Precise finger articulation in sign language video generation
Abstract
Sign language relies on coordinated facial expressions and hand gestures, posing challenges for generative video systems that typically emphasize facial or body realism alone. This paper presents a virtual sign language video generation framework based on Stable Video Diffusion (SVD) that produces full-length signing animations from a single portrait. Temporal consistency is improved via frame refinement, while SignPose and PoseNet enhance motion accuracy and detail. A hand-region enhancement strategy further improves finger reconstruction. Experimental results demonstrate clearer gestures, more natural facial expressions, and realistic, comprehensible virtual sign language videos.
Fields of Study & Subjects
Hand Gesture Recognition Systems
Human Motion and Animation
Face recognition and analysis
Publication details
- Journal / source
- Enterprise Information Systems
- Publisher
- Informa UK Limited
- Volume
- 20
- Issue
- 5-6
- Publication date
- 18 February 2026
- Language
- EN