Development of a diagnostic and therapeutic supporting system for disorder of facial movement based on video- image analysis of facial expression

我们从1999年开始研制基于面部表情视频图像分析的面部运动障碍诊断与治疗支持系统，并于2003年完成了第一版。但它是基于二维分析的，因此为了更准确的定量分析，我们改进了录像方法和分析软件，并开发了基于三维分析的新系统，并在项目期间通过临床应用继续评估和改进该系统.新系统的开发和改进（1）开发了一种具有固定头部定位装置的双侧反射镜系统，以在视频屏幕上同时获取面部的三个不同视图。位置，角度和大小的两个镜子，面部和摄像机之间的距离，以及如何紧紧地抓住头部进行了检查。(2)通过求解Pro/E，完成了适用于三维分析的第二版软件 ...更多信息 临床病例三维分析证实。(3)开发了一种三维分析算法，以获得真实的运动量。(4)通过对20名健康受试者的数据分析，验证了三维分析算法和新系统的准确性.对46例面神经麻痹患者进行静态或动态重建及肉毒毒素治疗，并对治疗前后面部表情进行录像及面部运动三维分析。结果进行了临床研究，并应用于治疗计划。通过与Yanagihara的40点法、肌电图、患者问卷调查、功能检查（兔眼程度、口漏饮食等）等面部运动评价方法的比较，验证了该系统的正确性。本文还通过对4例面痉挛和10例联带运动患者的面部运动分析，探讨了定量评估面痉挛和联带运动的应用。少

We had developed a diagnostic and therapeutic supporting system for disorder of facial movement based on video- image analysis of facial expression since 1999 and completed the 1st version in 2003. However it was based on two-dimensional analysis, so for the purpose of more accurate quantitative analysis we have improved the video- recording method and the software for analysis, and we developed a new system based on three-dimensional analysis and continued to evaluate and improve the system by clinical application during the term of project.1. Development and improvement of a new system(1) A bilateral mirror system with an immovable head positioning device was developed to acquire three different views of the face at the same time in the video screen. Position, angle, and size of both mirrors, distance between the face and a video-camera and how to hold the head tightly were examined. (2) The 2nd version software suitable for three-dimensional analysis was completed by solving the pro … More blems posed by three-dimensional analysis in clinical cases. (3) An algorism for three-dimensional analysis to obtain true amount of movement was developed. (4) Accuracy of an algorism for three-dimensional analysis and a new system were examined by the data obtained from 20 healthy subjects.2. Clinical application and evaluation of the systemVideo-recordings for various facial expressions before and after the treatment and three-dimensional analysis of facial movement were performed in 46 patients with facial palsy who underwent static or dynamic reconstruction and the botulinum toxin treatment. The results were investigated clinically and applied to therapeutic planning. Usefulness of the system was investigated by comparing the results with other evaluating methods for facial movement such as Yanagihara's 40 point method, electromyography, questionnaire to the patients, and functional examination(degree of lagophthalmos, leakage of diet from the mouth etc). Application to quantitative assessment for facial spasms and synkinesis were also examined by analysis of facial movement in 4 patients with facial spasms and 10 patients with synkinesis. Less