METHOD AND APPARATUS FOR BIDIRECTIONAL INTERFRAME PREDICTION Russian patent published in 2021 - IPC H04N19/105 H04N19/159 H04N19/577 

FIELD: video data processing.

SUBSTANCE: group of inventions relates to video image encoding technologies. Proposed is a method for bidirectional interframe prediction. The method includes the stages of: receiving the indication information, receive a first movement information. The indication information therein is used to indicate the determination of a second movement information based on the first movement information, the first movement information constitutes information about the movement of the current image block in a first direction, and the second movement information constitutes information about the movement of the current image block in a second direction. The prediction samples of the current image block are determined based on the first movement information and the second movement information. The index value of the first reference frame is also retrieved in the first movement information.

EFFECT: increase in the data transmission rate and data compression efficiency due to the reduction in the amount of transmission resources required for movement information.

40 cl, 6 dwg, 3 tbl