Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification

Fine-grained vehicle type recognition is one of the main challenges in machine vision. Almost all of the ways presented so far have identified the type of vehicle with the help of feature extraction and classifiers. Because of the apparent similarity between car classes, these methods may produce er...

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Main Authors: R. Asgarian Dehkordi, H. Khosravi
Format: Article
Language:English
Published: Shahrood University of Technology 2020-07-01
Series:Journal of Artificial Intelligence and Data Mining
Subjects:
Online Access:http://jad.shahroodut.ac.ir/article_1722_9749fae8e64658949e4fc6907940b5f7.pdf
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author R. Asgarian Dehkordi
H. Khosravi
author_facet R. Asgarian Dehkordi
H. Khosravi
author_sort R. Asgarian Dehkordi
collection DOAJ
description Fine-grained vehicle type recognition is one of the main challenges in machine vision. Almost all of the ways presented so far have identified the type of vehicle with the help of feature extraction and classifiers. Because of the apparent similarity between car classes, these methods may produce erroneous results. This paper presents a methodology that uses two criteria to identify common vehicle types. The first criterion is feature extraction and classification and the second criterion is to use the dimensions of car for classification. This method consists of three phases. In the first phase, the coordinates of the vanishing points are obtained. In the second phase, the bounding box and dimensions are calculated for each passing vehicle. Finally, in the third phase, the exact vehicle type is determined by combining the results of the first and second criteria. To evaluate the proposed method, a dataset of images and videos, prepared by the authors, has been used. This dataset is recorded from places similar to those of a roadside camera. Most existing methods use high-quality images for evaluation and are not applicable in the real world, but in the proposed method real-world video frames are used to determine the exact type of vehicle, and the accuracy of 89.5% is achieved, which represents a good performance.
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spelling doaj.art-095b080894bf4b98b4d7ba234ff5d62e2022-12-21T17:12:36ZengShahrood University of TechnologyJournal of Artificial Intelligence and Data Mining2322-52112322-44442020-07-018342743810.22044/jadm.2020.8375.19751722Vehicle Type Recognition based on Dimension Estimation and Bag of Word ClassificationR. Asgarian Dehkordi0H. Khosravi1Faculty of Electrical Engineering and Robotics, Shahrood University of Technology, Shahrood, Iran.Faculty of Electrical Engineering and Robotics, Shahrood University of Technology, Shahrood, Iran.Fine-grained vehicle type recognition is one of the main challenges in machine vision. Almost all of the ways presented so far have identified the type of vehicle with the help of feature extraction and classifiers. Because of the apparent similarity between car classes, these methods may produce erroneous results. This paper presents a methodology that uses two criteria to identify common vehicle types. The first criterion is feature extraction and classification and the second criterion is to use the dimensions of car for classification. This method consists of three phases. In the first phase, the coordinates of the vanishing points are obtained. In the second phase, the bounding box and dimensions are calculated for each passing vehicle. Finally, in the third phase, the exact vehicle type is determined by combining the results of the first and second criteria. To evaluate the proposed method, a dataset of images and videos, prepared by the authors, has been used. This dataset is recorded from places similar to those of a roadside camera. Most existing methods use high-quality images for evaluation and are not applicable in the real world, but in the proposed method real-world video frames are used to determine the exact type of vehicle, and the accuracy of 89.5% is achieved, which represents a good performance.http://jad.shahroodut.ac.ir/article_1722_9749fae8e64658949e4fc6907940b5f7.pdfbag of wordscamera calibrationdimension estimationvehicle type recognition
spellingShingle R. Asgarian Dehkordi
H. Khosravi
Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
Journal of Artificial Intelligence and Data Mining
bag of words
camera calibration
dimension estimation
vehicle type recognition
title Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
title_full Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
title_fullStr Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
title_full_unstemmed Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
title_short Vehicle Type Recognition based on Dimension Estimation and Bag of Word Classification
title_sort vehicle type recognition based on dimension estimation and bag of word classification
topic bag of words
camera calibration
dimension estimation
vehicle type recognition
url http://jad.shahroodut.ac.ir/article_1722_9749fae8e64658949e4fc6907940b5f7.pdf
work_keys_str_mv AT rasgariandehkordi vehicletyperecognitionbasedondimensionestimationandbagofwordclassification
AT hkhosravi vehicletyperecognitionbasedondimensionestimationandbagofwordclassification