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3D-Aware Semantic-Guided Generative Model for Human Synthesis (3D-SGAN) <br>_{Official PyTorch implementation of our ECCV 2022 paper}

Camera Pose	Semantic

Texture	Translation

3D-Aware Semantic-Guided Generative Model for Human Synthesis<br> Jichao Zhang, Enver Sangineto, Hao Tang, Aliaksandr Siarohin, Zhun Zhong, Nicu Sebe, Wei Wang <br> University of Trento, Snap Research, ETH Zurich, University of Modena e Reggio Emilia

Abstract: Generative Neural Radiance Field (GNeRF) models, which extract implicit 3D representations from 2D images, have recently been shown to produce realistic images representing rigid/semi-rigid objects, such as human faces or cars. However, they usually struggle to generate high-quality images representing non-rigid objects, such as the human body, which is of a great interest for many computer graphics applications. This paper proposes a 3D-aware Semantic-Guided Generative Model (3D-SGAN) for human image synthesis, which combines a GNeRF with a texture generator. The former learns an implicit 3D representation of the human body and outputs a set of 2D semantic segmentation masks. The latter transforms these semantic masks into a real image, adding a realistic texture to the human appearance. Without requiring additional 3D information, our model can learn 3D human representations with a photo-realistic, controllable generation. Our experiments on the DeepFashion dataset show that 3D-SGAN significantly outperforms the most recent baselines.

Paper: https://arxiv.org/abs/2112.01422 <br>

Install

conda env create -f environment.yml
conda activate sgan

Dataset

To-do lists

Training

1. we will provide the pretrained model of VAE-StyleGANv2, please put the pretrained model into the ./pretrained_models/. And change dataset path to yours by modifying config files.

2. 3D-SGAN Training

2.1) DeepFashion:

bash scripts/train_fashion.sh

2.2) VITON:

bash scripts/train_VITON.sh

Test and rendering

We will release the pretrained model of the entire pipeline.

1. DeepFashion:

bash scripts/test_fashion.sh

2. VITON:

bash scripts/test_VITON.sh

Inversion for real data editing

bash scripts/inverse_semantic.sh

bash scripts/inverse_human.sh

Geometry Visualization using the Normal

The Evaluation of Multiple-View Consistency: aMP (average Matching Points)

To-do list

Reference code

[1] https://github.com/autonomousvision/giraffe

[2] https://github.com/rosinality/stylegan2-pytorch

Citation

@article{zhang20213d,
  title={3D-Aware Semantic-Guided Generative Model for Human Synthesis},
  author={Zhang, Jichao and Sangineto, Enver and Tang, Hao and Siarohin, Aliaksandr and Zhong, Zhun and Sebe, Nicu and Wang, Wei},
  journal={ECCV},
  year={2022}
}