cs.AI updates on arXiv.org 07月03日
Geometry-aware 4D Video Generation for Robot Manipulation
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本文提出一种4D视频生成模型,通过交叉视角点云对齐,实现多视图3D一致性,增强机器人规划与交互能力,在模拟与真实数据集上表现优异。

arXiv:2507.01099v1 Announce Type: cross Abstract: Understanding and predicting the dynamics of the physical world can enhance a robot's ability to plan and interact effectively in complex environments. While recent video generation models have shown strong potential in modeling dynamic scenes, generating videos that are both temporally coherent and geometrically consistent across camera views remains a significant challenge. To address this, we propose a 4D video generation model that enforces multi-view 3D consistency of videos by supervising the model with cross-view pointmap alignment during training. This geometric supervision enables the model to learn a shared 3D representation of the scene, allowing it to predict future video sequences from novel viewpoints based solely on the given RGB-D observations, without requiring camera poses as inputs. Compared to existing baselines, our method produces more visually stable and spatially aligned predictions across multiple simulated and real-world robotic datasets. We further show that the predicted 4D videos can be used to recover robot end-effector trajectories using an off-the-shelf 6DoF pose tracker, supporting robust robot manipulation and generalization to novel camera viewpoints.

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4D视频生成 机器人交互 3D一致性 点云对齐 机器人操作
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