【摘要】 研究中文发音过程中舌头运动的3D可视化问题.根据核磁共振数据构建舌头精细的3D模型,在此基础上,提取舌背表面处3个点的EMA数据为驱动源,利用弹簧网技术真实再现中文发音过程中的舌头运动.为了验证文中建模和舌头运动合成方法的有效性,使用计算机图形学的方法模拟舌头运动的细节效果,并对比其与由语言学家亲自拍摄的"普通话发音器官动作特征"的X光影像.实验表明,文中方法实现的3D舌头运动符合真实的舌头运动情况,拥有广泛的应用前景.更多还原

【Abstract】 Problem of 3D visualization of tongue movements in pronunciation is studied. Firstly,a precise 3D tongue model according to magnetic resonance imaging scan data is built. Based on the 3D tongue model,the electromagnetic articulometer( EMA) data collected from three points on tongue dorsum surface are used as the driven data. The mass spring technique is used to realize realistic tongue movements in pronunciation. To evaluate the effect of modeling and synthesis methods for tongue movements,the computer graphics techniques are employed to simulate the detailed effect of the tongue movements.Finally,the simulation results are compared with X-ray video of the motion characteristics of articulators for Mandarin Chinese recorded by a pronunciation specialist. The experimental result shows the proposed method achieves precise and realistic results of 3D tongue movements and it has a wide application prospect.更多还原