README.md

---
license: apache-2.0
task_categories:
- visual-question-answering
language:
- en
tags:
- Video
- Text
size_categories:
- 1K<n<10K
---

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# Visual Spatial Intelligence Benchmark (VSI-Bench)
This repository contains the visual spatial intelligence benchmark (VSI-Bench), introduced in [Thinking in Space: How Multimodal Large Language Models See, Remember and Recall Spaces](https://arxiv.org/pdf/). 


## Files
The `test-00000-of-00001.parquet` file contains the complete dataset annotations and pre-loaded images, ready for processing with HF Datasets. It can be loaded using the following code:

```python
from datasets import load_dataset
vsi_bench = load_dataset("nyu-visionx/VSI-Bench")
```
Additionally, we provide the videos in `*.zip`.

## Dataset Description
VSI-Bench quantitatively evaluates the visual-spatial intelligence of MLLMs from egocentric video. VSI-Bench comprises over 5,000 question-answer pairs derived from 288 real videos. These videos are sourced from the validation sets of the public indoor 3D scene reconstruction datasets `ScanNet`, `ScanNet++`, and `ARKitScenes`, and represent diverse environments -- including residential spaces, professional settings (e.g., offices, labs), and industrial spaces (e.g., factories) and multiple geographic regions. By repurposing these existing 3D reconstruction and understanding datasets, VSI-Bench benefits from accurate object-level annotations, which are used in question generation and could support future studies exploring the connection between MLLMs and 3D reconstruction.

The dataset contains the following fields:

| Field Name | Description |
| :--------- | :---------- |
| `idx` | Global index of the entry in the dataset |
| `dataset` | Video source: `scannet`, `arkitscenes` or `scannetpp` |
| `scene_name` | Scene (video) name for each question-answer pair |
| `question_type` | The type of task for question |
| `question` | Question asked about the video |
| `options` | Choices for the question (only for multiple choice questions) |
| `ground_truth` | Ground truth answer for the question |

## Evaluation

VSI-Bench evaluates performance using two metrics: for multiple-choice questions, we use `Accuracy`, calculated based on exact matches. For numerical-answer questions, we introduce a new metric, `MRA (Mean Relative Accuracy)`, to assess how closely model predictions align with ground truth values.

We provide an out-of-the-box evaluation of VSI-Bench in our [GitHub repository](https://github.com/vision-x-nyu/thinking-in-space), including the [metrics](https://github.com/vision-x-nyu/thinking-in-space/blob/main/lmms_eval/tasks/vsibench/utils.py#L109C1-L155C36) implementation used in our framework. For further detailes, users can refer to our paper and GitHub repository.

## Citation

```bibtex
@article{yang2024think,
    title={{Thinking in Space: How Multimodal Large Language Models See, Remember and Recall Spaces}},
    author={Yang, Jihan and Yang, Shusheng and Gupta, Anjali and Han, Rilyn and Fei-Fei, Li and Xie, Saining},
    year={2024},
    journal={arXiv preprint arXiv:2412.14171},
}
```