Error concealment analysis for H.264/advanced video coding encoded video sequencesFehlerverschleierungsanalyse in H264/Advanved Video Coding-codierten Videosequenzen

被引:1
|
作者
Luca Superiori
Olivia Nemethova
Markus Rupp
机构
[1] Vienna University of Technology,Institute of Telecommunications
关键词
error concealment; error detection; syntax check; subjective quality improvement; Fehlerverschleierung; Fehlererkennung; Syntaxüberprüfung; subjektive Qualitätsverbesserung;
D O I
10.1007/s00502-012-0053-9
中图分类号
学科分类号
摘要
Error concealment methods have become very important in particular when transmitting video streams over error prone wireless links. Often a retransmission of corrupted sequences is not possible and thus the receiver has to make the best out of the received stream. The contributions of this article are the following: firstly, a performance comparison of various error concealment strategies (straight decoding, slice level concealment and macroblock level concealment) is presented based on the detection of errors, the exact location of which is unknown. Secondly, an analytical treatment of the slice level concealment, resulting in a precise mathematical model is provided. Finally, further improvements are proposed by subjective methods based on visual inspection and comparison of their performance by means of simulations.
引用
收藏
页码:387 / 399
页数:12
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