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首页> 外文期刊>Journal of voice: official journal of the Voice Foundation >Graphical evaluation of vocal fold vibratory patterns by high-speed videolaryngoscopy
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Graphical evaluation of vocal fold vibratory patterns by high-speed videolaryngoscopy

机译：高速视频喉镜对声带振动模式的图形评估

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Objective To characterize the voice and vocal fold function of an individual, it is essential to evaluate vocal fold vibration. The most widely used method for this purpose has been videolaryngoscopy. Methods This article proposes a digital image processing algorithm to estimate the glottal area (ie, the space between the vocal folds) and produce graphs of the opening and closing phases of the glottal cycle. In eight subjects without voice disorders, vocal fold movements were recorded by high-speed videolaryngoscopy at 4000 frames per second. The video data were processed by a combination of image segmentation techniques that estimate the glottal area. The segmented area was used to construct the glottal waveform. Results The graphs revealed important properties of vocal fold vibration, including amplitude, velocity, and other characteristics that have a major influence on voice quality. Conclusions The combination of the high-speed technology with the proposed method improves the vocal fold analysis given a numerical feedback through graphical representation of the real vibratory patterns of the folds.
机译：目的为了表征一个人的声音和声带折叠功能，评估声带振动至关重要。为此目的，使用最广泛的方法是电视喉镜检查。方法本文提出了一种数字图像处理算法，以估计声门区域（即声带之间的空间）并生成声门循环的打开和关闭阶段的图形。在八名没有声音障碍的受试者中，通过高速视频喉镜检查以每秒4000帧的速度记录了声带运动。通过估计声门面积的图像分割技术的组合来处理视频数据。分割的区域用于构造声门波形。结果图表显示了声带振动的重要特性，包括振幅，速度和其他对语音质量有重要影响的特性。结论高速技术与所提出的方法相结合，通过对褶皱的真实振动模式进行图形表示，在给出数值反馈的情况下改善了声带分析。

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