CoNR: Collaborative Neural Rendering using Anime Character Sheets

HomePage | Colab(comming very soon) | arXiv

Introduction

This project is the official implement of Collaborative Neural Rendering using Anime Character Sheets, which aims to genarate vivid dancing videos from hand-drawn anime character sheets(ACS). Watch more demos in our HomePage.

Contributors: @transpchan, @P2Oileen, @hzwer

Usage

Prerequisites

NVIDIA GPU + CUDA + CUDNN
Python 3.6

Installation

Clone this repository

git clone https://github.com/megvii-research/CoNR

Dependencies

To install all the dependencies, please run the following commands.

cd CoNR
pip install -r requirements.txt

Download Weights Download weights from Google Drive. Alternatively, you can download from Baidu Netdisk (password:RDxc).

mkdir weights && cd weights
gdown https://drive.google.com/uc?id=1M1LEpx70tJ72AIV2TQKr6NE_7mJ7tLYx
gdown https://drive.google.com/uc?id=1YvZy3NHkJ6gC3pq_j8agcbEJymHCwJy0
gdown https://drive.google.com/uc?id=1AOWZxBvTo9nUf2_9Y7Xe27ZFQuPrnx9i
gdown https://drive.google.com/uc?id=19jM1-GcqgGoE1bjmQycQw_vqD9C5e-Jm

Prepare inputs

We prepared two Ultra-Dense Pose sequences for two characters, you can generate more UDPs via 3D models and motions. Baidu Netdisk (password:RDxc)

# for short hair girl
gdown https://drive.google.com/uc?id=11HMSaEkN__QiAZSnCuaM6GI143xo62KO
unzip short_hair.zip
mv short_hair/ poses/

# for double ponytail girl
gdown https://drive.google.com/uc?id=1WNnGVuU0ZLyEn04HzRKzITXqib1wwM4Q
unzip double_ponytail.zip
mv double_ponytail/ poses/

We provide sample inputs of anime character sheets, you can also draw more by yourself.

# for short hair girl
gdown https://drive.google.com/uc?id=1r-3hUlENSWj81ve2IUPkRKNB81o9WrwT
unzip short_hair_images.zip
mv short_hair_images/ character_sheet/

# for double ponytail girl
gdown https://drive.google.com/uc?id=1XMrJf9Lk_dWgXyTJhbEK2LZIXL9G3MWc
unzip double_ponytail_images.zip
mv double_ponytail_images/ character_sheet/

RUN!

We provide two ways: with web UI or via terminal.

with web UI (powered by Streamlit)

streamlit run streamlit.py --server_port=8501

then open your browser and visit localhost:8501, follow the instructions to genarate video.

via terminal

mkdir {dir_to_save_result}

python -m torch.distributed.launch \
--nproc_per_node=1 train.py --mode=test \
--world_size=1 --dataloaders=2 \
--test_input_poses_images={dir_to_poses} \
--test_input_person_images={dir_to_character_sheet} \
--test_output_dir={dir_to_save_result} \
--test_checkpoint_dir={dir_to_weights}

ffmpeg -r 30 -y -i {dir_to_save_result}/%d.png -r 30 -c:v libx264 output.mp4 -r 30

Citation

@article{lin2022conr,
  title={Collaborative Neural Rendering using Anime Character Sheets},
  author={Lin, Zuzeng and Huang, Ailin and Huang, Zhewei and Hu, Chen and Zhou, Shuchang},
  journal={arXiv preprint arXiv:2207.05378},
  year={2022}
}