CAJ | 학술논문

肖像是一种能够抓住人物特征，又能隐藏细节，保留个人隐私的艺术表现形式，本文提出一种以中性表情人脸作为输入，自动生成不同表情的肖像算法。首先利用主动形状模型（Active Shape Model ，ASM ）提取人脸的关键特征点，然后根据统计学习获取的不同表情人脸的FAP （Facial Animation Parameter ）规则，对中性人脸的特征点进行变形，生成表情三角网格，将中性人脸图像作为纹理映射到表情人脸网格，生成表情人脸图像，最后利用图像的梯度域信息和非真实感渲染技术，将带表情的人脸生成具有肖像风格的人脸图像。所生成的多表情人脸肖像效果良好，能够应用于网络和报刊杂志等非真实感图形学和数字娱乐等领域中。
초상시일충능구조주인물특정，우능은장세절，보류개인은사적예술표현형식，본문제출일충이중성표정인검작위수입，자동생성불동표정적초상산법。수선이용주동형상모형（Active Shape Model ，ASM ）제취인검적관건특정점，연후근거통계학습획취적불동표정인검적FAP （Facial Animation Parameter ）규칙，대중성인검적특정점진행변형，생성표정삼각망격，장중성인검도상작위문리영사도표정인검망격，생성표정인검도상，최후이용도상적제도역신식화비진실감선염기술，장대표정적인검생성구유초상풍격적인검도상。소생성적다표정인검초상효과량호，능구응용우망락화보간잡지등비진실감도형학화수자오악등영역중。
Portrait is a kind of art form ,which can catch the features of a person ,hide the details and keep the personal pri-vacy .In this paper ,an algorithm for automatic generation of human portrait with multiple expressions is presented .The Active Shape Model is used to extract facial features ,and the set of Facial Animation Parameters is used to synthesis the multiple expressions for a neutral face .And with the gradient domain of the image and the Non-Photorealistic Rendering ,the portrait-liked face images with multiple expressions can be generated automatically .The generated portraits are effective and vivid .They can be applied in non-pho-torealistic computer graphics and entertainment ,such as video ,network ,newspapers and magazines .