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---

license: cc-by-nc-4.0
---


# ReLaGS: Relational Language Gaussian Splatting

This repository contains the official Hugging Face model release for **ReLaGS (CVPR 2026)**.

Project page: https://dfki-av.github.io/ReLaGS/

---

## Overview

**ReLaGS** is a framework for **open-vocabulary 3D scene understanding** built on top of Gaussian Splatting reconstructions.

It combines:
- A **Graph Neural Network (GNN)** trained on **3RScan** for predicting open-vocabulary relations in 3D scene graphs
- A set of **Gaussian Splatting reconstructed scenes** enriched with **open-vocabulary semantic features**

The release is intended for **evaluation and reproducibility** of open-vocabulary scene graph reasoning in reconstructed 3D scenes.


---

## Repository Structure


---

## 1. GNN Model (`GNN_model/`)



This directory contains a pretrained **Graph Neural Network** for predicting **open-vocabulary relations** in 3D scene graphs.



### Training data:

- 3RScan dataset



### Task:

Given a scene graph with object-level nodes, predict:

- Pairwise relations between objects

- Open-vocabulary relation labels (language-based)



### Inputs:

- Node features (geometry + appearance + learned embeddings)

- Scene graph structure (nodes + edges)



### Outputs:

- Directed edges with predicted relation labels



---



## 2. Scenes (`scenes/`)



This directory contains reconstructed **Gaussian Splatting scenes** (based on LeRF-style reconstructions) augmented with semantic features.





---



## Citation



If you find ReLaGS useful for your research, please cite:



```bibtex

@inproceedings{xiearafa2026relags,

  title     = {ReLaGS: Relational Language Gaussian Splatting},

  author    = {Xie, Yaxu and Arafa, Abdalla and Javanmardi, Alireza and Millerdurai, Christen and Hu, Jia Cheng and Wang, Shaoxiang and Pagani, Alain and Stricker, Didier},

  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},

  year      = {2026}

}

```