Very low bit rate face video compression using linear combination of 2D face views and principal components analysis
Very low bit rate face video compression using linear combination of 2D face views and principal components analysis
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DOI：
10.1016/s0262-8856(99)00005-0
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发表时间：
1999-11-17
影响因子：
4.7
通讯作者：
Buxton, BF
中科院分区：
文献类型：
--
作者：
Koufakis, I;Buxton, BF
我们提出了一种非常低的比特率编码的人脸视频会议应用在互联网或移动的通信网络的图像合成技术。所提出的方案表示每个新的人脸视图作为一个线性组合的三个基础人脸视图的同一个人。目标面部视图的背景也通过使用用于面部区域的基础视图的线性组合方法来编码。然而，眼睛和嘴区域的变化不能通过线性组合方案进行编码。这些区域使用主成分分析与三个训练集的眼睛和嘴的图像相同的人进行编码。该方案的结果在一个非常紧凑的表示的人脸视频数据。以1384至1620比特/帧的估计比特率重建高质量图像。(C)1999 Elsevier Science B. V.保留所有权利。
We present an image synthesis technique for very low bit rate encoding of faces for videoconferencing applications over the Internet or mobile communication networks. The proposed scheme represents each new face view as a linear combination of three basis face views of the same person. The background of the target face view is also encoded by the linear combination method using the basis views used for the face area. However, changes in the eyes and mouth regions cannot be encoded by the Linear combination scheme. These regions are encoded using principal components analysis with three training sets of eyes and mouth images of the same person. The scheme results in a very compact representation of the face video data. Good quality images are reconstructed with an estimated bit rate varying from 1384 to 1620 bits/frame. (C) 1999 Elsevier Science B.V. All rights reserved.