Saiqiang ZHANG, Shaofeng SI, Bin LU, Qing LI, Benyao CHEN, Anxin RONG. A Person Detection Algorithm in Fisheye Images Based on Rotated Boxes[J]. Acta Photonica Sinica, 2021, 50(10): 1010003
- Acta Photonica Sinica
- Vol. 50, Issue 10, 1010003 (2021)
Fig. 1. Anchor-free person detection network under fisheye images
Fig. 2. Different strategies used as bounding box regression samples
Fig. 3. Projection method for calculating rotated Gaussian kernel
Fig. 4. Comparison between fixed Gaussian kernel and adaptive Gaussian kernel
Fig. 5. Transformation from network regression outputs to predicted bounding boxes
Fig. 6. Minimum axis-aligned rectangle of two rotated bounding boxes
Fig. 7. Relationship between IoU and angle difference under different aspect ratios
Fig. 8. Comparison of qualitative results
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Table 1. Comparative experiment of Gaussian kernel function
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Table 2. Comparative experiment of IoU loss
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Table 3. Ablation experiment of hyperparameter
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Table 4. Comparative experiment of Gaussian kernel function
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Table 5. Comparison of the state-of-the-art algorithm and proposed algorithm
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