ComfyUI-AnimePose
Licensed under the GNU Affero General Public License v3.0 (see LICENSE).

================================================================================
Upstream work
================================================================================

This project is a derivative of:

    bizarre-pose-estimator
    https://github.com/ShuhongChen/bizarre-pose-estimator
    Copyright (c) Shuhong Chen and Matthias Zwicker
    Licensed under the GNU Affero General Public License v3.0

Everything that makes pose estimation on illustrated characters work here --
the model architecture, the trained weights, the segmentation model, the crop
geometry and the keypoint schema -- is their research and their work. This
project contributes packaging: a ComfyUI node, a Detectron2-free reimplementation
of the inference path, and a confidence gate on top of the model's heatmaps.

If you use this, cite their paper:

    @inproceedings{chen2022bizarre,
        title={Transfer Learning for Pose Estimation of Illustrated Characters},
        author={Chen, Shuhong and Zwicker, Matthias},
        booktitle={Proceedings of the IEEE/CVF Winter Conference on
                   Applications of Computer Vision},
        year={2022}
    }

The published weight files are a repackaging of their released checkpoints:
same tensors, converted to safetensors, with the unused Detectron2 branch
removed. `scripts/verify_weights.py` checks this claim tensor-by-tensor
against the official release.

Because the upstream work is AGPL-3.0, so is this, and so is anything derived
from it. In particular, if you run this as part of a network service, the
AGPL's section 13 requires you to offer the corresponding source to the users
of that service.

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Other components
================================================================================

The OpenPose-18 skeleton renderer in anime_pose/pose_convert.py reproduces the
drawing conventions (limb pairs, colours, stick width) of `draw_bodypose` from
comfyui_controlnet_aux's DWPose module, so output is interchangeable with it:

    https://github.com/Fannovel16/comfyui_controlnet_aux

The keypoint prior is torchvision's keypointrcnn_resnet50_fpn, standing in for
the Detectron2 model the original uses:

    https://github.com/pytorch/vision  (BSD-3-Clause)