Human-Object Interaction via Automatically Designed VLM-Guided Motion Policy

• URL: http://arxiv.org/abs/2503.18349v2
• Date: Wed, 28 May 2025 08:08:58 GMT
• Title: Human-Object Interaction via Automatically Designed VLM-Guided Motion Policy
• Authors: Zekai Deng, Ye Shi, Kaiyang Ji, Lan Xu, Shaoli Huang, Jingya Wang,
• Abstract summary: We introduce the first unified physics-based HO framework that leverages Vision-Language Models (VLMs)<n>We introduce VLM-Guided Relative Movement Dynamics (RMD), a fine-temporal bipartite motion representation that automatically constructs goal states and reward functions for reinforcement learning.<n>To support our methodology, we present Interplay, a novel dataset with thousands of long-horizon static and dynamic interaction plans.
• Score: 30.43930233035367
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Human-object interaction (HOI) synthesis is crucial for applications in animation, simulation, and robotics. However, existing approaches either rely on expensive motion capture data or require manual reward engineering, limiting their scalability and generalizability. In this work, we introduce the first unified physics-based HOI framework that leverages Vision-Language Models (VLMs) to enable long-horizon interactions with diverse object types, including static, dynamic, and articulated objects. We introduce VLM-Guided Relative Movement Dynamics (RMD), a fine-grained spatio-temporal bipartite representation that automatically constructs goal states and reward functions for reinforcement learning. By encoding structured relationships between human and object parts, RMD enables VLMs to generate semantically grounded, interaction-aware motion guidance without manual reward tuning. To support our methodology, we present Interplay, a novel dataset with thousands of long-horizon static and dynamic interaction plans. Extensive experiments demonstrate that our framework outperforms existing methods in synthesizing natural, human-like motions across both simple single-task and complex multi-task scenarios. For more details, please refer to our project webpage: https://vlm-rmd.github.io/.

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