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| # Ultralytics 🚀 AGPL-3.0 License - https://ultralytics.com/license | |
| # YOLOv9c object detection model with P3/8 - P5/32 outputs | |
| # Model docs: https://docs.ultralytics.com/models/yolov9 | |
| # Task docs: https://docs.ultralytics.com/tasks/detect | |
| # 618 layers, 25590912 parameters, 104.0 GFLOPs | |
| # Parameters | |
| nc: 80 # number of classes | |
| # GELAN backbone | |
| backbone: | |
| - [-1, 1, Conv, [64, 3, 2]] # 0-P1/2 | |
| - [-1, 1, Conv, [128, 3, 2]] # 1-P2/4 | |
| - [-1, 1, RepNCSPELAN4, [256, 128, 64, 1]] # 2 | |
| - [-1, 1, ADown, [256]] # 3-P3/8 | |
| - [-1, 1, RepNCSPELAN4, [512, 256, 128, 1]] # 4 | |
| - [-1, 1, ADown, [512]] # 5-P4/16 | |
| - [-1, 1, RepNCSPELAN4, [512, 512, 256, 1]] # 6 | |
| - [-1, 1, ADown, [512]] # 7-P5/32 | |
| - [-1, 1, RepNCSPELAN4, [512, 512, 256, 1]] # 8 | |
| - [-1, 1, SPPELAN, [512, 256]] # 9 | |
| head: | |
| - [-1, 1, nn.Upsample, [None, 2, "nearest"]] | |
| - [[-1, 6], 1, Concat, [1]] # cat backbone P4 | |
| - [-1, 1, RepNCSPELAN4, [512, 512, 256, 1]] # 12 | |
| - [-1, 1, nn.Upsample, [None, 2, "nearest"]] | |
| - [[-1, 4], 1, Concat, [1]] # cat backbone P3 | |
| - [-1, 1, RepNCSPELAN4, [256, 256, 128, 1]] # 15 (P3/8-small) | |
| - [-1, 1, ADown, [256]] | |
| - [[-1, 12], 1, Concat, [1]] # cat head P4 | |
| - [-1, 1, RepNCSPELAN4, [512, 512, 256, 1]] # 18 (P4/16-medium) | |
| - [-1, 1, ADown, [512]] | |
| - [[-1, 9], 1, Concat, [1]] # cat head P5 | |
| - [-1, 1, RepNCSPELAN4, [512, 512, 256, 1]] # 21 (P5/32-large) | |
| - [[15, 18, 21], 1, Detect, [nc]] # Detect(P3, P4, P5) | |