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SignRefine: Adapting Foundational Video Models for Sign Language Generation

arXiv · AI, language, vision and robotics · article · Sep 8, 2026 · UTC

Sign language video generation demands precise hand and facial articulation, yet modern video diffusion models, trained predominantly on spoken-language video, produce artifacts that render signing unintelligible. We propose SignRefine, a sign language video generation model that produces comprehensible signing from 2D keypoint conditioning alone, generalizing across appearances and visual conditions. Our approach builds on a pretrained video diffusion transformer and introduces local adapters with spatial grounding to selectively refine hand and face regions, steering the strong base model's

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Evidence & attribution

First collected: 2026-09-20T20:22:01.598Z. This is not the publication date.