arXiv Computer Vision By Xinmu Wang, Fumi Honda, Xiang Gao, Xianfeng Gu, Xiyun Song, Heather Yu

TalkFlow: Structured Latent Flow Matching for Speech Driven Holistic Motion Generation

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TalkFlow introduces a structured latent flow framework for generating holistic co-speech motion, learning separate continuous latent representations for upper-body, lower-body, and facial expressions. The model incorporates lightweight cross-stream interactions to preserve part-specific dynamics and maintain coordination across motion components. Experiments on the BEAT2 dataset show improved facial expression accuracy, body gesture quality, and speech-motion synchronization compared to state-of-the-art methods.

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