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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
US11800087B2
公開日期
2023-10-24
申請人
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

By selecting UNI1 as the predetermined partition as illustrated in FIG. 48A and FIG. 48B, in a case where a block in the neighbor of the right of a triangle merge mode illustrated in FIG. 48B is in a triangle merge mode illustrated in FIG. 48A, continuity of motion information to be stored can also be maintained in a region where the two triangle merge modes continue. Therefore, coding efficiency is improved compared with selecting UNI0 as the predetermined partition as illustrated in FIG. 47A and FIG. 47B.

Selecting UNI1 as the predetermined partition as illustrated in FIG. 48A and FIG. 48B can also maintain continuity of processing because motion information of partitions is accumulated after coding/decoding. Therefore, a processing amount is reduced compared with selecting UNI0 as the predetermined partition as illustrated in FIG. 47A and FIG. 47B.

By fixing, as L0 prediction, uni-prediction to be saved as UNI1, since the L0 prediction can be treated in the same manner as P slice, a processing amount is reduced compared with a case where uni-prediction saved as L1 prediction.

In all the embodiments described above, a plurality of technologies may be combined with each other.

權(quán)利要求

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