MEMORY ACCESS WINDOW AND FILLING FOR DETAILING OF MOTION VECTOR AND MOTION COMPENSATION Russian patent published in 2022 - IPC H04N19/57 H04N19/80 G06T7/207 

FIELD: encoding/decoding.

SUBSTANCE: invention relates to the determination and detailing of a motion vector, as well as to determination of a predictor for motion compensation, which can be used during encoding and decoding of video information. It is proposed to determine a motion vector, using comparison with patterns or two-sided comparison and formation of a predictor, based on the motion vector. Comparison with patterns or two-sided comparison and/or formation of the predictor use interpolation filtration. An interpolation filtration operation gets access to integer-valued positions of a sample inside a window and additionally uses filling values of the sample for integer-valued positions outside the window, which are based on at least one sample inside the mentioned window, and uses values of integer-valued positions of the sample, to which access was got, as well as filled values of the sample to conduct comparison with patterns or two-sided comparison and/or formation of the predictor.

EFFECT: increase in the efficiency of encoding/decoding.

23 cl, 21 dwg, 1 tbl