Video Transmission Channel Distortion Estimation Model for H.264/AVC Based on Channel Simulation

A precise simulative estimate of a channel distortion model is proposed by analyzing characteristics of error propagation. This model can well be combined with the advantages of the recursive optimal per-pixel estimate model and the channel simulative estimate model. A specific packet loss-rate channel distortion is calculated by a few special channel simulators first. Then other packet loss-rate channel distortions are calculated by the relationship between packet loss-rate and channel distortion. The estimation accuracy is demonstrated via simulation results from video transmission over packet loss channel. The average estimation error is 9.4% for different intensity sequences at different packet loss-rates, which illustrates that the actual distortion can be estimated accurately and quickly by the proposed model.