GENA3D: Generative Amodal 3D Modeling by Bridging 2D Priors and 3D Coherence

<div align="center"> <a href="https://colezwhy.github.io/" target="_blank">Junwei Zhou</a>, <a href="https://yuwingtai.github.io/" target="_blank">Yu-Wing Tai</a> </div> <div align="center"> Dartmouth College </div>

TL;DR: <em>GENA3D bridges 2D amodal completion and 3D generative modeling to achieve amodal 3D objects generation from sparse and paritial-occluded observations.</em>

<p align="center"> <a href="https://colezwhy.github.io/gena3d/"> <img src="https://img.shields.io/badge/Project-Website-green"> </a> <a href="https://arxiv.org/abs/2511.21945"> <img src="https://img.shields.io/badge/arXiv-2511.21945-b31b1b.svg"> </a> <a href="#"> <img src="https://visitor-badge.laobi.icu/badge?page_id=Colezwhy.GENA3D" alt="Visitors"> </a> </p>

Official implementation for paper 'GENA3D: Generative Amodal 3D Modeling by Bridging 2D Priors and 3D Coherence'.

Intergrating 2D amodal completion prior and 3D generative modeling ability in the latent 3D space to achieve amodal 3D objects generation from sparse and partial-occluded views, under various scenarios, including single object-level, in-the-wild and in-the-scene.

https://github.com/user-attachments/assets/6f4b36e1-c50d-436a-9241-bd0e700c809e

Updates and TODOs

• ✔️ Update@12/04/2025: initialize the project page.
• 🔲 TODO: The code will be released once accepted. Please stay tuned!

Citation

Here is the bibtex reference. If you find our work interesting or useful, please give us a :star: or cite our paper.

@misc{zhou2026gena3dgenerativeamodal3d,
      title={GENA3D: Generative Amodal 3D Modeling by Bridging 2D Priors and 3D Coherence}, 
      author={Junwei Zhou and Yu-Wing Tai},
      year={2026},
      eprint={2511.21945},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2511.21945}, 
}