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| # Ultralytics YOLO 🚀, AGPL-3.0 license | |
| # YOLOv8 object detection model with P3-P6 outputs. For Usage examples see https://docs.ultralytics.com/tasks/detect | |
| # Parameters | |
| nc: 80 # number of classes | |
| scales: # model compound scaling constants, i.e. 'model=yolov8n-p6.yaml' will call yolov8-p6.yaml with scale 'n' | |
| # [depth, width, max_channels] | |
| n: [0.33, 0.25, 1024] # YOLOv8n-ghost-p6 summary: 529 layers, 2901100 parameters, 2901084 gradients, 5.8 GFLOPs | |
| s: [0.33, 0.50, 1024] # YOLOv8s-ghost-p6 summary: 529 layers, 9520008 parameters, 9519992 gradients, 16.4 GFLOPs | |
| m: [0.67, 0.75, 768] # YOLOv8m-ghost-p6 summary: 789 layers, 18002904 parameters, 18002888 gradients, 34.4 GFLOPs | |
| l: [1.00, 1.00, 512] # YOLOv8l-ghost-p6 summary: 1049 layers, 21227584 parameters, 21227568 gradients, 55.3 GFLOPs | |
| x: [1.00, 1.25, 512] # YOLOv8x-ghost-p6 summary: 1049 layers, 33057852 parameters, 33057836 gradients, 85.7 GFLOPs | |
| # YOLOv8.0-ghost backbone | |
| backbone: | |
| # [from, repeats, module, args] | |
| - [-1, 1, Conv, [64, 3, 2]] # 0-P1/2 | |
| - [-1, 1, GhostConv, [128, 3, 2]] # 1-P2/4 | |
| - [-1, 3, C3Ghost, [128, True]] | |
| - [-1, 1, GhostConv, [256, 3, 2]] # 3-P3/8 | |
| - [-1, 6, C3Ghost, [256, True]] | |
| - [-1, 1, GhostConv, [512, 3, 2]] # 5-P4/16 | |
| - [-1, 6, C3Ghost, [512, True]] | |
| - [-1, 1, GhostConv, [768, 3, 2]] # 7-P5/32 | |
| - [-1, 3, C3Ghost, [768, True]] | |
| - [-1, 1, GhostConv, [1024, 3, 2]] # 9-P6/64 | |
| - [-1, 3, C3Ghost, [1024, True]] | |
| - [-1, 1, SPPF, [1024, 5]] # 11 | |
| # YOLOv8.0-ghost-p6 head | |
| head: | |
| - [-1, 1, nn.Upsample, [None, 2, "nearest"]] | |
| - [[-1, 8], 1, Concat, [1]] # cat backbone P5 | |
| - [-1, 3, C3Ghost, [768]] # 14 | |
| - [-1, 1, nn.Upsample, [None, 2, "nearest"]] | |
| - [[-1, 6], 1, Concat, [1]] # cat backbone P4 | |
| - [-1, 3, C3Ghost, [512]] # 17 | |
| - [-1, 1, nn.Upsample, [None, 2, "nearest"]] | |
| - [[-1, 4], 1, Concat, [1]] # cat backbone P3 | |
| - [-1, 3, C3Ghost, [256]] # 20 (P3/8-small) | |
| - [-1, 1, GhostConv, [256, 3, 2]] | |
| - [[-1, 17], 1, Concat, [1]] # cat head P4 | |
| - [-1, 3, C3Ghost, [512]] # 23 (P4/16-medium) | |
| - [-1, 1, GhostConv, [512, 3, 2]] | |
| - [[-1, 14], 1, Concat, [1]] # cat head P5 | |
| - [-1, 3, C3Ghost, [768]] # 26 (P5/32-large) | |
| - [-1, 1, GhostConv, [768, 3, 2]] | |
| - [[-1, 11], 1, Concat, [1]] # cat head P6 | |
| - [-1, 3, C3Ghost, [1024]] # 29 (P6/64-xlarge) | |
| - [[20, 23, 26, 29], 1, Detect, [nc]] # Detect(P3, P4, P5, P6) | |