Semantic Foam: Unifying Spatial and Semantic Scene Decomposition

Fuente: arXiv
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Auteurs principaux: Sharafeldin, Amr, Govindarajan, Shrisudhan, Walker, Thomas, Mikaeili, Aryan, Rebain, Daniel, Yi, Kwang Moo, Tagliasacchi, Andrea
Format: Preprint
Publié: 2026
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author Sharafeldin, Amr
Govindarajan, Shrisudhan
Walker, Thomas
Mikaeili, Aryan
Rebain, Daniel
Yi, Kwang Moo
Tagliasacchi, Andrea
author_facet Sharafeldin, Amr
Govindarajan, Shrisudhan
Walker, Thomas
Mikaeili, Aryan
Rebain, Daniel
Yi, Kwang Moo
Tagliasacchi, Andrea
contents Modern scene reconstruction methods, such as 3D Gaussian Splatting, deliver photo-realistic novel view synthesis at real-time speeds, yet their adoption in interactive graphics applications has been limited. A major bottleneck is the difficulty of interacting with these representations compared to traditional, human-authored 3D assets. While previous research has attempted to impose semantic decomposition on these models, significant challenges remain regarding segmentation quality and consistency. To address this, we introduce Semantic Foam, extending the recently proposed Radiant Foam representations to semantic decomposition tasks. Our approach integrates the natural spatial volumetric decomposition of Radiant Foam's Voronoi mesh with an explicit semantic feature field parameterized at the cell level. This explicit structure enables direct spatial regularization, which prevents artifacts caused by occlusion or inconsistent supervision across views - common pitfalls for other point-based representations. Experimental results show that our method achieves comparable or superior object-level segmentation performance compared to state-of-the-art methods like Gaussian Grouping and SAGA.
format Preprint
id arxiv_https___arxiv_org_abs_2604_26262
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Semantic Foam: Unifying Spatial and Semantic Scene Decomposition
Sharafeldin, Amr
Govindarajan, Shrisudhan
Walker, Thomas
Mikaeili, Aryan
Rebain, Daniel
Yi, Kwang Moo
Tagliasacchi, Andrea
Computer Vision and Pattern Recognition
Modern scene reconstruction methods, such as 3D Gaussian Splatting, deliver photo-realistic novel view synthesis at real-time speeds, yet their adoption in interactive graphics applications has been limited. A major bottleneck is the difficulty of interacting with these representations compared to traditional, human-authored 3D assets. While previous research has attempted to impose semantic decomposition on these models, significant challenges remain regarding segmentation quality and consistency. To address this, we introduce Semantic Foam, extending the recently proposed Radiant Foam representations to semantic decomposition tasks. Our approach integrates the natural spatial volumetric decomposition of Radiant Foam's Voronoi mesh with an explicit semantic feature field parameterized at the cell level. This explicit structure enables direct spatial regularization, which prevents artifacts caused by occlusion or inconsistent supervision across views - common pitfalls for other point-based representations. Experimental results show that our method achieves comparable or superior object-level segmentation performance compared to state-of-the-art methods like Gaussian Grouping and SAGA.
title Semantic Foam: Unifying Spatial and Semantic Scene Decomposition
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.26262