用3D腭穹窿模型估算舌-腭接触面积，支持动态发音可视化。
The 2D+ Dynamic Articulatory Model DYNARTmo: Tongue-Palate Contact Area Estimation
- 在2D动态发音模型中加入3D腭穹窿结构，建模冠状面侧向曲率。
- 通过半椭圆和余弦轮廓计算舌-腭接触点，生成类电腭图可视化结果。
- 可同步显示矢状、声门、腭面三视角，适合语音教学与康复训练。
本文在二维动态发音模型DYNARTmo基础上，引入腭穹窿的内部三维表示，从矢状面舌轮廓估算舌-腭接触区域。采用半椭圆与余弦轮廓两种穹窿几何形式，建模冠状面侧向曲率，对每个前后位置解析计算侧向接触点，实现2D+框架内的类电腭图可视化。增强模型支持静态与动态（动画）发音的矢状、声门及腭面三视图同步显示，适用于语音科学教育与语音治疗。未来工作包括增加面部（唇部）视角，以及实现发音到声学的合成，以定量评估模型真实性。
原文摘要 · Abstract (English)
This paper describes an extension of the two-dimensional dynamic articulatory model DYNARTmo by integrating an internal three-dimensional representation of the palatal dome to estimate tongue-palate contact areas from midsagittal tongue contours. Two alternative dome geometries - a half-ellipse and a cosine based profile - are implemented to model lateral curvature in the coronal plane. Using these geometries, lateral contact points are analytically computed for each anterior-posterior position, enabling the generation of electropalatography-like visualizations within the 2D+ framework. The enhanced model supports three synchronized views (sagittal, glottal, and palatal) for static and dynamic (animated) articulation displays, suitable for speech science education and speech therapy. Future work includes adding a facial (lip) view and implementing articulatory-to-acoustic synthesis to quantitatively evaluate model realism.
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