An Improved Error Concealment based on Redundant Motion Vector Information

摘要：

　　During video transmission over error prone network,compressed video bit-stream is sensitive to channel errors that may degrade the decoded pictures severely.In order to solve this problem,error concealment technique is a useful post-processing tool for recovering the lost information.In these methods,how to estimate the lost motion vector correctly is important for the quality of decoded picture.In order to recover the lost motion vector,an Decoder Motion Vector Estimation (DMVE) criterion was proposed and have well effect for recover the lost blocks.In this paper,we propose an improved error concealment method based on DMVE,which exploits the accurate motion vector by using redundant motion vector information.The experimental results with an H.264 codec show that our method improves both subjective and objective decoder reconstructed video quality,especially for sequences of drastic motion.

关键词： error concealment DMVE redundant motion vector

作者: Hongtao Deng

作者单位: School of Mathematics & Computer Science, Jianghan University, Wuhan, China

会议类型: 国际会议

会议名称: 2012 2nd international Conference on Materials Science and Information Technology(2012第二届材料科学与信息技术国际会议)(MSIT2012)

会议地点: 西安

会议语种:英文

页码: 1219-1224

在线出版日期: 2012-08-24（万方平台首次上网日期，不代表论文的发表时间）