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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

Subsequently, the motion vector predictor candidate selector 426 extracts a motion vector predictor candidate mvpListLX[mvpIdxLX] corresponding to the motion vector predictor index mvpIdxLX decoded and supplied by the bit strings decoding unit 201 from the motion vector predictor candidate list mvpListLX, as the selected motion vector predictor mvpLX (step S204 in FIG. 25).

Subsequently, the motion vector adder 427 adds the motion vector difference mvdLX of LX decoded and supplied by the bit strings decoding unit 201 and the motion vector predictor mvpLX of LX and calculates a motion vector mvLX of LX as in: mvLX=mvpLX+mvdLX (step S205 in FIG. 25).

Normal Motion Vector Predictor Mode Derivation Unit (Normal AMVP): Motion Vector Prediction Method

FIG. 20 is a flowchart illustrating a processing procedure of the normal motion vector predictor mode derivation process having a function common to the normal motion vector predictor mode derivation unit 301 of the picture coding device and the normal motion vector predictor mode derivation unit 401 of the picture decoding device according to the embodiment of the present invention.

權(quán)利要求

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