METHOD FOR CYCLIC MOTION COMPENSATION WITH OVERSAMPLING OF THE REFERENCE IMAGE Russian patent published in 2022 - IPC H04N19/583 H04N19/59 H04N19/44 H04N19/117 

Abstract RU 2785364 C1

FIELD: imaging technology.

SUBSTANCE: invention relates to the field of encoding and decoding video data and, in particular, to enabling and disabling cyclic motion compensation. A method is proposed for generating a bit stream of encoded video data using at least one processor, including performing the first determination as to whether the current level of the current image is an independent level; performing a second determination as to whether oversampling of the reference image is enabled for the current level; based on the first determination and the second determination, disabling cyclic compensation for the current level and encoding the current level without cyclic compensation. Cyclic motion compensation can be a useful function for encoding, for example, a 360-degree image projected in an equirectangular projection (ERP) format and can reduce some visual artifacts on the “stitching” line.

EFFECT: increase in the efficiency of encoding and decoding.

17 cl, 16 dwg, 1 tbl

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RU 2 785 364 C1

Authors

Choi Byeongdoo

Wenger Stephan

Liu Shan

Dates

2022-12-06Published

2020-11-09Filed