nas3r
Research code for a self-supervised method that reconstructs 3D scenes from images without camera poses or prior 3D data. It accompanies a CVPR 2026 paper.
Share on XLicense: MIT
Overview
NAS3R is research code from a CVPR 2026 paper on reconstructing 3D scenes from ordinary images. It is a self-supervised, feed-forward framework that learns 3D geometry and camera parameters together, without ground-truth annotations or pretrained priors. The repository provides installation steps, checkpoints hosted on Hugging Face, and instructions for datasets, training and evaluation in Python with PyTorch.
Key features
- Learns 3D geometry and camera parameters jointly
- Needs no ground-truth labels or pretrained priors
- Checkpoints for two-view and multi-view models on Hugging Face
- Optional camera intrinsics input for some checkpoints
- VGGT-based and MASt3R-style architecture variants
Best for
Researchers working on pose-free 3D reconstruction or novel view synthesis who want to reproduce or build on the paper. It is research code that expects a CUDA PyTorch setup.
- Upstream
- ranrhuang/NAS3R
- Fork on GitHub
- Guo-astro/nas3r
- Upstream stars
- 121
- Category
- Finance, data and research
- Language
- Python
- License
- MIT
- Forked
- 2026-05-03
- Sync status
- In syncLast synced 2026-09-29
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