Reproduce “CoCo4D: Comprehensive and Complex 4D Scene Generation” on OpenResearch
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About this paper
Junwei Zhou, Xueting Li, Lu Qi, Ming-Hsuan Yang
CoCo4D introduces a framework for generating comprehensive and complex 4D scenes featuring dynamic foregrounds and evolving backgrounds. This method reduces generation time to approximately 1 hour, outperforming prior score distillation methods by up to 23x while achieving superior motion quality and scene complexity as validated by VBench metrics and user studies.
Key insights
- Foreground objects exhibit rapid, articulated motion, while backgrounds undergo gradual changes, necessitating specialized pipelines for each within a 4D scene.
- An iterative "inpaint-project-optimize" scheme, termed progressive outpaint, can effectively expand and animate 4D background scenes from limited initial information.
- Leveraging 3D Gaussian Splatting combined with deformation networks and multi-view diffusion guidance enables efficient and high-quality 4D content generation for both foregrounds and backgrounds.
Summary by alphaXiv.
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