Datasets:
iulia-elisa
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README.md
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# XAMI-dataset
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The XAMI dataset contains 1000 annotated images of observations from diverse sky regions of the XMM-Newton Optical Monitor (XMM-OM) image catalog. An additional 50 images with no annotations are included to help decrease the amount of False Positives or Negatives that may be caused by complex objects (e.g., large galaxies, clusters, nebulae).
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The XMM-Newton Optical Monitor (XMM-OM) image catalog holds about 9 million detections of nearly 6 million distinct sources. It is crucial for analyzing individual objects and contributes significantly to survey science. However, source flagging in the XMM-OM data needs improvement due to artefacts that can cause false detections and affect the precision of real sources, thie being a common issue for other space missions. -->
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### Artefacts
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A particularity of our XAMI dataset compared to every-day images datasets are the locations where artefacts usually appear.
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<img src="https://huggingface.co/datasets/iulia-elisa/XAMI-dataset/resolve/main/plots/artefact_distributions.png" alt="Examples of an image with multiple artefacts." />
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Here are some examples of common artefacts:
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<img src="https://huggingface.co/datasets/iulia-elisa/XAMI-dataset/resolve/main/plots/artefacts_examples.png" alt="Examples of common artefacts in the OM observations." width="400"/>
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# Annotation platforms
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The
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- [Zooniverse project](https://www.zooniverse.org/projects/ori-j/ai-for-artefacts-in-sky-images), where the resulted annotations are not externally visible.
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- [Roboflow project](https://universe.roboflow.com/iuliaelisa/xmm_om_artefacts_512/), which allows for more interactive and visual annotation projects.
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# The dataset format
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The
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# Downloading the dataset
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The dataset repository
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### Downloading the dataset archive from HuggingFace:
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```bash
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# Github
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git clone https://github.com/
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cd XAMI-dataset
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```
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# XAMI-dataset
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The **Git** repository for this dataset can be found **[here](https://github.com/ESA-Datalabs/XAMI-dataset)**.
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The XAMI dataset contains 1000 annotated images of observations from diverse sky regions of the XMM-Newton Optical Monitor (XMM-OM) image catalog. An additional 50 images with no annotations are included to help decrease the amount of False Positives or Negatives that may be caused by complex objects (e.g., large galaxies, clusters, nebulae).
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### Artefacts
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A particularity of our XAMI dataset compared to every-day images datasets are the locations where artefacts usually appear.
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<img src="https://huggingface.co/datasets/iulia-elisa/XAMI-dataset/resolve/main/plots/artefact_distributions.png" alt="Examples of an image with multiple artefacts." />
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Here are some examples of common artefacts in the dataset:
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<img src="https://huggingface.co/datasets/iulia-elisa/XAMI-dataset/resolve/main/plots/artefacts_examples.png" alt="Examples of common artefacts in the OM observations." width="400"/>
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# Annotation platforms
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The images have been annotated using the following projects:
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- [Zooniverse project](https://www.zooniverse.org/projects/ori-j/ai-for-artefacts-in-sky-images), where the resulted annotations are not externally visible.
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- [Roboflow project](https://universe.roboflow.com/iuliaelisa/xmm_om_artefacts_512/), which allows for more interactive and visual annotation projects.
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# The dataset format
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The dataset is splited into train and validation categories and contains annotated artefacts in COCO format for Instance Segmentation. We use multilabel Stratified K-fold technique (**k=4**) to balance class distributions across splits. We choose to work with a single dataset splits version (out of 4), but also provide means to work with all 4 versions.
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Please check [Dataset Structure](Datasets-Structure.md) for a more detailed structure of our dataset in COCO and YOLOv8-Seg format.
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# Downloading the dataset
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The dataset repository can be found on [HuggingFace](https://huggingface.co/datasets/iulia-elisa/XAMI-dataset) and [Github](https://github.com/IuliaElisa/XAMI-dataset).
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### Downloading the dataset archive from HuggingFace:
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```bash
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# Github
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git clone https://github.com/ESA-Datalabs/XAMI-dataset.git
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cd XAMI-dataset
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```
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or
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