ArticlePloS one2019
Influence of spatial camera resolution in high-speed videoendoscopy on laryngeal parameters.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Direction of Cepstral Peak Prominence Change Moderates Divergent Kinematic Responses to Voice Stimulability Testing.Journal of voice : official journal of the Voice Foundation · 2026Article
- Vocal Fold Vibratory Kinematics and Acoustic Correlates in Pressed and Breathy Phonation.Journal of speech, language, and hearing research : JSLHR · 2026Article
- Vocal Fold Kinematics in Phonotrauma From High Speed Videoendoscopy.The Laryngoscope · 2025Article
- Cell-Based Outer Vocal Fold Replacement Both Treats and Prevents Vocal Fold Scarring in Rabbits.The Laryngoscope · 2024Article
- Value of high-speed videoendoscopy as an auxiliary tool in differentiation of benign and malignant unilateral vocal lesions.Journal of cancer research and clinical oncology · 2024Article
- Influence of flow rate and fiber tension on dynamical, mechanical and acoustical parameters in a synthetic larynx model with integrated fibers.Frontiers in physiology · 2024Article
- Effect of Ligament Fibers on Dynamics of Synthetic, Self-Oscillating Vocal Folds in a Biomimetic Larynx Model.Bioengineering (Basel, Switzerland) · 2023Article
- Voice Feature Selection to Improve Performance of Machine Learning Models for Voice Production Inversion.Journal of voice : official journal of the Voice Foundation · 2023Article
- Article
- Isolated Severe Dysphonia as a Presentation of Post-COVID-19 Syndrome.Diagnostics (Basel, Switzerland) · 2022Article
- Comparative analysis of high-speed videolaryngoscopy images and sound data simultaneously acquired from rigid and flexible laryngoscope: a pilot study.Scientific reports · 2021Article
- OpenHSV: an open platform for laryngeal high-speed videoendoscopy.Scientific reports · 2021Article
- A Portable Smartphone-Based Laryngoscope System for High-Speed Vocal Cord Imaging of Patients With Throat Disorders: Instrument Validation Study.JMIR mHealth and uHealth · 2021Article
- Fluid-structure-acoustic interactions in an ex vivo porcine phonation model.The Journal of the Acoustical Society of America · 2021Article
- Article
- Machine learning based identification of relevant parameters for functional voice disorders derived from endoscopic high-speed recordings.Scientific reports · 2020Article
- Article
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In laryngeal high-speed videoendoscopy (HSV) the area between the vibrating vocal folds during phonation is of interest, being referred to as glottal area waveform (GAW). Varying camera resolution may influence parameters computed on the GAW and hence hinder the comparability between examinations. This study investigates the influence of spatial camera resolution on quantitative vocal fold vibratory function parameters obtained from the GAW. In total 40 HSV recordings during sustained phonation (20 healthy males and 20 healthy females) were investigated. A clinically used Photron Fastcam MC2 camera with a frame rate of 4000 fps and a spatial resolution of 512×256 pixels was applied. This initial resolution was reduced by pixel averaging to (1) a resolution of 256×128 and (2) to a resolution of 128×64 pixels, yielding three sets of recordings. The GAW was extracted and in total 50 vocal fold vibratory parameters representing different features of the GAW were computed. Statistical analyses using SPSS Statistics, version 21, was performed. 15 Parameters showing strong mathematical dependencies with other parameters were excluded from the main analysis but are given in the Supporting Information. Data analysis revealed clear influence of spatial resolution on GAW parameters. Fundamental period measures and period perturbation measures were the least affected. Amplitude perturbation measures and mechanical measures were most strongly influenced. Most glottal dynamic characteristics and symmetry measures deviated significantly. Most energy perturbation measures changed significantly in males but were mostly unaffected in females. In females 18 of 35 remaining parameters (51%) and in males 22 parameters (63%) changed significantly between spatial resolutions. This work represents the first step in studying the impact of video resolution on quantitative HSV parameters. Clear influences of spatial camera resolution on computed parameters were found. The study results suggest avoiding the use of the most strongly affected parameters. Further, the use of cameras with high resolution is recommended to analyze GAW measures in HSV data.
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