SIZE LIMITATION BASED ON INTRA-FRAME COLOUR MODE Russian patent published in 2023 - IPC H04N19/119 

Abstract RU 2807441 C2

FIELD: encoding and decoding video and images.

SUBSTANCE: invention is aimed to increase the efficiency of video and image encoding and decoding. It is achieved by performing a conversion between a video region chrominance block of a video image and a coded representation of the video in accordance with the rule. Moreover, the rule states that due to the fact that the chromaticity block has size M×N, the chrominance unit is prohibited from being represented in an encoded representation using an intra-frame coding mode, where M and N are integers indicating the width and height of the chrominance unit, respectively, and the intra-frame coding mode comprises encoding the chrominance unit based on a previously encoded video region of the video image.

EFFECT: increased efficiency of video and image encoding and decoding.

12 cl, 25 dwg, 6 tbl

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RU 2 807 441 C2

Authors

Xu, Jizheng

Deng, Zhipin

Zhang, Li

Liu, Hongbin

Zhang, Kai

Dates

2023-11-14Published

2020-09-21Filed