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基于混合特征和多HMM融合的图像序列表情识别
引用本文:詹永照,李婷,周庚涛.基于混合特征和多HMM融合的图像序列表情识别[J].计算机辅助设计与图形学学报,2008,20(7).
作者姓名:詹永照  李婷  周庚涛
作者单位:江苏大学计算机科学与通信工程学院,镇江,212013
摘    要:当前多数图像序列的人脸表情识别方法仅提取图像的某一类特征,导致特征参数不能全面地反映脸部情感信息.提出一种基于混合特征和多HMM融合的图像序列表情识别方法.采用Gabor小波变换、二维离散余弦变换分别提取眼睛及眉毛区域、鼻子区域的纹理变化特征,对嘴巴区域则采用主动表观模型提取形状变化特征.对待测图像序列中的每个表情特征区域采用离散隐马尔可夫模型得出6种表情概率;然后根据在训练阶段得到的每个表情特征区域对每种表情的贡献权值进行加权融合,并选择融合后的表情概率最大者作为识别结果.实验结果表明,该方法综合了表情的纹理与形状变化,能够得到很好的识别效果,且处理速度快,适合于实时图像序列的表情识别.

关 键 词:表情识别  Gabor小波变换  二维离散余弦变换  主动表观模型  隐马尔可夫模型

Facial Expression Recognition Based on Hybrid Features and Multiple HMMs Fusion for Image Sequences
Zhan Yongzhao,Li Ting,Zhou Gengtao.Facial Expression Recognition Based on Hybrid Features and Multiple HMMs Fusion for Image Sequences[J].Journal of Computer-Aided Design & Computer Graphics,2008,20(7).
Authors:Zhan Yongzhao  Li Ting  Zhou Gengtao
Affiliation:Zhan Yongzhao Li Ting Zhou Gengtao(School of Computer Science , Telecommunication Engineering,Jiangsu University,Zhenjiang 212013)
Abstract:Most of facial expression recognition methods for image sequences generally extract one kind of features currently,which results in a shortage that the features can not effectively reflect comprehensive facial emotional information.A method of expression recognition based on hybrid features and multiple HMMs fusion for image sequences is presented to address this problem in this paper.Texture features for the eye area are extracted by using Gabor wavelet transformation,texture features for the nose area are...
Keywords:expression recognition  Gabor wavelet transformation  2D discrete cosine transform  active appearance model  hidden Markov model  
本文献已被 CNKI 维普 万方数据 等数据库收录!
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