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MetricScenes

A metrically-grounded, in-the-wild dataset. For more details, please visit the project page.

Paper

Title: Honey, I Shrunk the Arc de Triomphe!
Authors: Yuanbo Xiangli, Hanyu Chen, Xueqing Tsang, Noah Snavely
Project page: https://metricscenes.github.io/

Abstract

Metric scale monocular geometry estimation has seen significant progress through large-scale data aggregation, yet current foundation models suffer from a persistent ''scale-collapse'' phenomenon: distant landmarks and vast landscapes are metrically underestimated. This performance gap stems from a training data bottleneck, where existing metric-scale datasets are hardware-constrained to unvaried street-level LiDAR or short-range indoor scans, or consist of synthetic data that lacks the semantic complexity of the physical world. To bridge this gap, we curate a new metrically-grounded, in-the-wild dataset that we call Metricscenes, gathered from a variety of sources including Internet photo collections and stereo imagery. We estimate camera poses and initial depth maps for each scene using off-the-shelf methods, and recover absolute scale from geo-tagged metadata as well as known stereo camera baselines. We also improve the quality of depth maps derived from MetricScenes via a new two-stage Poisson completion method. Fine-tuning MoGe-2 on our dataset significantly mitigates scale-collapse and achieves superior metric accuracy in unconstrained, open-domain scenes while maintaining state-of-the-art performance on standard benchmarks.

Release Structure

MetricScenes is aggregated from AerialMegaDepth, MegaScenes, and Stereo4D. We develop pipelines to extract metric-scale depth maps in each case. The public release is organized as dataset_name/scene_id/frame_id/...:

MetricScenes/
├── AerialMegaDepth/
│   ├── 0000
│   │   ├── 1000570923_c2a177031b_o
│   │   │   ├── depth_complete.png
│   │   │   ├── depth_partial.png
│   │   │   ├── image.jpg
│   │   │   └── meta.json
│   │   ├── 1001414672_f286cdb145_o
│   │   │   └── ...
│   │   └── ...
│   ├── 0001
│   │   └── ...
│   └── ...
├── MegaScenes/
│   ├── 000
│   │   ├── 000352
│   │   │   ├── depth_complete.png
│   │   │   ├── depth_partial.png
│   │   │   ├── image.jpg
│   │   │   └── meta.json
│   │   ├── 000373
│   │   │   └── ...
│   │   └── ...
│   ├── 001
│   │   └── ...
│   └── ...
├── Stereo4D/
│   ├── -3Sx43OYGJ8
│   │   ├── 15081748_f99
│   │   │   ├── depth_complete.png
│   │   │   ├── depth_partial.png
│   │   │   ├── image.jpg
│   │   │   └── meta.json
│   │   ├── 21755088_f99
│   │   │   └── ...
│   │   └── ...
│   ├── -5JaYFNtYlM
│   │   └── ...
│   └── ...
│  
└── README.md

depth_partial.png is the incomplete depth from SfM/MVS or off-the-shelf geometric models; depth_complete.png is the completed depth using our proposed two-stage edge-aware Poisson completion method; image.jpg is the RGB image; meta.json contains camera parameters like intrinsics, extrinsics etc.

Licensing Metadata

The MetricScenes dataset is licensed under the Creative Commons Attribution 4.0 International License. The original images come with their own licenses.