2002 Fiscal Year Final Research Report Summary
An Animated model of Facial Movements of Facial Paralysis by Using the Computer-Assisted System
| Project/Area Number |
13671810
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Otorhinolaryngology
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| Research Institution | Kinki University |
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Principal Investigator |
MURATA Kiyotaka Kinki University School of Medicine, Department of Otolaryngology, Chief Professor, 医学部, 教授 (60026945)
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| Co-Investigator(Kenkyū-buntansha) |
SAITO Kei Kinki University School of Medicine, Department of Otolaryngology, Professor, 医学部, 助手 (40298972)
MIYASHITA Hiroaki Kinki University School of Medicine, Department of Otolaryngology, Professor, 医学部, 助手 (50298973)
KAWAMOTO Makoto Kinki University School of Medicine, Department of Otolaryngology, Professor, 医学部, 講師 (80278720)
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| Project Period (FY) |
2001 – 2002
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| Keywords | An Infrared Movie Camera / Facial palsy / Objective evaluation / The scoring system / Facial mimic muscles / Image processing |
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| Research Abstract |
The severity of facial paralysis is often determined through the use of a scoring system. However, there have been serious doubts concerning the objectivity and reproducibility of evaluation conducted by this method. To solve this problem, we developed an objective evaluation system for facial palsy, which digitalizes the movement of facial muscles for accurate measurement. We previously reported that the degree of facial palsy is evaluable by the computer-assisted numerical conversion of facial muscle movements. Recently, we improved this system to enable more detailed and precise evaluation to be performed through the use of a camera with a built-in infrared light flasher allowing for higher sampling rates. This system made it possible to calibrate the velocity of the markers on the face. Moreover, it was possible to evaluate three dimensional movements of facial muscles performing through the use of several cameras with a built-in infrared. Very subtle movements of expression muscles around the mouth accompanying the vocalization were successfully analyzed by this three dimensional system. It was very helpful to make an animated model of facial motions with these three dimensional dates. For the facial movements, details and exact information could be obtained, proving that the method is helpful for evaluating the anomalous facial movements and their prognosis.
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Research Products
(10 results)
