Replacing YOLO 11 backbone with ResNet 50

Naufal_dzakwan · June 17, 2025, 4:58pm

Hi, I am interested and curious about replacing the YOLO v11 backbone with ResNet 50. Is there anyone who can show me how to do it?

Toxite · June 18, 2025, 10:49am

There’s a YAML for YOLO11 with ResNet101:

github.com/Y-T-G/community

cfg/detect/resnet101.yaml

main

# Metadata
author: Y-T-G
task: detect
keywords: [cnn, resnet]
description: ResNet-101 pretrained backbone with detect head.
flops: 236.8
parameters: 70698259
min_version: 8.3.59
discussion: https://github.com/Y-T-G/community/discussions/17

# Model
nc: 1
strides: [8, 16, 32]
backbone:
  # [from, repeats, module, args]
  - [-1, 1, TorchVision, [768, resnet101, DEFAULT, True, 2, True]]
  - [0, 1, Index, [512, 6]]     # (1, 512, 80, 80)  - 1
  - [0, 1, Index, [1024, 7]]    # (1, 1024, 40, 40) - 2
  - [0, 1, Index, [2048, 8]]    # (1, 2048, 20, 20) - 3

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You need to do something similar.

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Replacing YOLO 11 backbone with ResNet 50

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