Vocal Fold Videokymography: New Approach for the Analysis of Vocal Fold Vibratory Pattern

  • Lee, J.S. (Interdisciplinary Program in Medical and Biological Engineering Major, Seoul National University) ;
  • Kim, E.J. (Department of Computer Science, Inchon University) ;
  • Yi, W.J. (Interdisciplinary Program in Medical and Biological Engineering Major, Seoul National University) ;
  • Park, K.S. (Department of Biomedical Engineering, Seoul National University) ;
  • Sung, M.Y. (Department of Computer Science, Inchon University) ;
  • Sung, M.H. (Department of Otolaryngology Head and Neck Surgery, Seoul National University) ;
  • Kim, K.H. (Department of Otolaryngology Head and Neck Surgery, Seoul National University)
  • 이재성 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 김엄준 (인천대학교 공과대학 전자계산학과) ;
  • 이원진 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 박광석 (서울대학교 의과대학 의공학교실) ;
  • 성미영 (인천대학교 공과대학 전자계산학과) ;
  • 성명훈 (서울대학교 의과대학이비인후과학교실) ;
  • 김광현 (서울대학교 의과대학이비인후과학교실)
  • Published : 1997.05.23

Abstract

We developed a new analysis technique for the assessment of irregular vibratory movement of vocal folds. Successive frames of pre-recorded video images from videostroboscopy were transferred to computer memory and a vibratory tract of one selected point was described as a waveform by displaying the same lines of all frames along the y-direction. By applying this technique, irregular vibratory patterns of multiple regions, such as asynchronized registration of glottal cycles, could be easily visualized. It would be possible to monitor and analyze the pathologic changes of vocal fold movement by means of this newly developed system.

Keywords