基于喉动态镜图像与声门图信号的声带表面三维振动重建

The 3D Vibration Reconstruction of Vocal Fold Surfaces Using Videostroboscopy and Glottography

以声带振动模式及其与声门图相互关系为基础 ,利用喉动态镜、光声门图及电声门图信号 ,通过声带边缘位移函数的参数测量和校正以及喉动态镜图像的声带边缘检测等方法构造出三维声门动态图像。实验结果表明采用这几种方法构造出的三维声带振动图像更客观地反映了声带三维动态振动过程 ,尤其是清楚地观察到声带厚度边缘与下缘的振动特性 ,并与发声生理学解释是一致的。

Based on the relations between vibration patterns of vocal folds and glottograms, the three-dimension surface vibration was reconstructed using videostroboscopy and glottography. The methods of parameter extraction and edge detection of vocal folds were studied. The reconstructed glottal three-dimension vibration distributions are more suitable for investigating the three-dimension vibration properties of vocal folds, especially in the direction of thickness, which is coincident with the explanation of vocal physiology.