Traffic sign detection and recognition is a key technology for intelligent assisted driving. This paper proposes a key technology for traffic sign detection and recognition based on improved YOLO_V4 in complex urban scenes. The technology uses K-means++ clustering to generate an anchor that conforms to traffic signs; designs a CSPDarknet33 backbone network that greatly reduces the number of weight calculations optimizing the structure of the YOLO_V4 neural network; uses Focal Loss and balanced cross entropy function to optimize the loss function of YOLO_V4, and completes the traffic sign detection work. Then this paper designs an improved VGG16 neural network, which is used to train three models that recognize warning signs, prohibition signs and indication signs. Finally, according to the results of traffic sign detection, the traffic sign recognition work is further completed, the mAP is 94.48% and the FPS is 27, its detection performance is significantly higher than other networks.
Multi-scale traffic sign detection algorithm based on improved YOLO_V4
08.10.2022
2550224 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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