FlexMotion: Lightweight, Physics-Aware, and Controllable Human Motion Generation

• URL: http://arxiv.org/abs/2501.16778v1
• Date: Tue, 28 Jan 2025 08:02:21 GMT
• Title: FlexMotion: Lightweight, Physics-Aware, and Controllable Human Motion Generation
• Authors: Arvin Tashakori, Arash Tashakori, Gongbo Yang, Z. Jane Wang, Peyman Servati,
• Abstract summary: We propose a novel framework that leverages a computationally lightweight diffusion model operating in the latent space. FlexMotion employs a multimodal pre-trained Transformer encoder-decoder, integrating joint locations, contact forces, joint actuations and muscle activations. We evaluate FlexMotion on extended datasets and demonstrate its superior performance in terms of realism, physical plausibility, and controllability.
• Score: 12.60677181866807
• License:
• Abstract: Lightweight, controllable, and physically plausible human motion synthesis is crucial for animation, virtual reality, robotics, and human-computer interaction applications. Existing methods often compromise between computational efficiency, physical realism, or spatial controllability. We propose FlexMotion, a novel framework that leverages a computationally lightweight diffusion model operating in the latent space, eliminating the need for physics simulators and enabling fast and efficient training. FlexMotion employs a multimodal pre-trained Transformer encoder-decoder, integrating joint locations, contact forces, joint actuations and muscle activations to ensure the physical plausibility of the generated motions. FlexMotion also introduces a plug-and-play module, which adds spatial controllability over a range of motion parameters (e.g., joint locations, joint actuations, contact forces, and muscle activations). Our framework achieves realistic motion generation with improved efficiency and control, setting a new benchmark for human motion synthesis. We evaluate FlexMotion on extended datasets and demonstrate its superior performance in terms of realism, physical plausibility, and controllability.

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