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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: | |
| - [12,16, 19,36, 40,28] # P3/8 | |
| - [36,75, 76,55, 72,146] # P4/16 | |
| - [142,110, 192,243, 459,401] # P5/32 | |
| # CSP-ResNeXt backbone | |
| backbone: | |
| # [from, number, module, args] | |
| [[-1, 1, Stem, [128]], # 0-P1/2 | |
| [-1, 3, ResXCSPC, [128]], | |
| [-1, 1, Conv, [256, 3, 2]], # 2-P3/8 | |
| [-1, 4, ResXCSPC, [256]], | |
| [-1, 1, Conv, [512, 3, 2]], # 4-P3/8 | |
| [-1, 6, ResXCSPC, [512]], | |
| [-1, 1, Conv, [1024, 3, 2]], # 6-P3/8 | |
| [-1, 3, ResXCSPC, [1024]], # 7 | |
| ] | |
| # CSP-ResX-PAN head | |
| head: | |
| [[-1, 1, SPPCSPC, [512]], # 8 | |
| [-1, 1, Conv, [256, 1, 1]], | |
| [-1, 1, nn.Upsample, [None, 2, 'nearest']], | |
| [5, 1, Conv, [256, 1, 1]], # route backbone P4 | |
| [[-1, -2], 1, Concat, [1]], | |
| [-1, 2, ResXCSPB, [256]], # 13 | |
| [-1, 1, Conv, [128, 1, 1]], | |
| [-1, 1, nn.Upsample, [None, 2, 'nearest']], | |
| [3, 1, Conv, [128, 1, 1]], # route backbone P3 | |
| [[-1, -2], 1, Concat, [1]], | |
| [-1, 2, ResXCSPB, [128]], # 18 | |
| [-1, 1, Conv, [256, 3, 1]], | |
| [-2, 1, Conv, [256, 3, 2]], | |
| [[-1, 13], 1, Concat, [1]], # cat | |
| [-1, 2, ResXCSPB, [256]], # 22 | |
| [-1, 1, Conv, [512, 3, 1]], | |
| [-2, 1, Conv, [512, 3, 2]], | |
| [[-1, 8], 1, Concat, [1]], # cat | |
| [-1, 2, ResXCSPB, [512]], # 26 | |
| [-1, 1, Conv, [1024, 3, 1]], | |
| [[19,23,27], 1, IDetect, [nc, anchors]], # Detect(P3, P4, P5) | |
| ] | |