# GeoPeP: Geometric Perception for Mathematical Reasoning (diagram-caption subset)

Welcome to the caption-based subset of GeoPeP (Geomatic PercePtion-oriented dataset) — a large-scale dataset designed to enhance geometric perception and visual reasoning capabilities in multimodal large language models (MLLMs).
 
📘 **Overview**

GeoPeP-Caption consists of 100,000 synthetic diagrams paired with automatically generated fine-grained captions. Each caption provides a structured description of the geometric primitives within the diagram, enabling vision-language models to learn detailed spatial reasoning and accurate object grounding.

This dataset is part of the broader GeoPeP project, which includes both caption-based (will be released soon) and instruction-following subsets to bridge the gap between visual perception and mathematical reasoning.

🔗 **Download Link**

You can access and download the GeoPeP-Caption dataset here:

👉 [GeoPeP-Caption](https://drive.google.com/file/d/1YPXaNhY2O5fSUsZYQjJ5vV5oKkSTrymP/view?usp=drive_link)

📦 **Dataset Structure**
```
{
  "image": "image_id.png",
  "conversations": [
            {
                "from": "human",
                "value": "<image>\nPlease provide structured geometric information for the image."
            },
            {
                "from": "gpt",
                "value":  "First, I count 3 prominent objects in the image, including 1 equilateral quadrilateral, 1 isosceles trapezoid, 1 pentagon. Next, for the shape information, object BFLV is an equilateral quadrilateral, object CGOY is an isosceles trapezoid, object AHIWX is a pentagon. Furthermore, I also know the fine-grained bounding box coordinates: the equilateral quadrilateral BFLV is located at [0.32, 0.46, 0.56, 0.68], the isosceles trapezoid CGOY is located at [0.23, 0.29, 0.58, 0.61], the pentagon AHIWX is located at [0.22, 0.24, 0.78, 0.76]. Finally, let me explain the relationships: equilateral quadrilateral BFLV is in the bottom right relative to isosceles trapezoid CGOY; equilateral quadrilateral BFLV is in the bottom left relative to pentagon AHIWX."
            }
        ]
}
```

🤖 **Intended Use**

* Pretraining and fine-tuning Multimodal LLMs.
* Enhancing geometric perception and caption grounding in visual models.
* Supporting research in visual reasoning and math understanding

📚 **Citation**

If you use this dataset, please cite our work:
```
@article{sun2025mathglance,
  author    = {Sun, Yanpeng and Zhang, Shan and Tang, Wei and Chen, Aotian and Koniusz, Piotr and Zou, Kai and Xue, Yuan and van den Hengel, Anton},
  title     = {MATHGLANCE: Multimodal Large Language Models Do Not Know Where to Look in Mathematical Diagrams},
  journal = {arXiv preprint arXiv:2503.20745},
  year      = {2025}
}
```
📬 **Contact**

If you have any questions or suggestions, please open an issue or contact shan.zhang@adelaide.edu.au.