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- # parameters
- nc: 80 # number of classes
- depth_multiple: 1.0 # model depth multiple
- width_multiple: 1.0 # layer channel multiple
- # anchors
- 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
- # YOLOv7-tiny backbone
- backbone:
- # [from, number, module, args]
- [[-1, 1, Conv, [32, 3, 2]], # 0-P1/2
-
- [-1, 1, Conv, [64, 3, 2]], # 1-P2/4
-
- [-1, 1, Conv, [32, 1, 1]],
- [-2, 1, Conv, [32, 1, 1]],
- [-1, 1, Conv, [32, 3, 1]],
- [-1, 1, Conv, [32, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [64, 1, 1]], # 7
-
- [-1, 1, MP, []], # 8-P3/8
- [-1, 1, Conv, [64, 1, 1]],
- [-2, 1, Conv, [64, 1, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [128, 1, 1]], # 14
-
- [-1, 1, MP, []], # 15-P4/16
- [-1, 1, Conv, [128, 1, 1]],
- [-2, 1, Conv, [128, 1, 1]],
- [-1, 1, Conv, [128, 3, 1]],
- [-1, 1, Conv, [128, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [256, 1, 1]], # 21
-
- [-1, 1, MP, []], # 22-P5/32
- [-1, 1, Conv, [256, 1, 1]],
- [-2, 1, Conv, [256, 1, 1]],
- [-1, 1, Conv, [256, 3, 1]],
- [-1, 1, Conv, [256, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [512, 1, 1]], # 28
- ]
- # YOLOv7-tiny head
- head:
- [[-1, 1, Conv, [256, 1, 1]],
- [-2, 1, Conv, [256, 1, 1]],
- [-1, 1, SP, [5]],
- [-2, 1, SP, [9]],
- [-3, 1, SP, [13]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [256, 1, 1]],
- [[-1, -7], 1, Concat, [1]],
- [-1, 1, Conv, [256, 1, 1]], # 37
-
- [-1, 1, Conv, [128, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [21, 1, Conv, [128, 1, 1]], # route backbone P4
- [[-1, -2], 1, Concat, [1]],
-
- [-1, 1, Conv, [64, 1, 1]],
- [-2, 1, Conv, [64, 1, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [128, 1, 1]], # 47
-
- [-1, 1, Conv, [64, 1, 1]],
- [-1, 1, nn.Upsample, [None, 2, 'nearest']],
- [14, 1, Conv, [64, 1, 1]], # route backbone P3
- [[-1, -2], 1, Concat, [1]],
-
- [-1, 1, Conv, [32, 1, 1]],
- [-2, 1, Conv, [32, 1, 1]],
- [-1, 1, Conv, [32, 3, 1]],
- [-1, 1, Conv, [32, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [64, 1, 1]], # 57
-
- [-1, 1, Conv, [128, 3, 2]],
- [[-1, 47], 1, Concat, [1]],
-
- [-1, 1, Conv, [64, 1, 1]],
- [-2, 1, Conv, [64, 1, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [-1, 1, Conv, [64, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [128, 1, 1]], # 65
-
- [-1, 1, Conv, [256, 3, 2]],
- [[-1, 37], 1, Concat, [1]],
-
- [-1, 1, Conv, [128, 1, 1]],
- [-2, 1, Conv, [128, 1, 1]],
- [-1, 1, Conv, [128, 3, 1]],
- [-1, 1, Conv, [128, 3, 1]],
- [[-1, -2, -3, -4], 1, Concat, [1]],
- [-1, 1, Conv, [256, 1, 1]], # 73
-
- [57, 1, Conv, [128, 3, 1]],
- [65, 1, Conv, [256, 3, 1]],
- [73, 1, Conv, [512, 3, 1]],
- [[74,75,76], 1, Detect, [nc, anchors]], # Detect(P3, P4, P5)
- ]
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