公开(公告)号：US20180367797A1

公开(公告)日：2018-12-20

申请号：US16060342

申请日：2016-12-14

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Tokinobu MITASAKI ,  Kazuya HAYASE ,  Atsushi SHIMIZU

IPC: H04N19/137 ,  G06T7/246 ,  G06T7/11 ,  H04N19/14 ,  H04N19/126 ,  H04N19/176

Abstract: An image difference detection device includes a detection unit configured to detect presence or absence of a difference between a first region within a first image and a second region corresponding to the first region within a second image on the basis of one or both of a code amount of each of encoded blocks in first and second encoded data obtained by encoding the first image and the second image and an index value obtained from encoding information of each of the encoded blocks.

公开(公告)号：US20160057433A1

公开(公告)日：2016-02-25

申请号：US14781255

申请日：2014-03-18

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Shinobu KUDO ,  Masaki KITAHARA ,  Atsushi SHIMIZU ,  Hiroshi FUJII ,  Mayuko WATANABE

IPC: H04N19/176 ,  H04N19/196 ,  H04N19/187 ,  H04N19/119 ,  H04N19/172

CPC classification number: H04N19/176 ,  H04N19/119 ,  H04N19/157 ,  H04N19/172 ,  H04N19/187 ,  H04N19/197 ,  H04N19/198 ,  H04N19/30 ,  H04N19/96

Abstract: The computational complexity when a block configuration in an encoding target region is determined is reduced while the degradation of coding efficiency is suppressed. A video encoding apparatus includes a block selecting unit which selects each of blocks obtained by recursively dividing an encoding target block as a target block in a predetermined sequence, a block size acquiring unit which acquires the smallest block size in an adjacent block for the selected target block, an evaluation value calculating unit which calculates an evaluation value of the target block if a block size of the target block matches any one of the acquired block size, the block size one level higher than the acquired block size, and the block size one level lower than the acquired block size, and a block configuration determining unit which determines a combination of the blocks constituting the region within the encoding target block based on the evaluation value.

Abstract translation: 当编码目标区域中的块配置被确定时，计算复杂度降低，同时抑制编码效率的降低。 视频编码装置包括块选择单元，其选择以预定顺序递归地划分编码目标块作为目标块而获得的块中的每个块;块大小获取单元，用于获取所选目标的相邻块中的最小块大小 块，评估值计算单元，如果目标块的块大小与所获取的块大小，高于获取的块大小的一个级别的块大小和块大小一个匹配的任何一个，则计算目标块的评估值 低于所获取的块大小的块配置确定单元，以及基于评估值确定构成编码目标块内的区域的块的组合的块配置确定单元。