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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

Determination is made as to whether the LX prediction of mergeCandList[i] is valid (step S1307 in FIG. 39). In a case where the LX prediction of mergeCandList[i] is valid, determination is made as to whether the LX prediction of mergeCandList[j] is valid (step S1308 in FIG. 39). In a case where the LX prediction of mergeCandList[j] is valid, that is, in a case where both the LX prediction of mergeCandList[i] and the LX prediction of mergeCandList[j] are valid, a motion vector of LX prediction obtained by averaging the motion vector of LX prediction of mergeCandList[i] and the motion vector of LX prediction of mergeCandList[j] will be derived, and an average merging candidate of LX prediction having a reference index of LX prediction of mergeCandList[i] will be derived, so as to be set as LX prediction of averageCand, and the LX prediction of averageCand will be validated (step S1309 in FIG. 39). In step S1308 of FIG. 39, in a case where LX prediction of mergeCandList[j] is not valid, that is, in a case where LX prediction of mergeCandList[i] is valid and LX prediction of mergeCandList[j] is invalid, a motion vector of LX prediction of mergeCandList[i] and an average merging candidate of LX prediction having a reference index will be derived, so as to be set as LX prediction of averageCand, and the LX prediction of averageCand will be validated (step S1310 in FIG. 39). In a case where the LX prediction of mergeCandList[i] is not valid in step S1307 of FIG. 39, determination is made as to whether the LX prediction of mergeCandList[j] is valid (step S1311 of FIG. 39). In a case where LX prediction of mergeCandList[j] is valid, that is, in a case where LX prediction of mergeCandList[i] is invalid and LX prediction of mergeCandList[j] is valid, a motion vector of LX prediction of mergeCandList[j] and an average merging candidate of LX prediction having a reference index will be derived, so as to be set as LX prediction of averageCand, and the LX prediction of averageCand will be validated (step S1312 in FIG. 39). In step S1311 of FIG. 39, in a case where LX prediction of mergeCandList [j] is not valid, that is, in a case where LX prediction of mergeCandList[i] and LX prediction of mergeCandList[j] are both invalid, LX prediction of averageCand will be invalidated. (step S1312 in FIG. 39).

權(quán)利要求

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