ENCODING METHOD AND DECODING METHOD Russian patent published in 2025 - IPC H04N19/52 H04N19/119 H04N19/176 H04N19/96 

Abstract RU 2840336 C2

FIELD: physics.

SUBSTANCE: invention relates to video encoding means. For this purpose, when encoding video, the motion vector of the current block included in the frame is changed. Motion vector is changed based on the correction values contained in the tables, where in each table the correction values are associated with the corresponding indices. First table is selected from the plurality of tables, and the first parameter indicating the selected first table is recorded in the bit stream. Second parameter indicating the first index from the number of indices in the first table is recorded in the bit stream. Correction value associated with the first index is identified. Motion vector is changed by a correction value in a predetermined direction. Current block is encoded based on the changed motion vector. Difference between the two correction values among the correction values varies from table to table, wherein the two correction values in each of the tables are associated with the same two indices.

EFFECT: high efficiency of video encoding.

4 cl, 72 dwg

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RU 2 840 336 C2

Authors

Li, Jing Ya

Lim, Chong Soon

Shashidhar, Sughosh Pavan

Liao, Ru Ling

Sun, Hai Wei

Teo, Han Boon

Abe, Kiyofumi

Toma, Tadamasa

Nishi, Takahiro

Dates

2025-05-21Published

2023-11-16Filed