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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
技術領域
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

In a case where there is inter prediction information having the same value as the inter prediction information candidate hMvpCand among the elements (that is, inter prediction information) registered in the history-based motion vector predictor candidate list HmvpCandList provided in the coding information storage memory 111 on the coding side and the coding information storage memory 205 on the decoding side, the element will be deleted from the history-based motion vector predictor candidate list HmvpCandList. In contrast, in a case where there is no inter prediction information having the same value as the inter prediction information candidate hMvpCand, the head element of the history-based motion vector predictor candidate list HmvpCandList will be deleted, and the inter prediction information candidate hMvpCand will be added to the end of the history-based motion vector predictor candidate list HmvpCandList.

The number of elements of the history-based motion vector predictor candidate list HmvpCandList provided in the coding information storage memory 111 on the coding side and the coding information storage memory 205 on the decoding side of the present invention is set to six.

First, the history-based motion vector predictor candidate list HmvpCandList is initialized in units of slices (step S2101 in FIG. 26). All the elements of the history-based motion vector predictor candidate list HmvpCandList are emptied at the head of the slice, and the number NumHmvpCand (current number of candidates) of history-based motion vector predictor candidates registered in the history-based motion vector predictor candidate list HmvpCandList is set to 0.

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