Touch-Augmented Gaussian Splatting for Enhanced 3D Scene Reconstruction

Fuente: arXiv
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Autori principali: Gao, Yuchen, Xu, Xiao, Steinbach, Eckehard, Lucani, Daniel E., Zhang, Qi
Natura: Preprint
Pubblicazione: 2025
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author Gao, Yuchen
Xu, Xiao
Steinbach, Eckehard
Lucani, Daniel E.
Zhang, Qi
author_facet Gao, Yuchen
Xu, Xiao
Steinbach, Eckehard
Lucani, Daniel E.
Zhang, Qi
contents This paper presents a multimodal framework that integrates touch signals (contact points and surface normals) into 3D Gaussian Splatting (3DGS). Our approach enhances scene reconstruction, particularly under challenging conditions like low lighting, limited camera viewpoints, and occlusions. Different from the visual-only method, the proposed approach incorporates spatially selective touch measurements to refine both the geometry and appearance of the 3D Gaussian representation. To guide the touch exploration, we introduce a two-stage sampling scheme that initially probes sparse regions and then concentrates on high-uncertainty boundaries identified from the reconstructed mesh. A geometric loss is proposed to ensure surface smoothness, resulting in improved geometry. Experimental results across diverse scenarios show consistent improvements in geometric accuracy. In the most challenging case with severe occlusion, the Chamfer Distance is reduced by over 15x, demonstrating the effectiveness of integrating touch cues into 3D Gaussian Splatting. Furthermore, our approach maintains a fully online pipeline, underscoring its feasibility in visually degraded environments.
format Preprint
id arxiv_https___arxiv_org_abs_2508_07717
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Touch-Augmented Gaussian Splatting for Enhanced 3D Scene Reconstruction
Gao, Yuchen
Xu, Xiao
Steinbach, Eckehard
Lucani, Daniel E.
Zhang, Qi
Signal Processing
This paper presents a multimodal framework that integrates touch signals (contact points and surface normals) into 3D Gaussian Splatting (3DGS). Our approach enhances scene reconstruction, particularly under challenging conditions like low lighting, limited camera viewpoints, and occlusions. Different from the visual-only method, the proposed approach incorporates spatially selective touch measurements to refine both the geometry and appearance of the 3D Gaussian representation. To guide the touch exploration, we introduce a two-stage sampling scheme that initially probes sparse regions and then concentrates on high-uncertainty boundaries identified from the reconstructed mesh. A geometric loss is proposed to ensure surface smoothness, resulting in improved geometry. Experimental results across diverse scenarios show consistent improvements in geometric accuracy. In the most challenging case with severe occlusion, the Chamfer Distance is reduced by over 15x, demonstrating the effectiveness of integrating touch cues into 3D Gaussian Splatting. Furthermore, our approach maintains a fully online pipeline, underscoring its feasibility in visually degraded environments.
title Touch-Augmented Gaussian Splatting for Enhanced 3D Scene Reconstruction
topic Signal Processing
url https://arxiv.org/abs/2508.07717