312
author Shouhui He
Lei Chen
Shaoyun Zhang
Zhuangxian Guo
Pengjie Sun
Hong Liu
Hongda Liu
author_facet Shouhui He
Lei Chen
Shaoyun Zhang
Zhuangxian Guo
Pengjie Sun
Hong Liu
Hongda Liu
author_sort Shouhui He
collection DOAJ
description The automatic recognition of traffic signs is essential to autonomous driving, assisted driving, and driving safety. Currently, convolutional neural network (CNN) is the most popular deep learning algorithm in traffic sign recognition. However, the CNN cannot capture the poses, perspectives, and directions of the image, nor accurately recognize traffic signs from different perspectives. To solve the problem, the authors presented an automatic recognition algorithm for traffic signs based on visual inspection. For the accuracy of visual inspection, a region of interest (ROI) extraction method was designed through content analysis and key information recognition. Besides, a Histogram of Oriented Gradients (HOG) method was developed for image detection to prevent projection distortion. Furthermore, a traffic sign recognition learning architecture was created based on CapsNet, which relies on neurons to represent target parameters like dynamic routing, path pose and direction, and effectively capture the traffic sign information from different angles or directions. Finally, our model was compared with several baseline methods through experiments on LISA (Laboratory for Intelligent and Safe Automobiles) traffic sign dataset. The model performance was measured by mean average precision (MAP), time, memory, floating point operations per second (FLOPS), and parameter number. The results show that our model consumed shorter time yet better recognition performance than baseline methods, including CNN, support vector machine (SVM), and region-based fully convolutional network (R-FCN) ResNet 101.
first_indexed 2024-12-13T18:07:25Z
format Article
id doaj.art-37134150a1834f57817371a5d7483e34
institution Directory Open Access Journal
issn 2169-3536
language English
last_indexed 2024-12-13T18:07:25Z
publishDate 2021-01-01
publisher IEEE
record_format Article
series IEEE Access
spelling doaj.art-37134150a1834f57817371a5d7483e342022-12-21T23:36:02ZengIEEEIEEE Access2169-35362021-01-019432534326110.1109/ACCESS.2021.30590529353477Automatic Recognition of Traffic Signs Based on Visual InspectionShouhui He0https://orcid.org/0000-0003-4284-7915Lei Chen1https://orcid.org/0000-0002-3954-3470Shaoyun Zhang2https://orcid.org/0000-0001-6515-1932Zhuangxian Guo3https://orcid.org/0000-0002-0810-2429Pengjie Sun4https://orcid.org/0000-0002-7120-7469Hong Liu5https://orcid.org/0000-0002-5655-4024Hongda Liu6https://orcid.org/0000-0001-6529-2831Linyi University, Linyi, ChinaLinyi University, Linyi, ChinaLinyi University, Linyi, ChinaLinyi University, Linyi, ChinaLinyi University, Linyi, ChinaLinyi University, Linyi, ChinaLinyi Audit Bureau, Linyi, ChinaThe automatic recognition of traffic signs is essential to autonomous driving, assisted driving, and driving safety. Currently, convolutional neural network (CNN) is the most popular deep learning algorithm in traffic sign recognition. However, the CNN cannot capture the poses, perspectives, and directions of the image, nor accurately recognize traffic signs from different perspectives. To solve the problem, the authors presented an automatic recognition algorithm for traffic signs based on visual inspection. For the accuracy of visual inspection, a region of interest (ROI) extraction method was designed through content analysis and key information recognition. Besides, a Histogram of Oriented Gradients (HOG) method was developed for image detection to prevent projection distortion. Furthermore, a traffic sign recognition learning architecture was created based on CapsNet, which relies on neurons to represent target parameters like dynamic routing, path pose and direction, and effectively capture the traffic sign information from different angles or directions. Finally, our model was compared with several baseline methods through experiments on LISA (Laboratory for Intelligent and Safe Automobiles) traffic sign dataset. The model performance was measured by mean average precision (MAP), time, memory, floating point operations per second (FLOPS), and parameter number. The results show that our model consumed shorter time yet better recognition performance than baseline methods, including CNN, support vector machine (SVM), and region-based fully convolutional network (R-FCN) ResNet 101.https://ieeexplore.ieee.org/document/9353477/Traffic signsautomatic recognition systemCapsNettraffic safety
spellingShingle Shouhui He
Lei Chen
Shaoyun Zhang
Zhuangxian Guo
Pengjie Sun
Hong Liu
Hongda Liu
Automatic Recognition of Traffic Signs Based on Visual Inspection
IEEE Access
Traffic signs
automatic recognition system
CapsNet
traffic safety
title Automatic Recognition of Traffic Signs Based on Visual Inspection
title_full Automatic Recognition of Traffic Signs Based on Visual Inspection
title_fullStr Automatic Recognition of Traffic Signs Based on Visual Inspection
title_full_unstemmed Automatic Recognition of Traffic Signs Based on Visual Inspection
title_short Automatic Recognition of Traffic Signs Based on Visual Inspection
title_sort automatic recognition of traffic signs based on visual inspection
topic Traffic signs
automatic recognition system
CapsNet
traffic safety
url https://ieeexplore.ieee.org/document/9353477/
work_keys_str_mv AT shouhuihe automaticrecognitionoftrafficsignsbasedonvisualinspection
AT leichen automaticrecognitionoftrafficsignsbasedonvisualinspection
AT shaoyunzhang automaticrecognitionoftrafficsignsbasedonvisualinspection
AT zhuangxianguo automaticrecognitionoftrafficsignsbasedonvisualinspection
AT pengjiesun automaticrecognitionoftrafficsignsbasedonvisualinspection
AT hongliu automaticrecognitionoftrafficsignsbasedonvisualinspection
AT hongdaliu automaticrecognitionoftrafficsignsbasedonvisualinspection