System and method for detecting characteristic of vocal cord vibration mechanics

Abstract

The invention relates to a detecting system and method for the mechanical properties of vocal fold vibration. The detecting system comprises a high-speed photography laryngoscope module, a high frame rate ultrasound module, a data acquisition module, a synchronous acquisition control module, an image display module, a data storage module, an imaging data processing module and a mechanics parameter extraction module; a high-speed photography laryngoscope and high frame rate ultrasound are respectively connected with the same computer. The detecting method comprises the following steps: 1) setting corresponding acquisition duration and storage path; 2) ensuring a high frame rate ultrasound probe to cling to the side of throat and inserting the high-speed photography laryngoscope from an oral cavity; 3) regulating related parameters of ultrasound and position and focus of the high-speed photography laryngoscope; 4) ensuring persons to be detected to vocalize and synchronously acquiring and storing data; 5) extracting glottis area and somatic layer shift; 6) extracting the mechanics parameter of vocal fold vibration. The invention provides a quantitative extracting method of the mechanics parameter of vocal fold vibration, thus obtaining the mechanics parameter of vibration of a vocal fold cover layer and the somatic layer with different mechanical properties.

Description

technical field [0001] The invention belongs to the field of vocal cord vibration detection, in particular to a detection system and detection method for the dynamic characteristics of vocal cord vibration. Background technique [0002] Vocal fold vibration is a complex and delicate three-dimensional motion process. Its imaging and measurement, especially the measurement of mechanical properties, has always been an important aspect in vocal physiological research and clinical examination. But because the vocal cords are located inside the larynx, and the vibration frequency is as high as 100-400Hz during normal vocalization, its vibration details are difficult to be directly detected by general instruments. For this reason, high-speed imaging technology (sampling rate greater than 1000 Hz) has been introduced into this field to perform dynamic imaging of vocal cord details in high-speed vibration, including high-speed photography and high-frame-rate ultrasound technology. ...

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Problems solved by technology

[0004] Aiming at the technical problem that it is impossible to obtain clear detailed images of vocal cord surface vibration in the prior art, and there i...

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