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- # YOLOv5 🚀 by Ultralytics, GPL-3.0 license
-
- # Parameters
- nc: 80 # number of classes
- depth_multiple: 1.0 # model depth multiple
- width_multiple: 1.0 # layer channel multiple
- anchors: 3
-
- # YOLOv5 backbone
- backbone:
- # [from, number, module, args]
- [[-1, 1, Focus, [64, 3]], # 0-P1/2
- [-1, 1, Conv, [128, 3, 2]], # 1-P2/4
- [-1, 3, C3, [128]],
- [-1, 1, Conv, [256, 3, 2]], # 3-P3/8
- [-1, 9, C3, [256]],
- [-1, 1, Conv, [512, 3, 2]], # 5-P4/16
- [-1, 9, C3, [512]],
- [-1, 1, Conv, [768, 3, 2]], # 7-P5/32
- [-1, 3, C3, [768]],
- [-1, 1, Conv, [1024, 3, 2]], # 9-P6/64
- [-1, 3, C3, [1024]],
- [-1, 1, Conv, [1280, 3, 2]], # 11-P7/128
- [-1, 1, SPP, [1280, [3, 5]]],
- [-1, 3, C3, [1280, False]], # 13
- ]
-
- # YOLOv5 head
- head:
- [[-1, 1, Conv, [1024, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [[-1, 10], 1, Concat, [1]], # cat backbone P6
- [-1, 3, C3, [1024, False]], # 17
-
- [-1, 1, Conv, [768, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [[-1, 8], 1, Concat, [1]], # cat backbone P5
- [-1, 3, C3, [768, False]], # 21
-
- [-1, 1, Conv, [512, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [[-1, 6], 1, Concat, [1]], # cat backbone P4
- [-1, 3, C3, [512, False]], # 25
-
- [-1, 1, Conv, [256, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [[-1, 4], 1, Concat, [1]], # cat backbone P3
- [-1, 3, C3, [256, False]], # 29 (P3/8-small)
-
- [-1, 1, Conv, [256, 3, 2]],
- [[-1, 26], 1, Concat, [1]], # cat head P4
- [-1, 3, C3, [512, False]], # 32 (P4/16-medium)
-
- [-1, 1, Conv, [512, 3, 2]],
- [[-1, 22], 1, Concat, [1]], # cat head P5
- [-1, 3, C3, [768, False]], # 35 (P5/32-large)
-
- [-1, 1, Conv, [768, 3, 2]],
- [[-1, 18], 1, Concat, [1]], # cat head P6
- [-1, 3, C3, [1024, False]], # 38 (P6/64-xlarge)
-
- [-1, 1, Conv, [1024, 3, 2]],
- [[-1, 14], 1, Concat, [1]], # cat head P7
- [-1, 3, C3, [1280, False]], # 41 (P7/128-xxlarge)
-
- [[29, 32, 35, 38, 41], 1, Detect, [nc, anchors]], # Detect(P3, P4, P5, P6, P7)
- ]
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