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Moving picture coding device, moving picture coding method, moving picture coding program, moving picture decoding device, moving picture decoding method, and moving picture decoding program

專利號(hào)
US11800087B2
公開日期
2023-10-24
申請(qǐng)人
JVCKENWOOD Corporation（JP Yokohama）
發(fā)明人
Shigeru Fukushima; Toru Kumakura; Hideki Takehara; Hiroya Nakamura; Satoru Sakazume; Hiroyuki Kurashige
IPC分類
H04N19/105; H04N19/51; H04N19/139; H04N19/159; H04N19/172
技術(shù)領(lǐng)域
prediction,predictor,motion,candidate,vector,merging,picture,coding,inter,derivation
地域： Yokohama

摘要

There is provided a technique that includes a triangle merging candidate list constructor structured to construct a triangle merging candidate list including spatial merging candidates, a first triangle merging candidate selector structured to select, from the triangle merging candidate list, a first triangle merging candidate that is uni-prediction, and a second triangle merging candidate selector structured to select, from the triangle merging candidate list, a second triangle merging candidate that is uni-prediction, in which in a region where motion compensation by weighted averaging by the first triangle merging candidate and the second triangle merging candidate is performed, uni-prediction motion information of one of the first triangle merging candidate or the second triangle merging candidate is saved.

說明書

Here, the uni-prediction motion information is a set of a motion vector and a reference index, while the bi-prediction motion information is formed with two sets of a motion vector and a reference index. The motion information represents either uni-prediction motion information or bi-prediction motion information.

The merging candidate selectors 347 and 447 use the derived merging candidate list mergeCandList as a triangle merging candidate list triangleMergeCandList.

The flowchart of FIG. 40 related to triangle merging candidate derivation will be described.

First, a merging candidate list mergeCandList is used as a triangle merging candidate list triangleMergeCandList (step S3501).

Subsequently, a merging candidate having a motion information list L0 is prioritized, and uni-prediction motion information of a merge triangle partition 0 is derived (step S3502).

Subsequently, a merging candidate having a motion information list L1 is prioritized, and uni-prediction motion information of a merge triangle partition 1 is derived (step S3503).

Note that step S3502 and step S3503 can be derived in random order and can also be processed in parallel.

FIG. 41 is a flowchart illustrating derivation of uni-prediction motion information of a merge triangle partition 0 according to the present embodiment.

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