Developments in model-based video coding
Developments in model-based video coding
复制标题
DOI：
10.1109/5.387091
复制
发表时间：
1995-06
期刊：
影响因子：
--
通讯作者：
D. Pearson
中科院分区：
文献类型：
--
作者：
D. Pearson
本文报告了基于模型的视频编码领域的最新进展，这是一种有望实现运动图像的非常大的比特率降低的技术。经过介绍和历史回顾，总结了几个领域的进展，其中包括改进的3D跟踪人头和面部表情，使用肌肉驱动的模型动画和皮肤合成，亮度补偿技术，以及切换编码器。使用头肩视频序列获得了从kb/S到大约1kb/S的码率。指出了基于模型的方法存在的问题，并讨论了CBR和VBR传输的未来发展。>；
This paper reports on current developments in the area of model-based video coding, a technique which shows promise of achieving very large bit-rate reductions for moving images. After an introduction and historical review, advances are summarized in several areas, among them improved 3D tracking of the human head and of facial expressions, the use of muscle-driven model animation with skin synthesis, techniques for luminance compensation, and switched coders. Bit rates ranging from 64 kb/s down to about 1 kb/s have been obtained using head-and-shoulder video sequences. Problems with model-based methods are identified and future developments in both CBR and VBR transmission discussed. >