公开(公告)号：US10070144B2

公开(公告)日：2018-09-04

申请号：US15073250

申请日：2016-03-17

申请人： FUJITSU LIMITED

发明人： Kimihiko Kazui ,  Satoshi Shimada ,  Junpei Koyama

IPC分类号： H04N19/46 ,  H04N19/50 ,  H04N21/234 ,  H04N21/44 ,  G11B27/031 ,  H04N19/70 ,  H04N19/68 ,  H04N19/44 ,  H04N19/503 ,  H04N19/132

CPC分类号： H04N19/50 ,  G11B27/031 ,  H04N19/132 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/68 ,  H04N19/70 ,  H04N21/23424 ,  H04N21/44016

摘要： A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.

公开(公告)号：US09973774B2

公开(公告)日：2018-05-15

申请号：US14857078

申请日：2015-09-17

申请人： FUJITSU LIMITED

发明人： Satoshi Shimada ,  Akira Nakagawa ,  Kimihiko Kazui ,  Junpei Koyama

IPC分类号： H04N11/02 ,  H04N19/52 ,  H04N19/105 ,  H04N19/503 ,  H04N19/176 ,  H04N19/51 ,  H04N19/103 ,  H04N19/587 ,  H04N19/577 ,  H04N19/513 ,  H04N19/31 ,  H04N19/33 ,  H04N19/543

CPC分类号： H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/503 ,  H04N19/51 ,  H04N19/521 ,  H04N19/543 ,  H04N19/577 ,  H04N19/587

摘要： A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; 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.

公开(公告)号：US09509988B2

公开(公告)日：2016-11-29

申请号：US13848288

申请日：2013-03-21

申请人： FUJITSU LIMITED

发明人： Akira Nakagawa ,  Kimihiko Kazui ,  Hidenobu Miyoshi ,  Junpei Koyama ,  Satoshi Shimada

IPC分类号： H04N19/00 ,  H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/18 ,  H04N19/48 ,  H04N19/625

CPC分类号： H04N19/124 ,  H04N19/126 ,  H04N19/14 ,  H04N19/18 ,  H04N19/48 ,  H04N19/625

摘要： A motion video encoding apparatus includes: a prediction error image generating unit which computes a difference between a block being encoded and a predicted image for the block being encoded and thereby generates a prediction error image; a prediction error orthogonal-transforming unit which computes a plurality of first frequency coefficients by orthogonal-transforming the prediction error image; a predicted image orthogonal-transforming unit which computes a plurality of second frequency coefficients by orthogonal-transforming the predicted image; a sign judging unit which judges the positive/negative sign of each one of the plurality of second frequency coefficients; and an adaptive encoding unit which encodes each given one of the plurality of first frequency coefficients by using sign match/mismatch information that indicates a match or mismatch between the sign of the given first frequency coefficient and the sign of a corresponding one of the plurality of second frequency coefficients.

摘要翻译： 一种运动图像编码装置，包括：预测误差图像生成单元，计算被编码的块与被编码的块的预测图像之间的差，由此生成预测误差图像; 预测误差正交变换单元，其通过对所述预测误差图像进行正交变换来计算多个第一频率系数; 预测图像正交变换单元，其通过对所述预测图像进行正交变换来计算多个第二频率系数; 符号判断单元，其判断所述多个第二频率系数中的每一个的正/负符号; 以及自适应编码单元，其通过使用指示给定第一频率系数的符号与所述多个第一频率系数中的相应一个的符号之间的匹配或不匹配的符号匹配/不匹配信息来对所述多个第一频率系数中的每一个进行编码 第二频率系数。

公开(公告)号：US09491481B2

公开(公告)日：2016-11-08

申请号：US14657747

申请日：2015-03-13

申请人： FUJITSU LIMITED

发明人： Satoshi Shimada ,  Akira Nakagawa ,  Kimihiko Kazui ,  Junpei Koyama

IPC分类号： H04N11/02 ,  H04N19/52 ,  H04N19/105 ,  H04N19/503 ,  H04N19/176 ,  H04N19/51 ,  H04N19/103 ,  H04N19/587 ,  H04N19/577 ,  H04N19/513 ,  H04N19/31 ,  H04N19/33 ,  H04N19/543

CPC分类号： H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/503 ,  H04N19/51 ,  H04N19/521 ,  H04N19/543 ,  H04N19/577 ,  H04N19/587

摘要： A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; 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.

公开(公告)号：US10440370B2

公开(公告)日：2019-10-08

申请号：US15431089

申请日：2017-02-13

申请人： FUJITSU LIMITED

发明人： Junpei Koyama ,  Kimihiko Kazui

IPC分类号： H04N7/12 ,  H04N19/182 ,  H04N19/593 ,  H04N19/93 ,  G09G5/06

摘要： An apparatus for image coding includes a processor to: execute a determining process that includes, when a specific entry included in a first palette for use in coding a first block in a coding-target image is not an entry candidate for a second palette for use in coding a second block to be coded after the first block, determining an entry to be included in the second palette based on a first index indicating a code amount to be generated when the specific entry is to be included in the second palette and a second index indicating a code amount to be generated when the specific entry is not to be included in the second palette; execute a generating process that includes generating the second palette including the entry determined in the determining process; and execute a palette coding process that includes coding the second block by the second palette.

公开(公告)号：US10187638B2

公开(公告)日：2019-01-22

申请号：US15729808

申请日：2017-10-11

申请人： FUJITSU LIMITED

发明人： Junpei Koyama ,  Satoshi Shimada

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/107 ,  H04N19/124 ,  H04N19/186 ,  H04N19/182 ,  H04N19/61

摘要： An apparatus for coding video in one of a plurality of prediction modes executes a first process for calculating first evaluation values regarding each of the plurality of prediction modes, based on a plurality of luminance prediction errors, each luminance prediction error being a difference between luminance of each pixel in an input image and luminance of each pixel in a prediction image, a plurality of color difference prediction errors, each color difference prediction error being a difference between a color difference of each pixel in the input image and a color difference of each pixel in the prediction image, and a calculation result of the luminance prediction errors and the color difference prediction errors; executes a second process for selecting a predetermined number of prediction modes from the prediction modes, based on the first evaluation values.

公开(公告)号：US09716896B2

公开(公告)日：2017-07-25

申请号：US15073234

申请日：2016-03-17

申请人： FUJITSU LIMITED

发明人： Kimihiko Kazui ,  Satoshi Shimada ,  Junpei Koyama

IPC分类号： H04N19/503 ,  H04N19/50 ,  H04N21/234 ,  H04N21/44 ,  G11B27/031 ,  H04N19/70 ,  H04N19/68 ,  H04N19/44 ,  H04N19/132 ,  H04N19/46

CPC分类号： H04N19/50 ,  G11B27/031 ,  H04N19/132 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/68 ,  H04N19/70 ,  H04N21/23424 ,  H04N21/44016

摘要： A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.

公开(公告)号：US09654760B2

公开(公告)日：2017-05-16

申请号：US13670942

申请日：2012-11-07

申请人： FUJITSU LIMITED

发明人： Junpei Koyama ,  Kimihiko Kazui ,  Hidenobu Miyoshi ,  Satoshi Shimada

IPC分类号： H04N7/32 ,  H04N13/00 ,  H04N19/597 ,  H04N19/55

CPC分类号： H04N13/161 ,  H04N13/156 ,  H04N19/55 ,  H04N19/597

摘要： An encoding device includes a determination unit configured to determine, when performing detection of a motion vector using the decoded image of a frame image encoded in increments of blocks prior to the frame image to be encoded regarding an encoded block to be encoded of a plurality of blocks included in this frame image to be encoded at the time of encoding a frame image included in a moving image where a first image and a second image are arrayed using inter-image prediction encoding processing, correlation height as to the image of the encoded block regarding each of the image of a first area corresponding to the first image and the image of a second area corresponding to the second image included in a boundary block straddling a boundary between the first image and the second image of a block included in the decoded image.

公开(公告)号：US09621886B2

公开(公告)日：2017-04-11

申请号：US13851560

申请日：2013-03-27

申请人： FUJITSU LIMITED

发明人： Kimihiko Kazui ,  Satoshi Shimada ,  Akira Nakagawa ,  Hidenobu Miyoshi ,  Junpei Koyama

IPC分类号： H04N19/00 ,  H04N19/176 ,  H04N19/50 ,  H04N19/70 ,  H04N19/46 ,  H04N19/13 ,  H04N19/132 ,  H04N19/152 ,  H04N19/124

CPC分类号： H04N19/50 ,  H04N19/124 ,  H04N19/13 ,  H04N19/132 ,  H04N19/152 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

摘要： A motion video encoding apparatus includes: a group determining unit which determines to which of a plurality of groups each block belongs; a group decode time information computing unit which computes a decode time for each of the groups; a group information appending unit which appends group information identifying the group to which each block belongs to data to be output; a code amount control unit which controls an amount of code for each block contained in the group so that data needed for decoding all the blocks contained in the group will arrive at a stream receive buffer provided in a motion video decoding apparatus by the decode time of the group when the data is transmitted to the motion video decoding apparatus at a prescribed transmission rate; and an encode processing unit which encodes each block, based on control information concerning the amount of code.

公开(公告)号：US20160014408A1

公开(公告)日：2016-01-14

申请号：US14857078

申请日：2015-09-17

申请人： FUJITSU LIMITED

发明人： Satoshi Shimada ,  Akira Nakagawa ,  Kimihiko Kazui ,  Junpei Koyama

IPC分类号： H04N19/105 ,  H04N19/543 ,  H04N19/587 ,  H04N19/31 ,  H04N19/513 ,  H04N19/577 ,  H04N19/52 ,  H04N19/176

CPC分类号： H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/176 ,  H04N19/31 ,  H04N19/33 ,  H04N19/503 ,  H04N19/51 ,  H04N19/521 ,  H04N19/543 ,  H04N19/577 ,  H04N19/587

摘要： A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; 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.