摘要
如何在低带宽和高噪声信道环境下传输压缩视频和改善接收到的视频质量是当前视频技术研究的一个热点问题。简要介绍MPEG-44种错误恢复工具的基本原理,讨论了错误数据恢复的3个步骤。由于错误检测和定位是错误恢复的基础,因此,将重点讨论错误检测和定位的几种主要方法,并详细介绍一种基于数据隐藏的错误检测与定位技术。
In video field research has focused on the techniques to solve the problem, which is how to transmit compressed video data and improve received quality over channels with narrow bandwidth or high noise. Firstly the principles are introduced about four kinds of error resilience tools in MPEG-4. Then primary error-resilient methods of the decoder are given. Error detection and localization is the primary step. Several methods for the step are discussed and a method is proposed about error detection and localization by using data hiding scheme.
出处
《计算机工程与设计》
CSCD
北大核心
2005年第9期2371-2373,2380,共4页
Computer Engineering and Design
