Intra Prediction Mode Using Extrapolation Filter

A novel intra prediction method is presented in this paper, where the prediction samples are generated by an extrapolation filter. This method has been proposed for the future video coding standard. Firstly, an extrapolation filter is either derived from the reconstructed neighboring area or inherited from the neighboring decoded blocks of the current block. Secondly, the prediction samples are generated by an extrapolation process in a parallel manner. The proposed extrapolation filter-based intra prediction method is implemented on top of the exploration test model ECM-10.0 reference software, and the simulations are conducted according to the common test conditions. Compared to ECM-10.0, the simulation results show {0.24%,0.19%,0.19%} BD-rates saving for {Y,U,V} components in the all intra configuration and {0.10%,0.12%,0.19%} BD-rates saving for {Y,U,V} components in the random access configuration.