ultralytics/docs/en/datasets/obb/dota8.md

comments	description	keywords
true	Discover the versatile DOTA8 dataset, perfect for testing and debugging oriented detection models. Learn how to get started with YOLOv8-obb model training.	Ultralytics, YOLOv8, oriented detection, DOTA8 dataset, dataset, model training, YAML

DOTA8 Dataset

Introduction

Ultralytics DOTA8 is a small, but versatile oriented object detection dataset composed of the first 8 images of 8 images of the split DOTAv1 set, 4 for training and 4 for validation. This dataset is ideal for testing and debugging object detection models, or for experimenting with new detection approaches. With 8 images, it is small enough to be easily manageable, yet diverse enough to test training pipelines for errors and act as a sanity check before training larger datasets.

This dataset is intended for use with Ultralytics HUB and YOLOv8.

Dataset YAML

A YAML (Yet Another Markup Language) file is used to define the dataset configuration. It contains information about the dataset's paths, classes, and other relevant information. In the case of the DOTA8 dataset, the dota8.yaml file is maintained at https://github.com/ultralytics/ultralytics/blob/main/ultralytics/cfg/datasets/dota8.yaml.

!!! Example "ultralytics/cfg/datasets/dota8.yaml"

```yaml
--8<-- "ultralytics/cfg/datasets/dota8.yaml"
```

Usage

To train a YOLOv8n-obb model on the DOTA8 dataset for 100 epochs with an image size of 640, you can use the following code snippets. For a comprehensive list of available arguments, refer to the model Training page.

!!! Example "Train Example"

=== "Python"

    ```python
    from ultralytics import YOLO

    # Load a model
    model = YOLO('yolov8n-obb.pt')  # load a pretrained model (recommended for training)

    # Train the model
    results = model.train(data='dota8.yaml', epochs=100, imgsz=640)
    ```

=== "CLI"

    ```bash
    # Start training from a pretrained *.pt model
    yolo obb train data=dota8.yaml model=yolov8n-obb.pt epochs=100 imgsz=640
    ```

Sample Images and Annotations

Here are some examples of images from the DOTA8 dataset, along with their corresponding annotations:

• Mosaiced Image: This image demonstrates a training batch composed of mosaiced dataset images. Mosaicing is a technique used during training that combines multiple images into a single image to increase the variety of objects and scenes within each training batch. This helps improve the model's ability to generalize to different object sizes, aspect ratios, and contexts.

The example showcases the variety and complexity of the images in the DOTA8 dataset and the benefits of using mosaicing during the training process.

Citations and Acknowledgments

If you use the DOTA dataset in your research or development work, please cite the following paper:

!!! Quote ""

=== "BibTeX"

    ```bibtex
    @article{9560031,
      author={Ding, Jian and Xue, Nan and Xia, Gui-Song and Bai, Xiang and Yang, Wen and Yang, Michael and Belongie, Serge and Luo, Jiebo and Datcu, Mihai and Pelillo, Marcello and Zhang, Liangpei},
      journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
      title={Object Detection in Aerial Images: A Large-Scale Benchmark and Challenges},
      year={2021},
      volume={},
      number={},
      pages={1-1},
      doi={10.1109/TPAMI.2021.3117983}
    }
    ```

A special note of gratitude to the team behind the DOTA datasets for their commendable effort in curating this dataset. For an exhaustive understanding of the dataset and its nuances, please visit the official DOTA website.