College of Information Science and Technology, Donghua University, Shanghai 201620, China.
Institute of Business Administration, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh.
Sensors (Basel). 2021 Nov 13;21(22):7545. doi: 10.3390/s21227545.
Vehicle type classification plays an essential role in developing an intelligent transportation system (ITS). Based on the modern accomplishments of deep learning (DL) on image classification, we proposed a model based on transfer learning, incorporating data augmentation, for the recognition and classification of Bangladeshi native vehicle types. An extensive dataset of Bangladeshi native vehicles, encompassing 10,440 images, was developed. Here, the images are categorized into 13 common vehicle classes in Bangladesh. The method utilized was a residual network (ResNet-50)-based model, with extra classification blocks added to improve performance. Here, vehicle type features were automatically extracted and categorized. While conducting the analysis, a variety of metrics was used for the evaluation, including accuracy, precision, recall, and F1 - Score. In spite of the changing physical properties of the vehicles, the proposed model achieved progressive accuracy. Our proposed method surpasses the existing baseline method as well as two pre-trained DL approaches, AlexNet and VGG-16. Based on result comparisons, we have seen that, in the classification of Bangladeshi native vehicle types, our suggested ResNet-50 pre-trained model achieves an accuracy of 98.00%.
车辆类型分类在开发智能交通系统(ITS)中起着至关重要的作用。基于深度学习(DL)在图像分类方面的现代成就,我们提出了一种基于迁移学习的模型,结合数据增强,用于识别和分类孟加拉国产车辆类型。我们开发了一个包含 10440 张图像的广泛的孟加拉国产车辆数据集。在这里,图像被分为孟加拉国的 13 个常见车辆类别。所使用的方法是基于残差网络(ResNet-50)的模型,增加了额外的分类块来提高性能。在这里,车辆类型特征被自动提取和分类。在进行分析时,使用了多种指标进行评估,包括准确性、精度、召回率和 F1 分数。尽管车辆的物理性质发生了变化,但所提出的模型仍取得了渐进式的准确性。我们提出的方法超越了现有的基线方法以及两种预先训练的 DL 方法,AlexNet 和 VGG-16。根据结果比较,我们发现,在孟加拉国产车辆类型的分类中,我们建议的 ResNet-50 预训练模型的准确率达到 98.00%。