A Minimum Mean Square Error Estimation and Mixture-Based Approach to Packet Video Error Concealment

Daniel Persson, Thomas Eriksson
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
In this paper, a minimum mean square error-optimized mixture-based estimator is used for packet video error concealment. At the same time as on-line computational complexity is reduced, performance in peak signal-to-noise ratio (PSNR) is increased in comparison with a Gaussian mixture-based estimator that obtains its parameters through probability density estimation by means of the expectation maximization algorithm. Moreover, our method increases performance in PSNR compared to several other
more » ... to several other previous error concealment algorithms. Index Terms-Packet video, error concealment, estimation. MMSE ESTIMATION WITH MIXTURE-BASED ESTIMATOR In this section, mixture-based packet video error concealment is formulated as a MMSE-problem. The proposed technique is a further development of the approach reported on in [3], [4], and [5], that has previously shown to increase PSNR compared to the schemes [6], [7], and [2]. 2.1. Motivation of the proposed method
doi:10.1109/icassp.2007.366016 dblp:conf/icassp/PerssonE07 fatcat:bv74cdqcjvb3zcckfssyvbn7xu