Modeling of H.264/AVC based video transmission distortion over wireless network

In this paper, an accurate model to predict the slice-level transmission distortion for H.264/AVC video streams is presented. Our model gives full consideration to many new features of the H.264/AVC standard, especially intra prediction as well as inter prediction, and can be used for content-aware scheduling and performance optimization. In order to reduce complexity, the extracted information of the compressed domain from the video streams is exploited, to estimate the transmission distortion for each 4×4 block. By adding these distortions of all the 4×4 blocks in a slice up, the transmission distortion of the slice is obtained. Since the total average concealment distortion of each slice is independent on packet loss, it is introduced in the model as a known value to modify the compressed domain based transmission distortion. Simulation results show that our model outperforms the existing ones with respect to the accuracy for H.264/AVC video streams.