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# YOLOv5 π by Ultralytics, GPL-3.0 license | |
# Parameters | |
nc: 80 # number of classes | |
depth_multiple: 0.67 # model depth multiple | |
width_multiple: 0.75 # layer channel multiple | |
anchors: | |
- [19,27, 44,40, 38,94] # P3/8 | |
- [96,68, 86,152, 180,137] # P4/16 | |
- [140,301, 303,264, 238,542] # P5/32 | |
- [436,615, 739,380, 925,792] # P6/64 | |
# 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, [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, SPPF, [1024, 5]], # 11 | |
] | |
# YOLOv5 v6.0 head | |
head: | |
[[-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]], # 15 | |
[-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]], # 19 | |
[-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]], # 23 (P3/8-small) | |
[-1, 1, Conv, [256, 3, 2]], | |
[[-1, 20], 1, Concat, [1]], # cat head P4 | |
[-1, 3, C3, [512, False]], # 26 (P4/16-medium) | |
[-1, 1, Conv, [512, 3, 2]], | |
[[-1, 16], 1, Concat, [1]], # cat head P5 | |
[-1, 3, C3, [768, False]], # 29 (P5/32-large) | |
[-1, 1, Conv, [768, 3, 2]], | |
[[-1, 12], 1, Concat, [1]], # cat head P6 | |
[-1, 3, C3, [1024, False]], # 32 (P6/64-xlarge) | |
[[23, 26, 29, 32], 1, Detect, [nc, anchors]], # Detect(P3, P4, P5, P6) | |
] | |