Error Concealment Methods for Improving HD Video Quality in Internet Transport

This paper presents some error concealment (EC) schemes for high-definition (HD) videos encoded using the H.264 and VC-1 codecs. These schemes enhance HD video quality in online Internet transmission without relying on feedback mechanisms. We propose and implement an EC method, and show that the peak signal-to-noise ratio (PSNR) improvement can be substantial (17 to 24 dB for a variety of HD videos under a packet loss rate of 20% and 25%). Although the schemes are not dependent on the use of error resilience methods such as flexible macroblock ordering (FMO), the best performance is usually achieved when FMO is employed. We will compare the performance of these schemes and evaluated the overheads associated with FMO. Finally, we will provide demos that clearly illustrate the benefits of the EC methods.

Published

2009-10

Content type

Original Research

DOI

10.5594/M001329

ISBN

978-1-61482-943-0