ビデオ・シーケンスのイントラ予測方法及び装置

Japanese Patent JP7348307

B2

Embodiments of this application disclose an intra prediction method for a video sequence. The method includes: obtaining a size and a split mode of a chroma coding tree node; determining, based on the size and the split mode of the chroma coding tree node, whether to allow cross-component linear model (CCLM) intra prediction to be performed on a chroma coding unit included in the chroma coding tree node; determining a prediction mode of the chroma coding unit depending on whether to allow CCLM to be performed on the chroma coding unit; and processing the chroma coding unit based on the prediction mode of the chroma coding unit to obtain prediction samples of the chroma coding unit. The embodiments of this application further disclose an intra prediction apparatus and a decoder. The embodiments of this application help reduce a latency in processing a chroma coding unit, and improve a throughput of a hardware decoder.

Jiao Inn
Yang, Hai Tao
Chen, Jenle

JP2021564668A

September 20, 2023

March 27, 2020

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HUAWEI TECHNOLOGIES CO.,LTD.

H04N19/593; H04N19/103; H04N19/157; H04N19/176; H04N19/186; H04N19/70

Fangdong Chen et al.,CE3-related: Size restriction for CCLM,JVET-N0164-v3,2019年03月20日
Edouard Francois et al.,AHG16/non-CE3: Study of CCLM restrictions in case of separate luma/chroma tree,JVET-N0390r1,2019年03月23日
Ling Li et al.,Various chroma format support in VVC,JVET-N0225-v2,2019年03月24日
Ji-Yeon Jung et al.,AHG16/CE3-related: CCLM mode restriction for increasing decoder throughput,JVET-N0376-r1,2019年03月20日

Tadashige Ito
Tadahiko Ito
Osamu Miyazaki

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