| 一种基于MPEG-4的三维人脸表情动画算法 |
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| 引用本文： | 於俊,汪增福.一种基于MPEG-4的三维人脸表情动画算法[J].中国科学技术大学学报,2011,41(4). |
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| 作者姓名： | 於俊 汪增福 |
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| 作者单位： | 中国科学技术大学自动化系,安徽合肥,230027 |
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| 摘 要： | 面向模型基人脸视频编解码领域,提出了一种基于MPEG-4的三维人脸表情动画算法.首先对编码端发送视频的首帧图像,利用Adaboost+Camshift+AAM(active appearance model算法检测人脸和定位特征点,接着特定化一个简洁人脸通用网格模型得到FDP(facial definition parameter);对于得到的FDP,解码端先用其特定化一个精细人脸通用网格模型,然后基于肌肉模型和参数模型相结合的方式来生成人脸表情动画,同时对人脸功能区进行划分.实验表明,该算法在FAP(facial animation parameter)流的驱动下可以生成真实感较强的三维人脸表情动画.
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| 关 键 词： | 人脸特定化 人脸动画 MPEG-4 肌肉模型 模型基编解码 |
A 3D facial expression animation system based on MPEG-4 |
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| YU Jun,WANG Zengfu.A 3D facial expression animation system based on MPEG-4[J].Journal of University of Science and Technology of China,2011,41(4). |
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| Authors: | YU Jun WANG Zengfu |
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| Institution: | YU Jun,WANG Zengfu(Dept.of Automation,University of Science & Technology of China,Hefei 230027,China) |
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| Abstract: | In view of the model based coding/decoding area,a 3D facial expression animation system based on MPEG-4 was proposed.The coder obtained FDPs(facial definition parameter) through face adaptation of a simple universal triangular model with Adaboost + Camshift + AAM algorithm for face detection and feature localization in the first frame.Then the decoder adapted a complex universal triangular model using these FDPs,Finally the algorithm produced facial animation combining the parameterized model and muscle mod... |
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| Keywords: | face adaptation facial animation MPEG-4 muscle model model based coding/decoding |
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