Yi Zhang, Zhiyuan Gong, Wenwen Wei. Traffic Sign Detection Based on Improved Faster R-CNN Model[J]. Laser & Optoelectronics Progress, 2020, 57(18): 181015
- Laser & Optoelectronics Progress
- Vol. 57, Issue 18, 181015 (2020)
Fig. 1. Framework of Faster R-CNN
Fig. 2. Block of ResNeXt
Fig. 3. Block of improved basic network
Fig. 4. Basic network structure of multi-dimensional feature fusion
Fig. 5. RPN structure
Fig. 6. Specific parameters of anchor frame type
Fig. 7. Samples of TT100K data set. (a) image 1; (b) image 2; (c) image 3; (d) image 4
Fig. 8. Training set attributes. (a) Number of samples in training set; (b) images corresponding to some traffic sign numbers
Fig. 9. Loss function curves
Fig. 10. P-R curves. (a) Improved basic network; (b) improved basic network+multi-scale feature fusion; (c) improved basic network+multi-scale feature fusion+improved anchor generation
Fig. 11. Example of detection effect of proposed algorithm. (a) Complex background detection; (b) detection of small targets
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Table 1. Basic network parameters
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Table 2. Hardware configuration parameters
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Table 3. Performance comparison of detection algorithms
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