Recursive Decoder Distortion Estimation Based on AR(1) Source Modeling for Video (MA-L5)

Author(s) : Sila Ekmekci (Technical University Berlin, Germany) Thomas Sikora (Technical University Berlin, Germany)

Abstract : We introduce a recursive block based decoder distortion estimation technique for video and present results showing the accordance of the estimation results with the simulation results. Each block in a frame with all its corresponding blocks along the video sequence are modeled as an AR(1) source where the correlation coefficient of the source depends on the loop filtering effects and the additional noise term on the motion compensated block difference as well as on the quantization distortion of the block. The distortion term for each block of each frame in the video sequence is calculated recursively depending on the packet loss rate of the channel.

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