arXiv:2506.12184cs.ROcs.CV2025-06中稿 · the 2025 RSS Works…被引 1

用可分解结构的高斯点云表示关节物体,支持复杂机械臂建模。

SPLATART: Articulated Gaussian Splatting with Estimated Object Structure

  • 将部件分离与关节估计解耦,分步构建关节物体模型
  • 在巴黎合成数据集上成功重建带连接关系的物体结构
  • 适用于机械臂等深层运动链结构,适合机器人感知任务

关节物体的建模仍是机器人领域的难题。剪刀、夹具或柜子等物体不仅需捕捉几何与颜色信息,还需表达部件分割、连接关系及关节参数。随着自由度增加,学习这些表示变得更加困难。例如机器人手臂可能有七个或更多自由度,其运动链深度远超常见研究对象(如工具、抽屉)。为此,我们提出SPLATART——一种从带姿态图像中学习关节物体高斯点云表示的流程,其中部分图像包含图像空间的部件分割标注。SPLATART将部件分离与关节估计任务解耦,支持对具有更深层运动链结构的物体进行后处理关节估计。本文展示了该方法在合成巴黎数据集物体上的结果,并在真实物体上进行了少量分割监督下的定性验证。此外,还应用于串联机械臂,证明其在深层运动链结构中的适用性。

原文摘要 · Abstract (English)

Representing articulated objects remains a difficult problem within the field of robotics. Objects such as pliers, clamps, or cabinets require representations that capture not only geometry and color information, but also part seperation, connectivity, and joint parametrization. Furthermore, learning these representations becomes even more difficult with each additional degree of freedom. Complex articulated objects such as robot arms may have seven or more degrees of freedom, and the depth of their kinematic tree may be notably greater than the tools, drawers, and cabinets that are the typical subjects of articulated object research. To address these concerns, we introduce SPLATART - a pipeline for learning Gaussian splat representations of articulated objects from posed images, of which a subset contains image space part segmentations. SPLATART disentangles the part separation task from the articulation estimation task, allowing for post-facto determination of joint estimation and representation of articulated objects with deeper kinematic trees than previously exhibited. In this work, we present data on the SPLATART pipeline as applied to the syntheic Paris dataset objects, and qualitative results on a real-world object under spare segmentation supervision. We additionally present on articulated serial chain manipulators to demonstrate usage on deeper kinematic tree structures.

3D建模关节物体高斯溅射机器人感知

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