METHOD AND DEVICE FOR CODING AND DECODING, EQUIPMENT ON THE CODING SIDE AND EQUIPMENT ON THE DECODING SIDE Russian patent published in 2023 - IPC H04N19/513 H04N19/533 H04N19/137 

FIELD: predictive coding/prediction of video data.

SUBSTANCE: coding method is proposed, which includes the following steps: if the characteristic information of the current block meets a special condition, the first reference block corresponding to the current block is determined based on the first initial motion vector of the current block, and the second reference block corresponding to the current block is determined based on the second initial motion vector of the current block; the first and second source motion vectors are adjusted according to the first pixel value of the first reference block and the second pixel value of the second reference block to obtain a first target motion vector corresponding to the first source motion vector and a second target motion vector corresponding to the second source motion vector; coding or decoding the current block based on the first and second target motion vectors.

EFFECT: improving the coding performance, in particular the quality of the prediction and the prediction error.

11 cl, 11 dwg