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MimicMotion

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MimicMotion: High-Quality Human Motion Video Generation with Confidence-aware Pose Guidance
Yuang Zhang1,2, Jiaxi Gu1, Li-Wen Wang1, Han Wang1,2, Junqi Cheng1, Yuefeng Zhu1, Fangyuan Zou1
[1Tencent; 2Shanghai Jiao Tong University]


Highlights: rich details, good temporal smoothness, and long video length.

Overview

model architecture
An overview of the framework of MimicMotion.

In recent years, generative artificial intelligence has achieved significant advancements in the field of image generation, spawning a variety of applications. However, video generation still faces considerable challenges in various aspects such as controllability, video length, and richness of details, which hinder the application and popularization of this technology. In this work, we propose a controllable video generation framework, dubbed MimicMotion, which can generate high-quality videos of arbitrary length with any motion guidance. Comparing with previous methods, our approach has several highlights. Firstly, with confidence-aware pose guidance, temporal smoothness can be achieved so model robustness can be enhanced with large-scale training data. Secondly, regional loss amplification based on pose confidence significantly eases the distortion of image significantly. Lastly, for generating long smooth videos, a progressive latent fusion strategy is proposed. By this means, videos of arbitrary length can be generated with acceptable resource consumption. With extensive experiments and user studies, MimicMotion demonstrates significant improvements over previous approaches in multiple aspects.

News

  • [2024-07-08]: 🔥 A superior model checkpoint has been released as version 1.1. The maximum number of video frames has now been expanded from 16 to 72, significantly enhancing the video quality!
  • [2024-07-01]: Project page, code, technical report and a basic model checkpoint are released. A better checkpoint supporting higher quality video generation will be released very soon. Stay tuned!

Quickstart

For the initial released version of the model checkpoint, it supports generating videos with a maximum of 72 frames at a 576x1024 resolution. If you encounter insufficient memory issues, you can appropriately reduce the number of frames.

Environment setup

Recommend python 3+ with torch 2.x are validated with an Nvidia V100 GPU. Follow the command below to install all the dependencies of python:

conda env create -f environment.yaml
conda activate mimicmotion

Download weights

If you experience connection issues with Hugging Face, you can utilize the mirror endpoint by setting the environment variable: export HF_ENDPOINT=https://hf-mirror.com. Please download weights manually as follows:

cd MimicMotions/
mkdir models
  1. Download DWPose pretrained model: dwpose 
    mkdir -p models/DWPose
wget https://huggingface.co/yzd-v/DWPose/resolve/main/yolox_l.onnx?download=true -O models/DWPose/yolox_l.onnx
wget https://huggingface.co/yzd-v/DWPose/resolve/main/dw-ll_ucoco_384.onnx?download=true -O models/DWPose/dw-ll_ucoco_384.onnx
  2. Download the pre-trained checkpoint of MimicMotion from Huggingface 
    wget -P models/ https://huggingface.co/ixaac/MimicMotion/resolve/main/MimicMotion_1-1.pth
  3. The SVD model stabilityai/stable-video-diffusion-img2vid-xt-1-1 will be automatically downloaded.

Finally, all the weights should be organized in models as follows

models/
├── DWPose
│   ├── dw-ll_ucoco_384.onnx
│   └── yolox_l.onnx
└── MimicMotion_1-1.pth

Model inference

A sample configuration for testing is provided as test.yaml. You can also easily modify the various configurations according to your needs.

python inference.py --inference_config configs/test.yaml

Tips: if your GPU memory is limited, try set env PYTORCH_CUDA_ALLOC_CONF=max_split_size_mb:256.

VRAM requirement and Runtime

For the 35s demo video, the 72-frame model requires 16GB VRAM (4060ti) and finishes in 20 minutes on a 4090 GPU.

The minimum VRAM requirement for the 16-frame U-Net model is 8GB; however, the VAE decoder demands 16GB. You have the option to run the VAE decoder on CPU.

Citation

@article{mimicmotion2024,
  title={MimicMotion: High-Quality Human Motion Video Generation with Confidence-aware Pose Guidance},
  author={Yuang Zhang and Jiaxi Gu and Li-Wen Wang and Han Wang and Junqi Cheng and Yuefeng Zhu and Fangyuan Zou},
  journal={arXiv preprint arXiv:2406.19680},
  year={2024}
}