Videokymography: High-speed line scanning of vocal fold vibration
Videokymography: High-speed line scanning of vocal fold vibration
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DOI：
10.1016/s0892-1997(96)80047-6
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发表时间：
1996-06-01
期刊：
影响因子：
2.2
通讯作者：
Schutte, HK
中科院分区：
文献类型：
--
作者：
Svec, JG;Schutte, HK
一种用于振动的高速可视化的数字技术，称为视频记录，被开发并应用于声带。该系统使用了一个改进的摄像机，能够在两种模式下工作：高速（近8,000张图像/秒）和标准（CCIR标准中的50张图像/秒）。在高速模式下，摄像机从整个喉部图像中选择一条有效水平线（横向于声门）。连续的线图像在商业电视监视器上以真实的时间呈现，从上到下填充每个视频帧。该系统使人们能够观察左右不对称，开放商，粘膜波的传播，运动的上部，并在关闭阶段，声带下缘等该技术是适合于进一步处理和量化记录的振动。
A digital technique for high-speed visualization of vibration, called videokymography, was developed and applied to the vocal folds. The system uses a modified video camera able to work in two modes: high-speed (nearly 8,000 images/s) and standard (50 images/s in CCIR norm). In the high-speed mode, the camera selects one active horizontal line (transverse to the glottis) from the whole laryngeal image. The successive line images are presented in real time on a commercial TV monitor, filling each video frame from top to bottom. The system makes it possible to observe left-right asymmetries, open quotient, propagation of mucosal waves, movement of the upper and, in the closing phase, the lower margins of the vocal folds, etc. The technique is suitable for further processing and quantification of recorded vibration.