GUESS:GradUally Enriching SyntheSis for Text-Driven Human Motion Generation

• URL: http://arxiv.org/abs/2401.02142v2
• Date: Sat, 6 Jan 2024 03:17:55 GMT
• Title: GUESS:GradUally Enriching SyntheSis for Text-Driven Human Motion Generation
• Authors: Xuehao Gao, Yang Yang, Zhenyu Xie, Shaoyi Du, Zhongqian Sun, and Yang Wu
• Abstract summary: We propose a novel cascaded diffusion-based generative framework for text-driven human motion synthesis. The framework exploits a strategy named GradUally Enriching SyntheSis (GUESS) as its abbreviation. We show that GUESS outperforms existing state-of-the-art methods by large margins in terms of accuracy, realisticness, and diversity.
• Score: 23.435588151215594
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In this paper, we propose a novel cascaded diffusion-based generative framework for text-driven human motion synthesis, which exploits a strategy named GradUally Enriching SyntheSis (GUESS as its abbreviation). The strategy sets up generation objectives by grouping body joints of detailed skeletons in close semantic proximity together and then replacing each of such joint group with a single body-part node. Such an operation recursively abstracts a human pose to coarser and coarser skeletons at multiple granularity levels. With gradually increasing the abstraction level, human motion becomes more and more concise and stable, significantly benefiting the cross-modal motion synthesis task. The whole text-driven human motion synthesis problem is then divided into multiple abstraction levels and solved with a multi-stage generation framework with a cascaded latent diffusion model: an initial generator first generates the coarsest human motion guess from a given text description; then, a series of successive generators gradually enrich the motion details based on the textual description and the previous synthesized results. Notably, we further integrate GUESS with the proposed dynamic multi-condition fusion mechanism to dynamically balance the cooperative effects of the given textual condition and synthesized coarse motion prompt in different generation stages. Extensive experiments on large-scale datasets verify that GUESS outperforms existing state-of-the-art methods by large margins in terms of accuracy, realisticness, and diversity. Code is available at https://github.com/Xuehao-Gao/GUESS.

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