Skin Lesion Segmentation Unet
This repository contains the pretrained model checkpoints accompanying the paper:
Fuente del modelo
- Tipo
- Other
- Tamaño del archivo
- 182–547 MB
- Versión
- vRevision 6b117da
- Actualizado
- 5 oct 2026
- Descargas
- 0
- Fuente
- Hugging Face
Descripción de la fuente
Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation
This repository contains the pretrained model checkpoints accompanying the paper:
Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation: A Reproducible Baseline
The models implement a teacher–student pseudo-labeling framework for semantic segmentation of dermoscopic skin lesions using a U-Net architecture with a pretrained ResNet-34 encoder.
Overview
Pixel-wise annotation of medical images is expensive and requires expert dermatologists. This work investigates a simple yet effective semi-supervised learning strategy that leverages unlabeled dermoscopic images through teacher-generated pseudo labels.
The repository provides pretrained checkpoints for:
- Fully supervised baseline
- Teacher model (20% labeled data)
- Student model (20% labeled + pseudo labels)
- Teacher model (50% labeled data)
- Student model (50% labeled + pseudo labels)
The implementation is fully reproducible and was trained using free Kaggle Tesla T4 GPU resources.
Model Architecture
- Architecture: U-Net
- Encoder: ResNet-34 (ImageNet pretrained)
- Framework: PyTorch
- Image Size: 256 × 256
- Task: Binary semantic segmentation
- Dataset: ISIC 2018 Skin Lesion Segmentation Challenge
Available Checkpoints
| Model | Description |
|---|---|
best_full_supervised_model.pth | Fully supervised baseline trained using 100% labeled images |
teacher_20pct.pth | Teacher model trained using only 20% labeled images |
student_20pct.pth | Student model trained using 20% labeled images and pseudo labels |
teacher_50pct.pth | Teacher model trained using only 50% labeled images |
student_50pct.pth | Student model trained using 50% labeled images and pseudo labels |
Performance
Fully Supervised Baseline
| Metric | Score |
|---|---|
| Dice | 0.7769 |
| IoU | 0.6482 |
| Pixel Accuracy | 0.9130 |
Semi-Supervised Results
| Experiment | Best Validation Dice |
|---|---|
| Teacher (20%) | 0.7570 |
| Student (20%) | 0.7638 |
| Teacher (50%) | 0.7759 |
| Student (50%) | 0.7800 |
Using only 20% labeled data, the student model recovers 98.3% of the fully supervised Dice score.
Using 50% labeled data, the student slightly surpasses the fully supervised baseline.
Ablation Study
Confidence threshold analysis for pseudo-label selection:
| Threshold | Accepted Masks | Dice |
|---|---|---|
| 0.60 | 1743 | 0.7506 |
| 0.70 | 1685 | 0.7551 |
| 0.80 | 1563 | 0.7638 |
| 0.90 | 1154 | 0.7604 |
The optimal threshold was τ = 0.80, balancing pseudo-label quality and quantity.
Loading a Checkpoint
import torch
model = YourUNetModel()
checkpoint = torch.load("student_50pct.pth", map_location="cpu")
model.load_state_dict(checkpoint)
model.eval()
Intended Use
These checkpoints are intended for:
- Medical image segmentation research
- Semi-supervised learning research
- Benchmark comparisons
- Educational purposes
- Reproducibility of the accompanying paper
They are not intended for clinical diagnosis or direct patient care.
Related Resources
- 📄 Paper (Zenodo): https://doi.org/10.5281/zenodo.21320667
- 💻 GitHub Repository: https://github.com/HabibaSajid321/semi-supervised-skin-lesion-segmentation
- 🤗 Model Checkpoints: https://huggingface.co/DevHabiba/skin-lesion-segmentation-unet
- 🌐 Interactive Demo: https://huggingface.co/spaces/DevHabiba/skin-lesion-segmentation
Citation
If you use this work in your research, please cite:
@misc{sajid2026teacher,
author = {Habiba Sajid},
title = {Teacher--Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation: A Reproducible Baseline},
year = {2026},
publisher = {Zenodo},
doi = {10.5281/zenodo.21320667},
url = {https://doi.org/10.5281/zenodo.21320667}
}
---
# License
Released under the MIT License.
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Extractos de fuentes
3 extractos# Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation This repository contains the pretrained model checkpoints accompanying the paper: > **Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation: A Reproducible Baseline** The models implement a teacher–student pseudo-labeling framework for semantic segmentation of dermoscopic skin lesions using a U-Net architecture with a pretrained ResNet-34 encoder. --- # Overview Pixel-wise annotation of medical images is expensive and requires expert dermatologists. This work investigates a simple yet effective semi-supervised learning strategy that leverages unlabeled dermoscopic images through teacher-generated pseudo labels. The repository provides pretrained checkpoints for: - Fully supervised baseline - Teacher model (20% labeled data) - Student model (20% labeled + pseudo labels) - Teacher model (50% labeled data) - Student model (50% labeled + pseudo labels) The implementation is fully reproducible and was trained using free Kaggle Tesla T4 GPU resources. --- # Model Architecture - Architecture: U-Net - Encoder: ResNet-34 (ImageNet pretrained) - Framework: PyTorch - Image Size: 256 × 256 - Task: Binary semantic segmentation - Dataset: ISIC 2018 Skin Lesion Segmentation Challenge --- # Available Checkpoints | Model | Description | |--------|-------------| | `best_full_supervised_model.pth` | Fully supervised baseline trained using 100% labeled images | | `teacher_20pct.pth` | Teacher model trained using only 20% labeled images | | `student_20pct.pth` | Student model trained using 20% labeled images and pseudo labels | | `teacher_50pct.pth` | Teacher model trained using only 50% labeled images | | `student_50pct.pth` | Student model trained using 50% labeled images and pseudo labels | --- # Performance ## Fully Supervised Baseline | Metric | Score | |--------|------:| | Dice | **0.7769** | | IoU | 0.6482 | | Pixel Accuracy | 0.9130 | --- ## Semi-Supervised Results | Experiment | Best Validation Dice | |------------|--------------------:| | Teacher (20%) | 0.7570 | | Student (20%) | **0.7638** | | Teacher (50%) | 0.7759 | | Student (50%) | **0.7800** | Using only **20% labeled data**, the student model recovers **98.3%** of the fully supervised Dice score. Using **50% labeled data**, the student slightly surpasses the fully supervised baseline....
--- license: mit language: - en tags: - medical-image-segmentation - skin-lesion-segmentation - semantic-segmentation - semi-supervised-learning - pseudo-labeling - pytorch - resnet34 - unet --- dataset: - ISIC 2018 # Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation This repository contains the pretrained model checkpoints accompanying the paper: > **Teacher–Student Pseudo-Labeling for Semi-Supervised Skin Lesion Segmentation: A Reproducible Baseline** The models implement a teacher–student pseudo-labeling framework for semantic segmentation of dermoscopic skin lesions using a U-Net architecture with a pretrained ResNet-34 encoder. --- # Overview Pixel-wise annotation of medical images is expensive and requires expert dermatologists. This work investigates a simple yet effective semi-supervised learning strategy that leverages unlabeled dermoscopic images through teacher-generated pseudo labels. The repository provides pretrained checkpoints for: - Fully supervised baseline - Teacher model (20% labeled data) - Student model (20% labeled + pseudo labels) - Teacher model (50% labeled data) - Student model (50% labeled + pseudo labels) The implementation is fully reproducible and was trained using free Kaggle Tesla T4 GPU resources. --- # Model Architecture - Architecture: U-Net - Encoder: ResNet-34 (ImageNet pretrained) - Framework: PyTorch - Image Size: 256 × 256 - Task: Binary semantic segmentation - Dataset: ISIC 2018 Skin Lesion Segmentation Challenge --- # Available Checkpoints | Model | Description | |--------|-------------| | `best_full_supervised_model.pth` | Fully supervised baseline trained using 100% labeled images | | `teacher_20pct.pth` | Teacher model trained using only 20% labeled images | | `student_20pct.pth` | Student model trained using 20% labeled images and pseudo labels | | `teacher_50pct.pth` | Teacher model trained using only 50% labeled images | | `student_50pct.pth` | Student model trained using 50% labeled images and pseudo labels | --- # Performance ## Fully Supervised Baseline | Metric | Score | |--------|------:| | Dice | **0.7769** | | IoU | 0.6482 | | Pixel Accuracy | 0.9130 | --- ## Semi-Supervised Results | Experiment | Best Validation Dice | |------------|--------------------:| | Teacher (20%) | 0.7570 | | Student (20%) | **0.7638** | | Teacher (50%) | 0.7759 | | Student (5...
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