ScrewSplat: An End-to-End Method for Articulated Object Recognition

Fuente: arXiv
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Autori principali: Kim, Seungyeon, Ha, Junsu, Kim, Young Hun, Lee, Yonghyeon, Park, Frank C.
Natura: Preprint
Pubblicazione: 2025
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author Kim, Seungyeon
Ha, Junsu
Kim, Young Hun
Lee, Yonghyeon
Park, Frank C.
author_facet Kim, Seungyeon
Ha, Junsu
Kim, Young Hun
Lee, Yonghyeon
Park, Frank C.
contents Articulated object recognition -- the task of identifying both the geometry and kinematic joints of objects with movable parts -- is essential for enabling robots to interact with everyday objects such as doors and laptops. However, existing approaches often rely on strong assumptions, such as a known number of articulated parts; require additional inputs, such as depth images; or involve complex intermediate steps that can introduce potential errors -- limiting their practicality in real-world settings. In this paper, we introduce ScrewSplat, a simple end-to-end method that operates solely on RGB observations. Our approach begins by randomly initializing screw axes, which are then iteratively optimized to recover the object's underlying kinematic structure. By integrating with Gaussian Splatting, we simultaneously reconstruct the 3D geometry and segment the object into rigid, movable parts. We demonstrate that our method achieves state-of-the-art recognition accuracy across a diverse set of articulated objects, and further enables zero-shot, text-guided manipulation using the recovered kinematic model. See the project website at: https://screwsplat.github.io.
format Preprint
id arxiv_https___arxiv_org_abs_2508_02146
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle ScrewSplat: An End-to-End Method for Articulated Object Recognition
Kim, Seungyeon
Ha, Junsu
Kim, Young Hun
Lee, Yonghyeon
Park, Frank C.
Robotics
Computer Vision and Pattern Recognition
Articulated object recognition -- the task of identifying both the geometry and kinematic joints of objects with movable parts -- is essential for enabling robots to interact with everyday objects such as doors and laptops. However, existing approaches often rely on strong assumptions, such as a known number of articulated parts; require additional inputs, such as depth images; or involve complex intermediate steps that can introduce potential errors -- limiting their practicality in real-world settings. In this paper, we introduce ScrewSplat, a simple end-to-end method that operates solely on RGB observations. Our approach begins by randomly initializing screw axes, which are then iteratively optimized to recover the object's underlying kinematic structure. By integrating with Gaussian Splatting, we simultaneously reconstruct the 3D geometry and segment the object into rigid, movable parts. We demonstrate that our method achieves state-of-the-art recognition accuracy across a diverse set of articulated objects, and further enables zero-shot, text-guided manipulation using the recovered kinematic model. See the project website at: https://screwsplat.github.io.
title ScrewSplat: An End-to-End Method for Articulated Object Recognition
topic Robotics
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2508.02146