Related Experiment Video
Updated: Mar 12, 2026
11:34
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
Published on: December 3, 2013
16.1K
Real-time Simultaneous DKG and 2D DKG Using High-speed Digital Camera
Duck-Hoon Kang1, Soo-Geun Wang2, Hee-June Park3
1Department of Applied IT and Engineering, Pusan National University, Miryang, Gyeongsangnam-do, South Korea.
Journal of Voice : Official Journal of the Voice Foundation
|November 15, 2016
Summary
This study introduces a new system for real-time vocal cord vibration analysis, offering simultaneous digital kymography and multi-frame laryngeal videostroboscopy for improved voice disorder diagnosis.
Area of Science:
- Medical Imaging
- Otolaryngology
- Biomedical Engineering
Background:
- Accurate evaluation of vocal cord vibration is crucial for diagnosing voice disorders.
- Traditional laryngeal videostroboscopy (LVS) provides indirect visualization, unlike high-speed methods.
- High-speed videoendoscopy and videokymography offer superior frame rates for assessing vocal fold dynamics.
Purpose of the Study:
- To describe a novel system integrating real-time digital kymography (DKG), 2D DKG, and multi-frame (MF) LVS.
- To evaluate the system's efficacy in analyzing vibratory patterns of pathological voice using a high-speed digital camera.
Main Methods:
- Vocal fold vibration patterns were assessed in healthy subjects and patients with vocal pathologies (polyps, nodules, scars, paralysis).
- Quantitative parameters included left-right and amplitude symmetry indices.
- Qualitative assessment involved anterior-posterior phase symmetry analysis.
Main Results:
- The developed system enables rapid video recording with minimal memory usage.
- Playback speed for DKG, 2D DKG, MF LVS, and high-speed videoendoscopy is adjustable.
- MF LVS achieved a frame rate per cycle comparable to the fundamental frequency.
Conclusions:
- The system provides simultaneous, real-time imaging across multiple modalities.
- It facilitates comprehensive analysis of both morphological and functional vocal fold vibratory patterns.
- This technology enhances diagnostic and treatment information for vocal fold vibratory disorders.
