Adaptive Error Concealment Algorithm Based on H.26L

An adaptive error concealment algorithm based on H.26L was proposed by making use of the feature and parameters of decoded frames. The algorithm uses three concealment algorithms, namely, boundary matching algorithm (BMA), spatial interpolation ( SI) and frequency interpolation (FI), adaptively according to error characteristics. It is independent of information provided by the encoder. Simulation results showed that the proposed algorithm was much more effective subjectively and objectively than any of the existing ones, especially for the changing scenes and fast motions.