Research of Video Error Concealment Algorithm for the Remote Education System

摘要：

Remote education is a new education mode which can train people all over the worm by providing teaching videos. This paper presents an efficient error concealment algorithm for H.264, which we use in the decoder of the video player to improve teaching video quality. In the proposed algorithm, first considering the character of teaching video, estimate the error Macro Block (MB) belongs to foreground or background; if the error MB belongs to background we replace the error MB by copying the MB in the reference frame, else, we introduce Lagrange algorithm and Decoder Motion-Vector Estimation algorithm (DMVE) to estimate the optimal Motion Vector (MV), and replace the error MB with which has the optimal MV. Results demonstrate that proposed algorithm provides better performance than the conventional algorithm, which improves teaching video quality.

作者: Nian Yang Feng Li

作者单位: Computer Science and Telecommunication Engineering,Jiangsu University,Zhenjiang 212013,China

会议类型: 国际会议

会议名称: 2008 IEEE International Symposium on IT in Medicine and Education(2008信息技术在医学和教育中的应用国际研讨会)(ITME 2008)

会议地点: 厦门

会议语种:英文

页码: 487-490

在线出版日期: 2008-12-12（万方平台首次上网日期，不代表论文的发表时间）