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CityTopia

Description

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.

Features

  • High Fidelity: Created using cutting-edge Unreal Engine 5 assets for realistic urban scenes.
  • Diverse Annotations: Includes semantic and instance annotations at 1080p resolution.
  • Versatile Renders: Contains day and night scenes in multiple resolutions.
  • Customizability: Provides source files for city generation via Houdini, enabling custom dataset creation.

Files and Descriptions

File Name Description Size
CityTopia-Annotations-1080p.zip 3D semantic and instance annotations. 1.2 GB
CityTopia-RGB-Day-540p.zip Rendered RGB images of daytime scenes. 7.1 GB
CityTopia-RGB-Night-540p.zip Rendered RGB images of nighttime scenes. 2.8 GB
CityTopia-RGB-Day-1080p.zip High-resolution rendered RGB images of daytime scenes. 50 GB
CityTopia-RGB-Night-1080p.zip High-resolution rendered RGB images of nighttime scenes. 20 GB
CityTopia-HoudiniFiles.zip Houdini source code for generating virtual cities, enabling customization. 0.4 GB

Recommendations

  • Use CityTopia-Annotations-1080p.zip for all semantic and instance labeling needs.
  • For lower resolution, opt for CityTopia-RGB-Day-540p.zip and CityTopia-RGB-Night-540p.zip.
  • Select 1080p files (CityTopia-RGB-Day-1080p.zip, CityTopia-RGB-Night-1080p.zip) only if high-resolution images are necessary.
  • Use CityTopia-HoudiniFiles.zip if custom 3D cities are required for advanced experiments.