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Xiangyu Sun

2 papers indexed

arxivcs.CV2026-07-18

Scene-SAM3D: Multi-View Scene Asset Generation Without Fine-Tuning

Yuqi Zhang, Yadan Luo, Xiangyu Sun, Fengyi Zhang, Zi Huang, Xin Tan

High-quality 3D scene assets are critical for embodied applications such as robotic manipulation, navigation, and simulation. Despite their strong object priors, recent single-image 3D generation models such as SAM3D remain insufficient for real-world scenes, where severe occlusi…

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arxivcs.CV2026-07-08

NoDrift3R: Raymap-Guided Coupling for Drift-Robust Unposed Feed-Forward 3D Reconstruction

Xiangyu Sun, Liu Liu, Seungkwon Yang, Jingbing Han, Seungtae Nam, Zhizhong Su, et al.

Pose-Free Feed-forward 3D Gaussian Splatting (3DGS) has recently emerged as a powerful paradigm for fast scene reconstruction. However, its performance degrades significantly in long image sequences due to cumulative camera pose estimation drift, which propagates errors into geom…

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