Methods for decoding video, encoding video, and recorded materials readable by computers for the long term

Abstract

The invention relates to a method for decoding video comprising the following steps: acquiring, from a bit stream, the in-image prediction mode information representing the in-image prediction mode of the current block; determining the set of interpolation filters to be used when predicting the current block, based on at least one of the dimensions of the current block and the in-image prediction mode represented by the in-image prediction mode information; determining the reference position to which the current block's pattern is referenced according to the in-image prediction mode; Determine, within the set of interpolation filters, the interpolation filter that corresponds to the reference position; determine the predicted value of the current sample, based on the reference samples of the current block and this interpolation filter; and restore the current block, based on the predicted value of the current sample.