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IMAGE DECODING METHOD AND IMAGE DECODING APPARATUS USING CANDIDATE MOTION VECTORS

发明专利审中
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2权利要求 · 2 独立
§ Ⅰ

卷宗概要

发明人

Toshiyasu SUGIO; Takahiro NISHI; Youji SHIBAHARA; Kyoko TANIKAWA; Hisao SASAI; Toru MATSUNOBU

IPC 分类

H4N 19/513H4N 19/105H4N 19/107H4N 19/503H4N 19/52H4N 19/56

CPC 分类

H4N19/513H4N19/105H4N19/107H4N19/52H4N19/56H4N19/503

An image coding method includes: determining a maximum number of merging candidates; deriving first merging candidates based on blocks spatially or temporally neighboring a current block; determining whether or not a total number of the first merging candidates is smaller than the maximum number; deriving, by making a combination out of the derived first merging candidates, a second merging candidate for bi-directional prediction when it is determined that the total number of the first merging candidates is smaller than the maximum number; selecting a merging candidate to be used for the coding of the current block from the first merging candidates and the second merging candidate; and coding, using the determined maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.

原文(中文)

An image coding method includes: determining a maximum number of merging candidates; deriving first merging candidates based on blocks spatially or temporally neighboring a current block; determining whether or not a total number of the first merging candidates is smaller than the maximum number; deriving, by making a combination out of the derived first merging candidates, a second merging candidate for bi-directional prediction when it is determined that the total number of the first merging candidates is smaller than the maximum number; selecting a merging candidate to be used for the coding of the current block from the first merging candidates and the second merging candidate; and coding, using the determined maximum number, an index for identifying the selected merging candidate, and attaching the coded index to the bitstream.