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README.md
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license: apache-2.0
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---
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# OpenLRM: Open-Source Large Reconstruction Models
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[![Code License](https://img.shields.io/badge/Code%20License-Apache_2.0-yellow.svg)](LICENSE)
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[![Weight License](https://img.shields.io/badge/Weight%20License-CC%20By%20NC%204.0-red)](LICENSE_WEIGHT)
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[![LRM](https://img.shields.io/badge/LRM-Arxiv%20Link-green)](https://arxiv.org/abs/2311.04400)
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[![HF Models](https://img.shields.io/badge/Models-Huggingface%20Models-bron)](https://huggingface.co/zxhezexin)
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[![HF Demo](https://img.shields.io/badge/Demo-Huggingface%20Demo-blue)](https://huggingface.co/spaces/zxhezexin/OpenLRM)
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<img src="assets/rendered_video/teaser.gif" width="75%" height="auto"/>
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<div style="text-align: left">
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<img src="assets/mesh_snapshot/crop.owl.ply00.png" width="12%" height="auto"/>
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<img src="assets/mesh_snapshot/crop.owl.ply01.png" width="12%" height="auto"/>
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<img src="assets/mesh_snapshot/crop.building.ply00.png" width="12%" height="auto"/>
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<img src="assets/mesh_snapshot/crop.building.ply01.png" width="12%" height="auto"/>
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<img src="assets/mesh_snapshot/crop.rose.ply00.png" width="12%" height="auto"/>
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<img src="assets/mesh_snapshot/crop.rose.ply01.png" width="12%" height="auto"/>
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</div>
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## News
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- [2024.03.04] Version update v1.1. Release model weights trained on both Objaverse and MVImgNet. Codebase is majorly refactored for better usability and extensibility. Please refer to [v1.1.0](https://github.com/3DTopia/OpenLRM/releases/tag/v1.1.0) for details.
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- [2024.01.09] Updated all v1.0 models trained on Objaverse. Please refer to [HF Models](https://huggingface.co/zxhezexin) and overwrite previous model weights.
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- [2023.12.21] [Hugging Face Demo](https://huggingface.co/spaces/zxhezexin/OpenLRM) is online. Have a try!
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- [2023.12.20] Release weights of the base and large models trained on Objaverse.
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- [2023.12.20] We release this project OpenLRM, which is an open-source implementation of the paper [LRM](https://arxiv.org/abs/2311.04400).
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## Setup
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### Installation
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```
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git clone https://github.com/3DTopia/OpenLRM.git
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cd OpenLRM
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```
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### Environment
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- Install requirements for OpenLRM first.
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```
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pip install -r requirements.txt
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```
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- Please then follow the [xFormers installation guide](https://github.com/facebookresearch/xformers?tab=readme-ov-file#installing-xformers) to enable memory efficient attention inside [DINOv2 encoder](openlrm/models/encoders/dinov2/layers/attention.py).
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## Quick Start
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### Pretrained Models
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- Model weights are released on [Hugging Face](https://huggingface.co/zxhezexin).
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- Weights will be downloaded automatically when you run the inference script for the first time.
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- Please be aware of the [license](LICENSE_WEIGHT) before using the weights.
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| Model | Training Data | Layers | Feat. Dim | Trip. Dim. | In. Res. | Link |
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| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
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| openlrm-obj-small-1.1 | Objaverse | 12 | 512 | 32 | 224 | [HF](https://huggingface.co/zxhezexin/openlrm-obj-small-1.1) |
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| openlrm-obj-base-1.1 | Objaverse | 12 | 768 | 48 | 336 | [HF](https://huggingface.co/zxhezexin/openlrm-obj-base-1.1) |
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| openlrm-obj-large-1.1 | Objaverse | 16 | 1024 | 80 | 448 | [HF](https://huggingface.co/zxhezexin/openlrm-obj-large-1.1) |
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| openlrm-mix-small-1.1 | Objaverse + MVImgNet | 12 | 512 | 32 | 224 | [HF](https://huggingface.co/zxhezexin/openlrm-mix-small-1.1) |
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| openlrm-mix-base-1.1 | Objaverse + MVImgNet | 12 | 768 | 48 | 336 | [HF](https://huggingface.co/zxhezexin/openlrm-mix-base-1.1) |
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| openlrm-mix-large-1.1 | Objaverse + MVImgNet | 16 | 1024 | 80 | 448 | [HF](https://huggingface.co/zxhezexin/openlrm-mix-large-1.1) |
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Model cards with additional details can be found in [model_card.md](model_card.md).
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### Prepare Images
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- We put some sample inputs under `assets/sample_input`, and you can quickly try them.
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- Prepare RGBA images or RGB images with white background (with some background removal tools, e.g., [Rembg](https://github.com/danielgatis/rembg), [Clipdrop](https://clipdrop.co)).
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### Inference
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- Run the inference script to get 3D assets.
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- You may specify which form of output to generate by setting the flags `EXPORT_VIDEO=true` and `EXPORT_MESH=true`.
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- Please set default `INFER_CONFIG` according to the model you want to use. E.g., `infer-b.yaml` for base models and `infer-s.yaml` for small models.
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- An example usage is as follows:
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```
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# Example usage
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EXPORT_VIDEO=true
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EXPORT_MESH=true
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INFER_CONFIG="./configs/infer-b.yaml"
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MODEL_NAME="zxhezexin/openlrm-mix-base-1.1"
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IMAGE_INPUT="./assets/sample_input/owl.png"
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python -m openlrm.launch infer.lrm --infer $INFER_CONFIG model_name=$MODEL_NAME image_input=$IMAGE_INPUT export_video=$EXPORT_VIDEO export_mesh=$EXPORT_MESH
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```
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## Training
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To be released soon.
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## Acknowledgement
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- We thank the authors of the [original paper](https://arxiv.org/abs/2311.04400) for their great work! Special thanks to Kai Zhang and Yicong Hong for assistance during the reproduction.
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- This project is supported by Shanghai AI Lab by providing the computing resources.
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- This project is advised by Ziwei Liu and Jiaya Jia.
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## Citation
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If you find this work useful for your research, please consider citing:
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```
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@article{hong2023lrm,
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title={Lrm: Large reconstruction model for single image to 3d},
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author={Hong, Yicong and Zhang, Kai and Gu, Jiuxiang and Bi, Sai and Zhou, Yang and Liu, Difan and Liu, Feng and Sunkavalli, Kalyan and Bui, Trung and Tan, Hao},
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journal={arXiv preprint arXiv:2311.04400},
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year={2023}
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}
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```
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```
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@misc{openlrm,
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title = {OpenLRM: Open-Source Large Reconstruction Models},
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author = {Zexin He and Tengfei Wang},
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year = {2023},
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howpublished = {\url{https://github.com/3DTopia/OpenLRM}},
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}
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```
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## License
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- OpenLRM as a whole is licensed under the [Apache License, Version 2.0](LICENSE), while certain components are covered by [NVIDIA's proprietary license](LICENSE_NVIDIA). Users are responsible for complying with the respective licensing terms of each component.
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- Model weights are licensed under the [Creative Commons Attribution-NonCommercial 4.0 International License](LICENSE_WEIGHT). They are provided for research purposes only, and CANNOT be used commercially.
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pinned: false
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license: apache-2.0
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---
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