Pay Attention and Move Better: Harnessing Attention for Interactive Motion Generation and Training-free Editing

• URL: http://arxiv.org/abs/2410.18977v2
• Date: Wed, 22 Jan 2025 15:32:45 GMT
• Title: Pay Attention and Move Better: Harnessing Attention for Interactive Motion Generation and Training-free Editing
• Authors: Ling-Hao Chen, Shunlin Lu, Wenxun Dai, Zhiyang Dou, Xuan Ju, Jingbo Wang, Taku Komura, Lei Zhang,
• Abstract summary: We develop a versatile set of simple yet effective motion editing methods via manipulating attention maps. Our method enjoys good generation and editing ability with good explainability.
• Score: 23.70162749652725
• License:
• Abstract: This research delves into the problem of interactive editing of human motion generation. Previous motion diffusion models lack explicit modeling of the word-level text-motion correspondence and good explainability, hence restricting their fine-grained editing ability. To address this issue, we propose an attention-based motion diffusion model, namely MotionCLR, with CLeaR modeling of attention mechanisms. Technically, MotionCLR models the in-modality and cross-modality interactions with self-attention and cross-attention, respectively. More specifically, the self-attention mechanism aims to measure the sequential similarity between frames and impacts the order of motion features. By contrast, the cross-attention mechanism works to find the fine-grained word-sequence correspondence and activate the corresponding timesteps in the motion sequence. Based on these key properties, we develop a versatile set of simple yet effective motion editing methods via manipulating attention maps, such as motion (de-)emphasizing, in-place motion replacement, and example-based motion generation, etc. For further verification of the explainability of the attention mechanism, we additionally explore the potential of action-counting and grounded motion generation ability via attention maps. Our experimental results show that our method enjoys good generation and editing ability with good explainability.

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