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- # YOLOv5 🚀 by Ultralytics, GPL-3.0 license
- # Parameters
- nc: 80 # number of classes
- depth_multiple: 0.67 # save_models depth multiple
- width_multiple: 0.75 # layer channel multiple
- anchors:
- - [10,13, 16,30, 33,23] # P3/8
- - [30,61, 62,45, 59,119] # P4/16
- - [116,90, 156,198, 373,326] # P5/32
- # YOLOv5 v6.0 backbone
- backbone:
- # [from, number, module, args]
- [[-1, 1, Conv, [64, 6, 2, 2]], # 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, 6, C3, [256]],
- [-1, 1, Conv, [512, 3, 2]], # 5-P4/16
- [-1, 9, C3, [512]],
- [-1, 1, Conv, [1024, 3, 2]], # 7-P5/32
- [-1, 3, C3, [1024]],
- [-1, 1, SPPF, [1024, 5]], # 9
- ]
- # YOLOv5 v6.0 head
- head:
- [[-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]], # 13
- [-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]], # 17 (P3/8-small)
- [-1, 1, Conv, [256, 3, 2]],
- [[-1, 14], 1, Concat, [1]], # cat head P4
- [-1, 3, C3, [512, False]], # 20 (P4/16-medium)
- [-1, 1, Conv, [512, 3, 2]],
- [[-1, 10], 1, Concat, [1]], # cat head P5
- [-1, 3, C3, [1024, False]], # 23 (P5/32-large)
- [[17, 20, 23], 1, Detect, [nc, anchors]], # Detect(P3, P4, P5)
- ]
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