Traditional sign language teaching methods face challenges such as limited feedback and diverse learning scenarios. Although 2D resources lack real-time feedback, classroom teaching is constrained by a scarcity of teacher. Methods based on VR and AR have relatively primitive interaction feedback mechanisms. This study proposes an innovative teaching model that uses real-time monocular vision and mixed reality technology. First, we introduce an improved hand-posture reconstruction method to achieve sign language semantic retention and real-time feedback. Second, a ternary system evaluation algorithm is proposed for a comprehensive assessment, maintaining good consistency with experts in sign language. Furthermore, we use mixed reality technology to construct a scenario-based 3D sign language classroom and explore the user experience of scenario teaching. Overall, this paper presents a novel teaching method that provides an immersive learning experience, advanced posture reconstruction, and precise feedback, achieving positive feedback on user experience and learning effectiveness.

翻译：传统手语教学方法面临反馈受限与学习场景单一等挑战。二维资源虽具实时反馈功能，但课堂教学受师资短缺制约，而基于VR与AR的方法交互反馈机制较为原始。本研究提出一种创新教学模式，融合实时单目视觉与混合现实技术。首先引入改进的手部姿态重建方法，实现手语语义保留与实时反馈；其次提出三元系统评估算法进行综合评价，与手语专家评分保持良好一致性；进而利用混合现实技术构建场景化三维手语课堂，探索情景教学的用户体验。总体而言，本文呈现的新型教学方法提供沉浸式学习体验、先进姿态重建及精准反馈，在用户体验与学习效果方面获得积极反馈。