DeTracker: SDM-Car-SU Benchmark

SDM-Car-SU is a benchmark dataset for multi-object tracking in unstabilized satellite videos. It is built upon SDM-Car and simulates realistic on-orbit imaging conditions by introducing global background motion through moving imaging windows.

The dataset incorporates diverse motion patterns, including varying directions, speeds, and their combinations, to reflect the complex motion induced by satellite platform dynamics.

For more details, please refer to our project repository:
DeTracker: Motion-Decoupled Vehicle Detection and Tracking in Unstabilized Satellite Videos

Examples

Dataset Description

The released SDM-Car-SU dataset contains four subsets: U1, U2, U3, and Merge.

Subset	Description	Hugging Face	Google Drive	Baidu Netdisk
U1	1 pixel/frame displacement	Download	Download	Download
U2	2 pixels/frame displacement	Download	Download	Download
U3	3 pixels/frame displacement	Download	Download	Download
Merge	Union of U1, U2, and U3	Download	Download	Download

Subsets U1–U3 represent increasing levels of platform motion intensity, while Merge is the union of U1, U2, and U3.

Dataset Structure

SDM-Car-SU/
├── U1/                         # 1 pixel/frame displacement
│   ├── train_data/
│   │   ├── 1-1-1/
│   │   │   ├── img1/
│   │   │   └── gt.txt
│   │   └── ...
│   ├── test_data/
│   ├── val_data/
│   └── annotations/
│       ├── train.json
│       ├── test.json
│       └── val.json
├── U2/                         # 2 pixels/frame displacement
│   ├── train_data/
│   ├── test_data/
│   ├── val_data/
│   └── annotations/
├── U3/                         # 3 pixels/frame displacement
│   ├── train_data/
│   ├── test_data/
│   ├── val_data/
│   └── annotations/
└── Merge/                      # Union of U1, U2, and U3
    ├── train_data/
    │   ├── 1-1-1-1/
    │   │   ├── img1/
    │   │   └── gt.txt
    │   ├── 1-1-1-2/
    │   ├── 1-1-1-3/
    │   └── ...
    ├── test_data/
    ├── val_data/
    └── annotations/

In the Merge subset, the last suffix of each sequence folder indicates its source subset: -1, -2, and -3 correspond to U1, U2, and U3, respectively.

License

Please note that the SDM-Car-SU dataset is made available for academic research purposes only.

DeTracker: Motion-Decoupled Vehicle Detection and Tracking in Unstabilized Satellite Videos © 2026 by Jiajun Chen is licensed under CC BY-NC 4.0.

Citation

If you use this dataset or find our work helpful for your research, please cite:

@ARTICLE{11526742,
  author={Chen, Jiajun and Xiao, Jing and Cao, Shaohan and Zhu, Yuming and Liao, Liang and Pan, Jun and Wang, Mi},
  journal={IEEE Transactions on Geoscience and Remote Sensing}, 
  title={DeTracker: Motion-Decoupled Vehicle Detection and Tracking in Unstabilized Satellite Videos}, 
  year={2026},
  volume={64},
  pages={5623214-5623214},
  doi={10.1109/TGRS.2026.3694908}
}

@ARTICLE{10746500,
  author={Zhang, Zhen and Peng, Tao and Liao, Liang and Xiao, Jing and Wang, Mi},
  journal={IEEE Geoscience and Remote Sensing Letters}, 
  title={SDM-Car: A Dataset for Small and Dim Moving Vehicles Detection in Satellite Videos}, 
  year={2024},
  volume={21},
  pages={1-5},
  doi={10.1109/LGRS.2024.3493249}
}