ODHSR: Online Dense 3D Reconstruction of Humans and Scenes from Monocular Videos

Zetong Zhang; Manuel Kaufmann; Lixin Xue; Jie Song; Martin R. Oswald

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arXiv · 2504.13167

ODHSR: Online Dense 3D Reconstruction of Humans and Scenes from Monocular Videos

Zetong Zhang·Manuel Kaufmann·Lixin Xue·Jie Song·Martin R. Oswald

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Abstract

Creating a photorealistic scene and human reconstruction from a single monocular in-the-wild video figures prominently in the perception of a human-centric 3D world. Recent neural rendering advances have enabled holistic human-scene reconstruction but require pre-calibrated camera and human poses, and days of training time. In this work, we introduce a novel unified framework that simultaneously performs camera tracking, human pose estimation and human-scene reconstruction in an online fashion. 3D Gaussian Splatting is utilized to learn Gaussian primitives for humans and scenes efficiently, and reconstruction-based camera tracking and human pose estimation modules are designed to enable holistic understanding and effective disentanglement of pose and appearance. Specifically, we design a human deformation module to reconstruct the details and enhance generalizability to out-of-distribution poses faithfully. Aiming to learn the spatial correlation between human and scene accurately, we introduce occlusion-aware human silhouette rendering and monocular geometric priors, which further improve reconstruction quality. Experiments on the EMDB and NeuMan datasets demonstrate superior or on-par performance with existing methods in camera tracking, human pose estimation, novel view synthesis and runtime. Our project page is at https://eth-ait.github.io/ODHSR.

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BibTeX RIS

Zetong Zhang, Manuel Kaufmann, Lixin Xue, Jie Song, Martin R. Oswald. 2025-04-18. ODHSR: Online Dense 3D Reconstruction of Humans and Scenes from Monocular Videos. https://arxiv.org/abs/2504.13167

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