Add project information and citation

README.md

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+---
+language:
+- en
+tags:
+- computer-vision
+- 3d-reconstruction
+- gaussian-splatting
+- novel-view-synthesis
+- camera-pose-estimation
+- pose-free
+- feed-forward
+---
+
+# NoDrift3R: Raymap-Guided Coupling for Drift-Robust Unposed Feed-Forward 3D Reconstruction
+
+[**Project Page**](https://xiangyu1sun.github.io/NoDrift3R-project-page/) | [**Paper**](https://arxiv.org/abs/2607.07168) | [**Code**](https://github.com/HorizonRobotics/NoDrift3R)
+
+NoDrift3R is an ECCV 2026 method for drift-robust, pose-free feed-forward 3D Gaussian Splatting reconstruction. It targets cumulative camera-pose drift in long, unposed image sequences by explicitly coupling geometry and appearance. Gaussian centers are anchored to raymap-induced geometry, while RGB reconstruction, raymap consistency, and camera regularization are optimized jointly to improve rendering, geometry, and pose estimation together.
+
+## Highlights
+
+- **Drift-robust long-sequence reconstruction:** directly addresses cumulative camera-pose errors that degrade geometry and rendering quality.
+- **Raymap-Guided Coupling:** connects Gaussian geometry with raymap predictions to reduce pose-geometry ambiguity.
+- **Geometry-appearance synergy:** jointly optimizes RGB reconstruction, raymap consistency, and camera regularization in a unified objective.
+- **Dual-Frequency Viewpoint Scheduling:** combines easy-to-hard interval expansion with replay of short-interval image pairs for stable training across temporal ranges.
+- **Pose-free feed-forward inference:** reconstructs scenes and estimates camera poses without requiring input camera poses.
+
+## Checkpoints
+
+This repository contains the following checkpoints:
+
+- `dl3dv_giant_2_8_H20.ckpt`
+- `dl3dv_large_4_8_5090.ckpt`
+- `mix_dataset_giant_4_8_H20.ckpt`
+- `mix_dataset_large_8_8_5090.ckpt`
+
+Please follow the [GitHub repository](https://github.com/HorizonRobotics/NoDrift3R) and [project page](https://xiangyu1sun.github.io/NoDrift3R-project-page/) for code, configuration, dataset, and usage updates.
+
+## Citation
+
+If you find NoDrift3R useful in your research, please cite:
+
+```bibtex
+@misc{sun2026nodrift3rraymapguidedcouplingdriftrobust,
+  title         = {NoDrift3R: Raymap-Guided Coupling for Drift-Robust Unposed Feed-Forward 3D Reconstruction},
+  author        = {Xiangyu Sun and Liu Liu and Seungkwon Yang and Jingbing Han and Seungtae Nam and Zhizhong Su and Eunbyung Park},
+  year          = {2026},
+  eprint        = {2607.07168},
+  archivePrefix = {arXiv},
+  primaryClass  = {cs.CV},
+  url           = {https://arxiv.org/abs/2607.07168}
+}
+```