视讯解码装置、视讯编码装置、视讯解码方法、视讯编码方法、及储存媒体（一）;VIDEO DECODING APPARATUS, VIDEO CODING APPARATUS, VIDEO DECODING METHOD, VIDEO CODING METHOD, AND STORAGE MEDIUM

摘要

一种视讯解码装置包括：一参考图像列表储存单元，其组构以储存数个图像的图像资讯；一运动向量资讯储存单元，其组构以储存运动向量资讯，该运动向量资讯包括与将被解码的一目标区块空间及时序相邻之区块的运动向量、及指示该等运动向量所参照的图像之参考图像识别符；以及一向量预测子产生单元，其组构以基于该图像资讯及该运动向量资讯而缩放该目标区块的一运动向量的向量预测子候选者、并将所缩放的向量预测子之候选者朝向0修正一预定量。; a motion vector information storing unit configured to store motion vector information including motion vectors of blocks that are spatially and temporally adjacent to a target block to be decoded and reference picture identifiers indicating pictures that the motion vectors refer to; and a vector predictor generating unit configured to scale a vector predictor candidate for a motion vector of the target block based on the picture information and the motion vector information and to correct the scaled vector predictor candidate toward 0 by a predetermined amount.