Dataset Card for Rock Glacier Detection

Dataset Summary

Rock Glacier Detection dataset with satelital images of rock glaciers in the Chilean Andes.

Supported Tasks and Leaderboards

• image-classification : Based on a satelitel images (from sentinel2), the goal of this task is to predict a rock glacier in the geographic area, if there any.
• image-segmentation : ...

Languages

Spanish

Dataset Structure

Data Instances

A sample from the image-classification training set is provided below:

df = load_dataset("alkzar90/rock-glacier-dataset", name="image-classification")

df["train"][666]

> {'image': <PIL.PngImagePlugin.PngImageFile image mode=RGBA size=128x128 at 0x7FB2EC58C6D0>,
 'labels': 0,
 'path': 'train/cordillera/1512.png'
}

A sample from the image-segmentation training set is provided below:

df = load_dataset("alkzar90/rock-glacier-dataset", name="image-segmentation")

df["train"][666]

> {'image': <PIL.PngImagePlugin.PngImageFile image mode=RGBA size=128x128 at 0x7FB2EB7C1160>,
 'masks': <PIL.PngImagePlugin.PngImageFile image mode=RGBA size=128x128 at 0x7FB2EC5A08E0>,
 'path': 'train/cordillera/1512.png'}

Data Fields

The data instances have the following fields:

• image : A PIL.Image.Image object containing the image. Note that when accessing the image column: dataset[0]["image"] the image file is automatically decoded. Decoding of a large number of image files might take a significant amount of time. Thus it is important to first query the sample index before the "image" column, i.e. dataset[0]["image"] should always be preferred over dataset["image"][0] .
• labels : an int classification label.

Class Label Mappings:

{
  "cordillera": 0
  "glaciar": 1,
}

Data Splits

train	validation	test
# of examples	7875	1125	2700

Dataset Creation

Curation Rationale

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Source Data

Initial Data Collection and Normalization

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Who are the source language producers?

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Annotations

Annotation process

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Who are the annotators?

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Personal and Sensitive Information

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Considerations for Using the Data

Social Impact of Dataset

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Discussion of Biases

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Other Known Limitations

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Additional Information

Dataset Curators

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Licensing Information

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Citation Information

@ONLINE {rock-glacier-dataset,
    author="CMM - Glaciares (UChile)",
    title="Rock Glacier Dataset",
    month="October",
    year="2022",
    url="https://github.com/alcazar90/rock-glacier-detection"
}

Contributions

Thanks to...