UAV, UGV, Quadruped, Handheld

SubT-MRS

SLAM robustness across sensor degradation and heterogeneous robots

Real-world multi-robot LiDAR, fisheye, thermal and inertial recordings stress SLAM under subterranean, off-road and extreme visibility conditions.

Metadata: Complete Metadata source documented Released 2023

Quick facts

Vehicle type
UAV, UGV, Quadruped, Handheld
Environment
Indoor, Outdoor
Data origin
Real-world
Sensor count
7
Ground truth
Available
Calibration
Parameters Only
Annotations
Not reported

Sensor overview

High-level sensor availability before the detailed sensor records below.

Ground truth

Reference scope, method, rate, coverage, and provenance.

Ground-truth references for SubT-MRS
Scope Method Reference system Count Rate Coverage Reference provenance
External
Measured using equipment independent of the platform’s normal onboard sensor pipeline.
Derived
Computed primarily from the dataset’s own recorded sensors.
Hybrid
Combines independent reference equipment with onboard measurements.
6DoF Other Reference-map alignment with visual/LiDAR/inertial fusion · FARO Focus 3D S120 Not reported Not reported Unknown Reference provenance
External
Measured using equipment independent of the platform’s normal onboard sensor pipeline.
Derived
Computed primarily from the dataset’s own recorded sensors.
Hybrid
Combines independent reference equipment with onboard measurements.
Hybrid
Reference notes
External static map plus input-stream estimation; full coverage is the paper claim. ±2 mm is static-map/scanner characterization, not trajectory accuracy.

Calibration and synchronization

Reported calibration level, reproducibility signals, and supporting notes.

Level
Parameters Only
Processed parameters
Available
Raw calibration data
Not reported
Calibration targets
Not reported

Parameters only

Processed calibration parameters are reported, but raw calibration data is not reported.

Notes

Kalibr camera/IMU, CAD LiDAR/IMU, sunlight-heated 7×9 thermal board and static Allan variance; downloadable raw calibration inventory is not established.

Known or intentional limitations

Reported constraints and characteristics to check before using the dataset.

This entry covers real-world recordings. The separately released TartanAir simulation used by challenge tooling is not merged into its origin or totals.

Sensor packs and availability vary across aerial, legged, ground and handheld platforms. Ambiguous printed image dimension order remains unknown.

Survey maps constrain input-based visual/LiDAR/inertial reference generation. Scanner precision does not certify trajectory accuracy, and complete downloadable reference coverage remains unverified.

Calibration parameters are documented; complete raw sessions and a universal achieved timing bound remain unknown.

Cameras

Camera 1

Model
Leopard Imaging LI-XAVIER
Setup
Fisheye
Count
4
Effective cameras
4
Modality
Rgb
Resolution
Not reported
Rate
24 Hz
Shutter
Not Reported
Lens type
Not Reported
HFOV
Not reported
VFOV
Not reported
Notes
Figure prints 686×816 pixels without unambiguous width/height convention; standard pack, not every platform.

Camera 2

Model
FLIR Boson
Setup
Mono
Count
1
Effective cameras
1
Modality
Thermal
Resolution
Not reported
Rate
60 Hz
Shutter
Not Reported
Lens type
Not Reported
HFOV
Not reported
VFOV
Not reported
Notes
Figure prints 512×640 pixels; scalar dimensions left unknown pending orientation confirmation.

IMUs

Epson M-G365

Model
Epson M-G365
Count
1
Accel / gyro
Not reported

GNSS

Not reported

LiDAR

Velodyne VLP16

Model or name
Velodyne VLP16
Count
1
Dimensions
3
Rate
10 Hz
Channels
Not reported
Range
Not reported

Radar

Not reported

Additional sensors

Not reported

Annotations

Reported annotation availability and task support.

Availability
Not reported
Format
Not reported
Class count
Not reported
Semantic segmentation Not reported
Instance segmentation Not reported
Object detection Not reported
Optical flow Not reported
Depth ground truth Not reported

Citation

Citation key and BibTeX kept at the end of the page for reference.

Citation key
zhao2024subtmrs

BibTeX

@misc{zhao2024subtmrs,
  author = {Shibo Zhao and Yuanjun Gao and Tianhao Wu and Damanpreet Singh and Rushan Jiang and Haoxiang Sun and Mansi Sarawata and Yuheng Qiu and Warren Whittaker and Ian Higgins and Yi Du and Shaoshu Su and Can Xu and John Keller and Jay Karhade and Lucas Nogueira and Sourojit Saha and Ji Zhang and Wenshan Wang and Chen Wang and Sebastian Scherer},
  title = {SubT-MRS Dataset: Pushing SLAM Towards All-weather Environments},
  year = {2024},
  url = {https://openaccess.thecvf.com/content/CVPR2024/html/Zhao_SubT-MRS_Dataset_Pushing_SLAM_Towards_All-weather_Environments_CVPR_2024_paper.html}
}

Dataset corrections

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