ADAPTIVE COLOUR CONVERSION ALARMS FOR CU LEVEL AND TU LEVEL Russian patent published in 2024 - IPC H04N19/70 H04N19/186 H04N19/12 H04N19/96 

Abstract RU 2812762 C1

FIELD: video encoding and decoding.

SUBSTANCE: signalling a coding unit (CU) level enable flag and a transform unit (TU) level encoded luminance flag for an adaptive colour transform (ACT) encoded block. A method and device are provided for receiving video data, obtaining a CU, determining whether a CU flag is set to a predetermined flag state, determining whether a CU tree type is set to a predetermined tree type, determining whether an ACT flag should be signalled based on any from whether the CU flag is set to a predetermined flag state and whether the tree type of the CU is set to a predetermined tree type, and encoding video data based on whether the ACT flag is signalled.

EFFECT: increased efficiency of encoding.

12 cl, 15 dwg, 4 tbl

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RU 2 812 762 C1

Authors

Chen Lien-Fei

Li Xiang

Liu Shan

Dates

2024-02-02Published

2021-06-01Filed