International Conference on Computer and Knowledge Engineering

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Traffic Sign Recognition Using Local Vision Transformer

Authors :

Ali Farzipour¹ Omid Nejati Manzari² Shahriar B. Shokouhi³

1- School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran 2- School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran 3- School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran

Keywords :

vision transformer،Deep Learning،Traffic Sign Recognition،self-driving vehicles

Abstract :

Abstract—Recognition of traffic signs is a crucial aspect of self- driving cars and driver assistance systems, and machine vision tasks such as traffic sign recognition have gained significant attention. CNNs have been frequently used in machine vision, but introducing vision transformers has provided an alternative approach to global feature learning. This paper proposes a new novel model that blends the advantages of both convolutional and transformer-based networks for traffic sign recognition. The proposed model includes convolutional blocks for capturing local correlations and transformer-based blocks for learning global dependencies. Additionally, a locality module is incorporated to enhance local perception. The performance of the suggested model is evaluated on the Persian Traffic Sign Dataset and German Traffic Sign Recognition Benchmark and compared with SOTA convolutional and transformer-based models. The experimental evaluations demonstrate that the hybrid network with the locality module outperforms pure transformer-based models and some of the best convolutional networks in accuracy. Specifically, our proposed final model reached 99.66% accuracy in the German traffic sign recognition benchmark and 99.8% in the Persian traffic sign dataset, higher than the best convolutional models. Moreover, it outperforms existing CNNs and ViTs while maintaining fast inference speed. Consequently, the proposed model proves to be significantly faster and more suitable for real-world applications.

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