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--- |
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license: other |
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license_name: slab-license |
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license_link: LICENSE |
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tags: |
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- aigc |
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- city |
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- synthetic |
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pretty_name: CityTopia |
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size_categories: |
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- 10B<n<100B |
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--- |
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# The CityTopia Dataset |
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from **[CityDreamer4D: Compositional Generative Model of Unbounded 4D Cities](https://arxiv.org/abs/2501.08983)** |
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[Haozhe Xie](https://haozhexie.com), |
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[Zhaoxi Chen](https://frozenburning.github.io/), |
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[Fangzhou Hong](https://hongfz16.github.io/), |
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[Ziwei Liu](https://liuziwei7.github.io/) |
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from [S-Lab, Nanyang Technological University](https://www.mmlab-ntu.com/) |
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**TL; DR:** CityTopia is the largest synthetic dataset for 3D cities with annotations, offering high-fidelity scenes generated using 3D assets from the Unreal Engine 5 CitySample project. |
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**More download options**, including Google Drive and Baidu Drive, are available [here](https://gateway.infinitescript.com/s/CityTopia). |
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%3C!-- HTML_TAG_END --> |
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#### Features |
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- **High Fidelity**: Created using cutting-edge Unreal Engine 5 assets for realistic urban scenes. |
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- **Diverse Annotations**: Includes semantic and instance annotations at 1080p resolution. |
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- **Versatile Renders**: Contains day and night scenes in multiple resolutions. |
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- **Customizability**: Provides source files for city generation via Houdini, enabling custom dataset creation. |
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#### Files and Descriptions |
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| File Name | Description | Size | |
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|----------------------------------------|-----------------------------------------------------------------------------|-------| |
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| `CityTopia-Annotations-1080p.zip` | 3D semantic and instance annotations. | 1.2 GB | |
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| `CityTopia-RGB-Day-540p.zip` | Rendered RGB images of daytime scenes. | 7.1 GB | |
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| `CityTopia-RGB-Night-540p.zip` | Rendered RGB images of nighttime scenes. | 2.8 GB | |
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| `CityTopia-RGB-Day-1080p.zip` | High-resolution rendered RGB images of daytime scenes. | 50 GB | |
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| `CityTopia-RGB-Night-1080p.zip` | High-resolution rendered RGB images of nighttime scenes. | 20 GB | |
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| `CityTopia-HoudiniFiles.zip` | Houdini source code for generating virtual cities, enabling customization. | 0.4 GB | |
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#### Recommendations |
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- Use `CityTopia-Annotations-1080p.zip` for all semantic and instance labeling needs. |
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- For lower resolution, opt for `CityTopia-RGB-Day-540p.zip` and `CityTopia-RGB-Night-540p.zip`. |
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- Select 1080p files (`CityTopia-RGB-Day-1080p.zip`, `CityTopia-RGB-Night-1080p.zip`) only if high-resolution images are necessary. |
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- Use `CityTopia-HoudiniFiles.zip` if custom 3D cities are required for advanced experiments. |
