영상처리를 이용한 안면신경마비 평가시스템 개발
Development of Facial Nerve Palsy Grading System with Image Processing
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Objectives The objective and universal grading system for the facial nerve palsy is needed to the objectification of treatmentin Oriental medicine. In this study, the facial nerve palsy grading was developed with combination of imageprocessing technique and Nottingham scale. Methods The developed system is composed of measurement part, image processing part, facial nerve palsy evaluationpart, and display part. With the video data recorded by webcam at measurement part, the positions of markerwere measured at image processing part. In evaluation part, Nottingham scales were calculated in four differentfacial expressions with measured marker position. The video of facial movement, time history of marker position,and Nottingham scale were displayed in display part. Results & Conclusion The developed system was applied to a normal subject and a abnormal subject with facial nerve palsy. Theleft-right difference of Nottingham scores was large in the abnormal compared with the normal. In normal case,the change of the length between supraorbital point and infraorbital point was larger than that of the lengthbetween lateral canthus and angle of mouth. The abnormal case showed an opposite result. The developed systemshowed the possibilities of the objective and universal grading system for the facial nerve palsy
Abstract
Objectives The objective and universal grading system for the facial nerve palsy is needed to the objectification of treatmentin Oriental medicine. In this study, the facial nerve palsy grading was developed with combination of imageprocessing technique and Nottingham scale. Methods The developed system is composed of measurement part, image processing part, facial nerve palsy evaluationpart, and display part. With the video data recorded by webcam at measurement part, the positions of markerwere measured at image processing part. In evaluation part, Nottingham scales were calculated in four differentfacial expressions with measured marker position. The video of facial movement, time history of marker position,and Nottingham scale were displayed in display part. Results & Conclusion The developed system was applied to a normal subject and a abnormal subject with facial nerve palsy. Theleft-right difference of Nottingham scores was large in the abnormal compared with the normal. In normal case,the change of the length between supraorbital point and infraorbital point was larger than that of the lengthbetween lateral canthus and angle of mouth. The abnormal case showed an opposite result. The developed systemshowed the possibilities of the objective and universal grading system for the facial nerve palsy
참고문헌 (11)
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