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1. 发明授权

US10097827B2 Apparatus and method for image encoding, apparatus and method for image decoding, and image transmission system 有权
公开(公告)号：US10097827B2
公开(公告)日：2018-10-09
申请号：US15461975
申请日：2017-03-17
申请人： FUJITSU LIMITED
发明人： Hidenobu Miyoshi
IPC分类号： H04N19/117 , H04N19/463 , H04N19/14 , H04N19/186
摘要： An image encoding apparatus includes a mode determining unit and an encoding unit. The mode determining unit determines a first operating mode and a second operating mode of an adaptive filter which is applied to a block in an input image in decoding. In this regard, the mode determining unit determines the first operating mode based on a first signal of the input image, and determines the second operating mode based on a second signal of the input image. The encoding unit encodes the second operating mode by assigning a code with a lower bit number to the second operating mode when the second operating mode has higher similarities to the first operating mode.

2. 发明授权

US09854238B2 Video encoding apparatus, video encoding method, and video encoding computer program 有权
公开(公告)号：US09854238B2
公开(公告)日：2017-12-26
申请号：US14644310
申请日：2015-03-11
申请人： FUJITSU LIMITED
发明人： Hidenobu Miyoshi
IPC分类号： H04N19/107 , H04N19/167 , H04N19/139 , H04N19/176 , H04N19/91
CPC分类号： H04N19/107 , H04N19/139 , H04N19/167 , H04N19/176 , H04N19/91
摘要： In a video encoding apparatus, an encoder for encoding a first region of a picture includes: an inhibited block identifying unit which identifies a first inhibit target sub-block that is contained within the first region and that may select a motion vector of a referenced block contained in a second region of an already encoded picture, the second region being a region encoded by another encoder, as a prediction vector for the motion vector of the first sub-block when an inter-predictive coding mode is applied; and a predictive encoding unit which uses a motion vector other than the motion vector of the referenced block as the prediction vector when encoding a second inhibit target sub-block by using the inter-predictive coding mode, wherein the second inhibit target sub-block is a sub-block that contains the first inhibit target sub-block and at which the inter-predictive coding mode is applied.

3. 发明授权

US09479781B2 Motion video encoding apparatus, motion video encoding method, and motion video encoding computer program 有权
标题翻译：运动视频编码装置，运动视频编码方法和运动视频编码计算机程序
公开(公告)号：US09479781B2
公开(公告)日：2016-10-25
申请号：US13938952
申请日：2013-07-10
申请人： FUJITSU LIMITED
发明人： Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa , Hidenobu Miyoshi , Junpei Koyama
IPC分类号： H04N7/12 , H04N19/625 , H04N19/149 , H04N19/124 , H04N19/91 , H04N19/152 , H04N19/174
CPC分类号： H04N19/625 , H04N19/124 , H04N19/149 , H04N19/152 , H04N19/174 , H04N19/91
摘要： A motion video encoding apparatus includes: a group determining unit which determines, for each block, a group to which the block belongs; a group decode time information computing unit which computes a decode time for each group; a code amount control unit which controls, for each group, an amount of code resulting from entropy encoding each block in the group so that data needed for decoding all of the blocks in the group arrives at a stream receive buffer by a decode time of the group when the data is transmitted at a prescribed transmission rate; a compression unit which compresses the data of each block based on the amount of code of the block; an entropy encoding unit which entropy-encodes the compressed data of each block; and a decode information appending unit which appends, to data to be output, correction information for the decode time of each group.
摘要翻译：运动视频编码装置包括：组确定单元，对于每个块，确定该块所属的组; 组解码时间信息计算单元，其计算每个组的解码时间; 代码量控制单元，对于每个组，对从组中的每个块进行熵编码得到的代码量控制，使得解码组中的所有块所需的数据通过解码时间到达流接收缓冲器当以规定的传输速率传输数据时，压缩单元，其基于块的代码量来压缩每个块的数据; 熵编码单元，对每个块的压缩数据进行熵编码; 以及附加到要输出的数据的解码信息附加单元，用于每组的解码时间的校正信息。

4. 发明申请

US20160127735A1 MOTION PICTURE ENCODING DEVICE AND MOTION PICTURE DECODING DEVICE 审中-公开
公开(公告)号：US20160127735A1
公开(公告)日：2016-05-05
申请号：US14994744
申请日：2016-01-13
申请人： FUJITSU LIMITED
发明人： Akira Nakagawa , Hidenobu Miyoshi
IPC分类号： H04N19/186 , H04N19/61 , H04N19/52 , H04N19/139 , H04N19/105
CPC分类号： H04N19/186 , H04N19/105 , H04N19/139 , H04N19/159 , H04N19/16 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/521 , H04N19/61
摘要： When a prediction is made between fields with different parity, the predicative efficiency of a chrominance vector is improved by adaptively switching the generation of a chrominance motion vector depending on encoding/decoding field parity (top/bottom) and a reference field parity (top/bottom), and the coding efficiency is improved accordingly.

5. 发明申请

US20130215966A1 IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE 审中-公开
标题翻译：图像编码方法，图像解码方法，图像编码装置，图像解码装置
公开(公告)号：US20130215966A1
公开(公告)日：2013-08-22
申请号：US13850050
申请日：2013-03-25
申请人： FUJITSU LIMITED
发明人： Hidenobu Miyoshi , Junpei Koyama , Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/13 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/513
摘要： A method including acquiring decode information of a decoded block in a decode target image from a storage unit; selecting an decoded image such that the decode target image is situated between the decoded image and a reference image of the decoded image; acquiring, from the storage unit, decode information of a predetermined block in the selected decoded image; predicting a reference mode indicating a prediction direction of a decode target block that refers to decoded images in plural directions, by using the acquired decode information of the decoded block and decode information of the predetermined block; decoding reference mode information for determining the reference mode of the decode target block from encode data; and determining the reference mode of the decode target block from the predicted reference mode and the decoded reference mode information.
摘要翻译：一种方法，包括从存储单元获取解码目标图像中的解码块的解码信息; 选择解码图像，使得解码目标图像位于解码图像和解码图像的参考图像之间; 从所述存储单元获取所选择的解码图像中的预定块的信息; 通过使用获取的解码块的解码信息和预定块的解码信息来预测指示参照多个方向的解码图像的解码目标块的预测方向的参考模式; 解码参考模式信息，用于从编码数据确定解码目标块的参考模式; 以及从预测参考模式和解码的参考模式信息确定解码目标块的参考模式。

6. 发明授权

US10827172B2 Information processing apparatus, information processing method, and information processing program 有权
公开(公告)号：US10827172B2
公开(公告)日：2020-11-03
申请号：US16123475
申请日：2018-09-06
申请人： FUJITSU LIMITED
发明人： Hidenobu Miyoshi
IPC分类号： H04N19/117 , H04N19/105 , H04N19/513 , H04N19/176 , H04N19/159 , H04N19/126 , H04N19/31
摘要： An apparatus includes a memory and one or more processors. The processors code each block in a frame of moving images with use of a reference image. The processors generate a decoded image by decoding a coded block and calculate evaluation values for selection of each type of offset filtering. The processors also determine whether the block to be coded is a static region and make an adjustment in the evaluation value on the first offset filtering, based on a layer position of the reference image in a time direction upon a determination that the block to be coded is the static region. The processors also select the type of offset filtering based on the evaluation value on first offset filtering having undergone the adjustment and the evaluation values on second offset filtering and third offset filtering and carry out the selected offset filtering for the decoded image.

7. 发明授权

US09654760B2 Encoding device, decoding device, encoding method, and decoding method 有权
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.

8. 发明授权

US09621886B2 Motion video encoding apparatus, motion video encoding method, and motion video encoding computer program 有权
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.

9. 发明授权

US09313496B2 Video encoder and video encoding method as well as video decoder and video decoding method 有权
标题翻译：视频编码器和视频编码方法以及视频解码器和视频解码方法
公开(公告)号：US09313496B2
公开(公告)日：2016-04-12
申请号：US14135731
申请日：2013-12-20
申请人： FUJITSU LIMITED
发明人： Hidenobu Miyoshi
IPC分类号： H04N19/577 , H04N19/52 , H04N19/91
CPC分类号： H04N19/577 , H04N19/52 , H04N19/91
摘要： A video encoder includes: a predictive vector selecting unit that selects candidates for a first predictive vector for predicting a motion vector in a first direction, and candidates for a second predictive vector for predicting a motion vector for a second direction; a selection information setting unit that sets first selection information for identifying the first predictive vector from among the first predictive vector candidates, and second selection information for identifying the second predictive vector from among the second predictive vector candidates; and a variable length coding unit that performs variable length coding on the first and second selection information. The video encoder applies predetermined code to the second selection information indicating that the second predictive vector candidate obtained from a motion vector in the second direction, for an encoded block corresponding to the first predictive vector is the second predictive vector.
摘要翻译：视频编码器包括：预测矢量选择单元，其选择用于预测第一方向上的运动矢量的第一预测矢量的候选，以及用于预测第二方向的运动矢量的第二预测矢量的候选; 选择信息设置单元，用于从第一预测向量候选中设置用于识别第一预测向量的第一选择信息，以及从第二预测向量候选中选择用于识别第二预测向量的第二选择信息; 以及对所述第一和第二选择信息执行可变长度编码的可变长度编码单元。视频编码器对第二选择信息应用预定代码，指示从对应于第一预测向量的编码块的第二方向获得的第二预测向量候选是第二预测向量。

10. 发明授权

US10958905B2 Information processing apparatus, moving image encoding method, and computer-readable recording medium recording moving image encoding program 有权
公开(公告)号：US10958905B2
公开(公告)日：2021-03-23
申请号：US16775310
申请日：2020-01-29
申请人： FUJITSU LIMITED
发明人： Xuying Lei , Hidenobu Miyoshi , Shunsuke Kobayashi , Kazuhiro Yamashita
IPC分类号： H04N7/12 , H04N19/115 , H04N19/146 , H04N19/177
摘要： An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: down-convert a moving image in units of structure of pictures (SOPs) divided in a time direction and precedingly execute encoding processing; calculate a target code amount of each processing unit included in the moving image in units of SOPs based on a result of the preceding encoding processing and calculate a temporal buffer position in a case where the encoding processing is executed on each processing unit based on the calculated target code amount; and calculate an error between an actual transmission buffer position and a temporal buffer position each time when the encoding processing is executed on each processing unit in the moving image in units of SOPs and correct a target code amount of each processing unit on which the encoding processing has not been executed yet.

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