title4D Human-Scene Reconstruction from Low-Overlap Captures
authorsMinhyuk Hwang, Sangmin Kim, Seunguk Do, Daneul Kim, Jaesik Park
date2026-07-10
venuearXiv (preprint, not peer reviewed)
idarXiv:2607.09125
affiliationSeoul National University
upvotes50 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf
abstractExisting volumetric capture of dynamic human performance achieves high fidelity with dense camera arrays. However, in real-world scenarios, only a handful of low-overlap cameras are available, which degrades the output quality and leaves large areas unobserved. Recent 4D reconstruction methods have focused on low-overlap settings, yet they still produce noticeable artifacts in under-observed regions. Video diffusion models have emerged as another option, but they show geometrically inconsistent results for humans. To address these limitations, we propose StudioRecon, a pipeline that reconstructs 4D human scenes from sparse, low-overlap cameras by decoupling background and humans. We densify background supervision by synthesizing hundreds of camera-controlled novel views with a video diffusion model. We also robustly initialize deformable Gaussian humans with cross-view identity association and triangulated multi-view keypoint fitting. Finally, our recursive enhancement module with motion-adaptive consistency injection harmonizes the composed output, thereby further avoiding remaining artifacts. We achieve state-of-the-art novel view synthesis across four real-world datasets and demonstrate applications such as novel trajectory rendering and human replacement.

cite

@misc{hwang2026d,
  title={4D Human-Scene Reconstruction from Low-Overlap Captures},
  author={Minhyuk Hwang and Sangmin Kim and Seunguk Do and Daneul Kim and Jaesik Park},
  year={2026},
  eprint={2607.09125},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2607.09125}
}