FIELD: video coding and decoding.
SUBSTANCE: proposed methods and apparatus for performing intra-prediction in a coder or decoder for non-square blocks allow using a combination of reference samples from the row located on top of the non-square block and the column located to the left of the non-square block for prediction. A weighted combination of reference samples is used, and the number of prediction angles is expanded in the longer direction of the non-square block, so that fewer prediction angles are used in the shorter direction.
EFFECT: increasing the efficiency of video coding/decoding.
13 cl, 15 dwg
