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SplatCtrl: Perception-Action Coupling via Gaussian Scene Representations and Reactive Robot Control

SplatCtrl is a unified framework for real-time scene reconstruction and reactive robot motion generation, enabling collision-free robotic arm control in unstructured and dynamic environments. It builds on 3D Gaussian Splatting with hybrid voxel filtering and dynamic Gaussian relocation, derives continuous signed distance functions from isotropic Gaussians, and integrates them into control barrier functions. Experiments validate its effectiveness in simulation, on physical robots, and in shared human-robot workspaces.

SourcearXiv RoboticsAuthor: Siddarth Jain, Ho Jin Choi

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[Submitted on 9 Jul 2026]

Title:SplatCtrl: Perception-Action Coupling via Gaussian Scene Representations and Reactive Robot Control

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Abstract:Robotic manipulators excel in structured environments but face substantial challenges in unstructured and dynamic settings. This paper presents SplatCtrl, a unified framework for real-time scene reconstruction and reactive robot motion generation to enable collision-free robotic arm control in previously unseen and continuously changing environments. Building on 3D Gaussian Splatting (3D-GS), we introduce a hybrid voxel-based filtering and dynamic Gaussian relocation strategy that supports efficient scene reconstruction from RGB-D streams while accommodating environmental changes. For safe and reactive control, we further propose a method for deriving continuous signed distance functions from isotropic Gaussians, providing stable and differentiable collision probability estimates that bridge classical distance fields with the modern implicit representation. These continuous distance metrics are incorporated into control barrier functions, resulting in a unified perception-action coupling framework that supports smooth and reliable real-time motion generation in response to scene changes. Experimental validation in simulation, on physical robot, and within shared human-robot workspace demonstrates the framework's effectiveness, achieving integrated scene reconstruction and reactive control in uncertain, and dynamic environments.

Comments: Published in 2026 International Conference on Robotics and Automation (ICRA). 8 pages, 8 figures

Subjects:

Robotics (cs.RO); Computer Vision and Pattern Recognition (cs.CV)

Cite as: arXiv:2607.08948 [cs.RO]

(or arXiv:2607.08948v1 [cs.RO] for this version)

https://doi.org/10.48550/arXiv.2607.08948

arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Siddarth Jain [view email] [v1] Thu, 9 Jul 2026 21:18:39 UTC (7,668 KB)

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