HoloGest: Decoupled Diffusion and Motion Priors for Generating Holisticly Expressive Co-speech Gestures

• URL: http://arxiv.org/abs/2503.13229v1
• Date: Mon, 17 Mar 2025 14:42:31 GMT
• Title: HoloGest: Decoupled Diffusion and Motion Priors for Generating Holisticly Expressive Co-speech Gestures
• Authors: Yongkang Cheng, Shaoli Huang,
• Abstract summary: HoleGest is a novel neural network framework for automatic generation of high-quality, expressive co-speech gestures.<n>Our system learns a robust prior with low audio dependency and high motion reliance, enabling stable global motion and detailed finger movements.<n>Our model achieves a level of realism close to the ground truth, providing an immersive user experience.
• Score: 8.50717565369252
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Animating virtual characters with holistic co-speech gestures is a challenging but critical task. Previous systems have primarily focused on the weak correlation between audio and gestures, leading to physically unnatural outcomes that degrade the user experience. To address this problem, we introduce HoleGest, a novel neural network framework based on decoupled diffusion and motion priors for the automatic generation of high-quality, expressive co-speech gestures. Our system leverages large-scale human motion datasets to learn a robust prior with low audio dependency and high motion reliance, enabling stable global motion and detailed finger movements. To improve the generation efficiency of diffusion-based models, we integrate implicit joint constraints with explicit geometric and conditional constraints, capturing complex motion distributions between large strides. This integration significantly enhances generation speed while maintaining high-quality motion. Furthermore, we design a shared embedding space for gesture-transcription text alignment, enabling the generation of semantically correct gesture actions. Extensive experiments and user feedback demonstrate the effectiveness and potential applications of our model, with our method achieving a level of realism close to the ground truth, providing an immersive user experience. Our code, model, and demo are are available at https://cyk990422.github.io/HoloGest.github.io/.

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