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| # parameters | |
| nc: 80 # number of classes | |
| depth_multiple: 1.0 # expand model depth | |
| width_multiple: 1.25 # expand layer channels | |
| # anchors | |
| 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 | |
| # CSP-Darknet backbone | |
| backbone: | |
| # [from, number, module, args] | |
| [[-1, 1, ReOrg, []], # 0 | |
| [-1, 1, Conv, [64, 3, 1]], # 1-P1/2 | |
| [-1, 1, DownC, [128]], # 2-P2/4 | |
| [-1, 3, BottleneckCSPA, [128]], | |
| [-1, 1, DownC, [256]], # 4-P3/8 | |
| [-1, 15, BottleneckCSPA, [256]], | |
| [-1, 1, DownC, [512]], # 6-P4/16 | |
| [-1, 15, BottleneckCSPA, [512]], | |
| [-1, 1, DownC, [768]], # 8-P5/32 | |
| [-1, 7, BottleneckCSPA, [768]], | |
| [-1, 1, DownC, [1024]], # 10-P6/64 | |
| [-1, 7, BottleneckCSPA, [1024]], # 11 | |
| ] | |
| # CSP-Dark-PAN head | |
| head: | |
| [[-1, 1, SPPCSPC, [512]], # 12 | |
| [-1, 1, Conv, [384, 1, 1]], | |
| [-1, 1, nn.Upsample, [None, 2, 'nearest']], | |
| [-6, 1, Conv, [384, 1, 1]], # route backbone P5 | |
| [[-1, -2], 1, Concat, [1]], | |
| [-1, 3, BottleneckCSPB, [384]], # 17 | |
| [-1, 1, Conv, [256, 1, 1]], | |
| [-1, 1, nn.Upsample, [None, 2, 'nearest']], | |
| [-13, 1, Conv, [256, 1, 1]], # route backbone P4 | |
| [[-1, -2], 1, Concat, [1]], | |
| [-1, 3, BottleneckCSPB, [256]], # 22 | |
| [-1, 1, Conv, [128, 1, 1]], | |
| [-1, 1, nn.Upsample, [None, 2, 'nearest']], | |
| [-20, 1, Conv, [128, 1, 1]], # route backbone P3 | |
| [[-1, -2], 1, Concat, [1]], | |
| [-1, 3, BottleneckCSPB, [128]], # 27 | |
| [-1, 1, Conv, [256, 3, 1]], | |
| [-2, 1, DownC, [256]], | |
| [[-1, 22], 1, Concat, [1]], # cat | |
| [-1, 3, BottleneckCSPB, [256]], # 31 | |
| [-1, 1, Conv, [512, 3, 1]], | |
| [-2, 1, DownC, [384]], | |
| [[-1, 17], 1, Concat, [1]], # cat | |
| [-1, 3, BottleneckCSPB, [384]], # 35 | |
| [-1, 1, Conv, [768, 3, 1]], | |
| [-2, 1, DownC, [512]], | |
| [[-1, 12], 1, Concat, [1]], # cat | |
| [-1, 3, BottleneckCSPB, [512]], # 39 | |
| [-1, 1, Conv, [1024, 3, 1]], | |
| [[28,32,36,40], 1, IDetect, [nc, anchors]], # Detect(P3, P4, P5, P6) | |
| ] |