| --- |
| license: mit |
| library_name: pytorch |
| pipeline_tag: object-detection |
| tags: |
| - source-free |
| - object-detection |
| - domain-adaptation |
| - medical-imaging |
| - semi-supervised |
| - computer-vision |
| model-index: |
| - name: Grounded Teacher |
| results: [] |
| --- |
| |
| # Grounded Teacher (GT) |
|
|
| This repository contains model weights and resources for **Grounded Teacher**, a framework designed to tackle **Source Free Object Detection (SFOD)**, especially under **domain shift** and **context imbalance** conditions—common challenges in **medical imaging**. |
|
|
| --- |
|
|
| ## 🧠 Abstract |
|
|
| We focus on the Source Free Object Detection (SFOD) problem, where **source data is unavailable** during adaptation, and the model must adapt to an **unlabeled target domain**. In medical imaging, many approaches rely on semi-supervised student-teacher setups to handle domain gaps. |
|
|
| However, **context imbalance** and **domain shifts** often lead to **biased teacher models**, producing poor pseudolabels and causing the student model to collapse. |
|
|
| To address this, we introduce **Grounded Teacher (GT)**: |
| - Models **contextual relationships** via a **relational context module**. |
| - Applies targeted **augmentations** for underrepresented classes across/within domains. |
| - Adds an **expert foundational branch** to supervise the student model and enhance prediction quality. |
|
|
| GT shows significant improvement across three medical imaging datasets, with thorough ablation studies validating its effectiveness. |
|
|
| --- |
|
|
| ## 📦 Resources |
|
|
| - 🔗 **GitHub:** [Grounded Teacher on GitHub](https://github.com/Tajamul21/Grounded_Teacher) |
| - 📄 **Paper:** [Context Aware Grounded Teacher for Source Free Object Detection](https://huggingface.co/papers/2504.15404) |
|
|
| --- |
|
|
| ## 👨🔬 Authors |
|
|
| - **Tajamul Ashraf** |
| - Rajes Manna |
| - Partha Sarathi Purkayastha |
| - Tavaheed Tariq |
| - Janibul Bashir |
|
|
| --- |
|
|
| ## 📅 Publication |
|
|
| **Title:** Context Aware Grounded Teacher for Source Free Object Detection |
| **Published:** April 22 |
|
|
| --- |
|
|
| ## 📃 Citation |
|
|
| ```bibtex |
| @misc{ashraf2025contextawaregroundedteacher, |
| title={Context Aware Grounded Teacher for Source Free Object Detection}, |
| author={Tajamul Ashraf and Rajes Manna and Partha Sarathi Purkayastha and Tavaheed Tariq and Janibul Bashir}, |
| year={2025}, |
| eprint={2504.15404}, |
| archivePrefix={arXiv}, |
| primaryClass={cs.CV}, |
| url={https://arxiv.org/abs/2504.15404}, |
| } |
| ``` |
