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description: Explore docs covering Ultralytics YOLO detection, pose & RTDETRDecoder. Comprehensive guides to help you understand Ultralytics nn modules.
keywords: Ultralytics, YOLO, Detection, Pose, RTDETRDecoder, nn modules, guides
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# Reference for `ultralytics/nn/modules/head.py`

!!! note

    This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/modules/head.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/nn/modules/head.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/nn/modules/head.py) 🛠️. Thank you 🙏!

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## ::: ultralytics.nn.modules.head.Detect
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## ::: ultralytics.nn.modules.head.Segment
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## ::: ultralytics.nn.modules.head.Pose
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## ::: ultralytics.nn.modules.head.Classify
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## ::: ultralytics.nn.modules.head.RTDETRDecoder
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