METHOD OF ENCODING AND DECODING VIDEO SIGNAL USING WEIGHTED PREDICTION AND APPARATUS THEREFOR Russian patent published in 2013 - IPC H04N7/32 

FIELD: information technology.

SUBSTANCE: method of encoding a video signal comprises steps of: forming a predicted image for the current block; generating a weighted prediction coefficient for scaling the predicted image; forming a weighted prediction image by multiplying the predicted image with the weighted prediction coefficient; generating a difference signal by subtracting the weighted prediction image from the current block; and encoding the difference signal, wherein generation of the weighted prediction coefficient involves calculating the weighted prediction coefficient for which the difference between the base layer image, which corresponds to the current block, and the predicted image is minimal.

EFFECT: high efficiency of encoding a video signal by reducing the error of the current block, which must be compressed, and the predicted image.

31 cl, 16 dwg