Effects of orthognathic surgery on facial expressions

正颌手术对面部表情的影响

• 批准号: 09672098
• 负责人: TERADA Kazuto
• 金额: $ 2.24万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09672098/
• 关键词: Orthognathic surgery; Facial expression; Face model; Jaw defomity; Simulation; Rehabilitation; 顔モデル

The purpose of the present study was to investigate the effects of orthognathic surgery on facial expression by using a computer system, and to examine a training system for facial expression after treatment.A facial expression is defined as a movement of grid points in a generic three dimensional face model. A personal frontal face image was manually adjusted to a generic model. Facial expressions of a personal facial model could be produced according to Action Units on Facial Action Coding System.Six expressions (Surprise, Fear, Disgust, Anger, Happiness and Sadness) were produced from facial images before and after orthognathic surgery. Forty-two subjects estimated their expressions. Surprise, Fear and Disgust produced from a facail image after the treatment impressed deeply than before the treatment.It is useful to train for facial expressions, as a user shows and compares own facial expressions with facial expressions produced from user's frontal face image by this system.The present study was suggested to study the effect of orthognathic surgery on changing facial expressions.

本研究的目的是通过计算机系统研究正颌手术对面部表情的影响，并检查治疗后面部表情的训练系统。面部表情被定义为通用三坐标系中网格点的移动。立体人脸模型。将个人正面图像手动调整为通用模型。根据面部动作编码系统的动作单元可以产生个人面部模型的面部表情。根据正颌手术前后的面部图像产生六种表情（惊讶、恐惧、厌恶、愤怒、快乐和悲伤）。四十二名受试者评估了他们的表情。治疗后的面部图像产生的惊讶、恐惧和厌恶比治疗前印象深刻。训练面部表情非常有用，因为用户展示并比较自己的面部表情与该系统从用户正面图像产生的面部表情.本研究旨在研究正颌手术对改变面部表情的影响。