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arXiv · 2510.02722

MoGIC: Boosting Motion Generation via Intention Understanding and Visual Context

Junyu Shi·Yong Sun·Zhiyuan Zhang·Lijiang Liu·Zhengjie Zhang·Yuxin He·Qiang Nie
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Abstract

Existing text-driven motion generation methods often treat synthesis as a bidirectional mapping between language and motion, but remain limited in capturing the causal logic of action execution and the human intentions that drive behavior. The absence of visual grounding further restricts precision and personalization, as language alone cannot specify fine-grained spatiotemporal details. We propose MoGIC, a unified framework that integrates intention modeling and visual priors into multimodal motion synthesis. By jointly optimizing multimodal-conditioned motion generation and intention prediction, MoGIC uncovers latent human goals, leverages visual priors to enhance generation, and exhibits versatile multimodal generative capability. We further introduce a mixture-of-attention mechanism with adaptive scope to enable effective local alignment between conditional tokens and motion subsequences. To support this paradigm, we curate Mo440H, a 440-hour benchmark from 21 high-quality motion datasets. Experiments show that after finetuning, MoGIC reduces FID by 38.6\% on HumanML3D and 34.6\% on Mo440H, surpasses LLM-based methods in motion captioning with a lightweight text head, and further enables intention prediction and vision-conditioned generation, advancing controllable motion synthesis and intention understanding. The code is available at https://github.com/JunyuShi02/MoGIC

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Junyu Shi, Yong Sun, Zhiyuan Zhang, Lijiang Liu, Zhengjie Zhang, Yuxin He, Qiang Nie. 2025-10-03. MoGIC: Boosting Motion Generation via Intention Understanding and Visual Context. https://arxiv.org/abs/2510.02722

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