Restricted by the performance and resources of embedded platform,the vehicle detection algorithm based on deep learning is faced with problems such as large number of network parameters,complex model and difficult migration during deployment.In this paper,an improved target detection algorithm of YOLOv3 based on MobileNetv3 network is proposed.The light-weight MobileNetv3 network is used to replace the traditional backbone feature extraction network Darknet53,the FPN feature pyramid is modified to FPN+PAN structure,and the attention mechanism is introduced to improve the detection accuracy of the algorithm.The experimental results on computer platform and RV1126 embedded platform show that the improved YOLOv3 algorithm reduces the model size by 50%,improves the detection accuracy by 0.85%,and improves the inference time by 50%.
Key words
MobileNetv3 /
YOLOv3 /
real-time vehicle detection /
attention mechanism
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