Packet Video Error Concealment With Gaussian Mixture Models

In this paper, Gaussian mixture modeling is applied toerror concealment for block-based packet video. A Gaussian mixture model for video data is obtained offline and is thereafter utilized online in order to restore lost blocks from spatial and temporal surrounding information. We propose estimators on closed form for missing data in the case of varying available neighboring contexts. Our error concealment strategy increases peak signal-to-noise ratio compared to previously proposed schemes. Examples of improved subjective visual quality by means of the proposed method are also supplied. ©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.Daniel Persson, Thomas Eriksson and Per Hedelin, Packet Video Error Concealment With Gaussian Mixture Models, 2008, IEEE Transactions on Image Processing, (17), 2, 145-154.http://dx.doi.org/10.1109/TIP.2007.914151