Dataset Viewer
The dataset viewer is not available for this subset.
Cannot get the split names for the config 'default' of the dataset.
Exception:    SplitsNotFoundError
Message:      The split names could not be parsed from the dataset config.
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      StreamingDownloadManager(base_path=builder.base_path, download_config=download_config)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 81, in _split_generators
                  first_examples = list(islice(pipeline, self.NUM_EXAMPLES_FOR_FEATURES_INFERENCE))
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 32, in _get_pipeline_from_tar
                  fs: fsspec.AbstractFileSystem = fsspec.filesystem("memory")
                                                  ~~~~~~~~~~~~~~~~~^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/fsspec/registry.py", line 302, in filesystem
                  cls = get_filesystem_class(protocol)
                File "/usr/local/lib/python3.14/site-packages/fsspec/registry.py", line 239, in get_filesystem_class
                  raise ValueError(f"Protocol not known: {protocol}")
              ValueError: Protocol not known: memory
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/split_names.py", line 71, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ~~~~~~~~~~~~~~~~~~~~~~~^
                      path=dataset,
                      ^^^^^^^^^^^^^
                      config_name=config,
                      ^^^^^^^^^^^^^^^^^^^
                      token=hf_token,
                      ^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                      path,
                  ...<6 lines>...
                      **config_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
                  raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
              datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

Vessel Detection Dataset

Synthetic Aperture Radar (SAR) dataset for vessel detection, including dark/non-cooperative vessels not broadcasting AIS, developed as part of the OpenSAR Insight project. See the organization card for full project background, funding, and consortium details.

Overview

This dataset uses SAR images from the ESA Copernicus Sentinel-1 mission (Sentinel-1A and Sentinel-1B), which operate in all weather conditions, day and night. The selected Level 1 SAR products are Ground Range Detected (GRD) in wide interferometric mode (IW) and Single Look Complex (SLC) burst products.

Both available polarisation channels are used. VH (vertical-horizontal) polarisation is generally more conducive to ship detection, since it provides greater contrast between vessels and marine clutter, while VV (vertical-vertical) polarisation carries more information about sea-surface characteristics. A distinguishing feature of this dataset is the inclusion of Level 0 (L0, RAW) data extracted from the corresponding Level 1 products.

The dataset covers 15 SAR scenes. For each Level 1 product (GRD/SLC), the corresponding Level 2 Ocean (OCN) product was retrieved to add wind-condition information, complementing AIS ground truth from the xView3/SARFish reference database.

All L1 products were partitioned into non-overlapping 512x512 pixel blocks. Corresponding patches were extracted from GRD, SLC, L0 RAW, and L0 range-compressed data over the same geographic area, giving four co-registered patch types per block. Labels are provided in XML format.

Dataset organisation

The dataset is split into training, validation, and test folders. For each patch:

  • 512x512 VV and VH L1 SLC patches under /patches
  • Corresponding VV and VH L1 GRD patches under /patches
  • Corresponding VV and VH L0 patches under /raw
  • Corresponding VV and VH L0 range-compressed patches under /range_compressed_rescaled
  • XML file with patch/scene information and vessel labels under /labels

Manual review for higher-quality subset

Some labels are imperfect — offset from the vessel centre, or too small to fully encompass it. A manual review was performed to filter for the highest-quality labels; this filtered subset is listed in yolo_dataset_filtered.csv and was used to train the models in opensar-insight/vessel-detection-model.

Downloading the data

pip install -U huggingface_hub

huggingface-cli login
from huggingface_hub import snapshot_download

snapshot_download(
    repo_id="opensar-insight/vessel-detection-dataset",
    repo_type="dataset",
    local_dir="./data"
)

License

MIT License. See the repository LICENSE for details on components of the broader codebase.

Citation

@misc{opensarinsight,
  title        = {OpenSAR Insight: ML-ready datasets and models for direct insight generation from raw SAR data},
  author       = {{Indra Space} and {INTA} and {Universidad de Alcal\'a de Henares}},
  howpublished = {\url{https://github.com/ESA-PhiLab/OpenSARInsight}},
  note         = {Funded by ESA \(\Phi\)-lab}
}
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