公开(公告)号：US09129184B2

公开(公告)日：2015-09-08

申请号：US14032532

申请日：2013-09-20

Applicant: FUJITSU LIMITED

Inventor： Jun Takahashi ,  Hiroshi Iwanaga ,  Kensuke Kuraki ,  Shohei Nakagata ,  Taizo Anan

IPC: G06K9/36 ,  H04N21/44 ,  H04N21/4405 ,  H04N21/835 ,  H04N1/32 ,  G06T1/00

CPC classification number: G06K9/36 ,  G06T1/0028 ,  G06T2201/0201 ,  G06T2201/0202 ,  H04N1/32224 ,  H04N1/32352 ,  H04N21/44008 ,  H04N21/4405 ,  H04N21/44055 ,  H04N21/835

Abstract: An image processor includes an image degradation measuring unit configured to compute a degradation level of block data with respect to each of blocks within an image, a degradation determining unit configured to select, with respect to each of the blocks within the image, the block data of a target block of one of a plurality of the images based on degradation levels of respective block data of the target blocks of the plurality of the images, and an image synthesis unit configured to generate a sheet of an image by synthesizing the block data selected with respect to the blocks within the image.

Abstract translation: 图像处理器包括：图像劣化测量单元，被配置为针对图像中的每个块计算块数据的劣化水平;劣化确定单元，被配置为针对图像中的每个块选择块数据 基于多个图像中的目标块的各个块数据的劣化程度，对多个图像中的一个图像的目标块进行合成;图像合成单元，被配置为通过合成所选择的块数据来生成图像片段 相对于图像中的块。

公开(公告)号：US09141861B2

公开(公告)日：2015-09-22

申请号：US14075268

申请日：2013-11-08

Applicant: FUJITSU LIMITED

Inventor： Shohei Nakagata ,  Taizo Anan

IPC: G06K9/46 ,  G06K9/00 ,  G06F17/30

CPC classification number: G06K9/00758 ,  G06F17/30784 ,  G06K9/00744

Abstract: A video image feature generation system includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, extracting a frame feature value featuring a frame, which is a unit of an input video image, based on a pixel value of the frame; and generating a phase of each frequency as a video image feature based on at least two frequencies, the frame feature value obtained in the extracting, and generation information for generating phases of the frequencies according to the frequencies and the frame feature value.

Abstract translation: 视频图像特征生成系统包括处理器; 以及存储器，其存储多个指令，当所述处理器执行时，使所述处理器执行，基于所述帧的像素值提取作为输入视频图像的单位的特征帧的帧特征值 ; 以及基于至少两个频率，在提取中获得的帧特征值和根据频率和帧特征值产生频率相位的生成信息，生成每个频率的相位作为视频图像特征。

公开(公告)号：US09014418B2

公开(公告)日：2015-04-21

申请号：US13659490

申请日：2012-10-24

Applicant: Fujitsu Limited

Inventor： Shohei Nakagata ,  Taizo Anan

IPC: G06K9/00 ,  G06T1/00 ,  H04L9/08 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15

CPC classification number: G06T1/005 ,  G06T2201/0063 ,  H03M13/09 ,  H03M13/11 ,  H03M13/1515 ,  H04L9/0869 ,  H04L2209/608

Abstract: A digital watermark embedding apparatus is disclosed. A first codeword including a bit sequence of digital watermark information is generated. A cyclic shift sequence is generated based on the digital watermark information. A second codeword is generated by cyclically shifting the first codeword based on the generated cyclic shift sequence. The generated second codeword is embedded in contents.

Abstract translation: 公开了一种电子水印嵌入装置。 生成包括数字水印信息的位序列的第一码字。 基于数字水印信息生成循环移位序列。 通过基于所生成的循环移位序列循环移位第一码字来产生第二码字。 所生成的第二码字被嵌入到内容中。

公开(公告)号：US08712094B2

公开(公告)日：2014-04-29

申请号：US13775850

申请日：2013-02-25

Applicant: Fujitsu Limited

Inventor： Taizo Anan ,  Kensuke Kuraki ,  Shohei Nakagata ,  Jun Takahashi

IPC: G06K9/00

CPC classification number: G06T1/0021 ,  G06T1/0085 ,  G06T2201/0051 ,  H04N19/467

Abstract: A digital watermark embedding apparatus includes an interface unit which acquires video data and digital watermark information, and a processing unit which embeds the digital watermark information into the video data. The processing unit is adapted to: determine the position of a watermark pattern so that the watermark pattern moves with time according to the value of a symbol contained in the digital watermark information within a first moving range that contains at least a portion of a reference region on each image, and so that the average pixel value of the reference region overlapped with the watermark pattern varies in a periodic fashion as the watermark pattern moves; and correct the value of each pixel contained in a region where the reference region and the watermark pattern overlap each other by using the value of a corresponding one of the pixels contained in the watermark pattern.

Abstract translation: 数字水印嵌入装置包括：获取视频数据和数字水印信息的接口单元;以及将数字水印信息嵌入到视频数据中的处理单元。 所述处理单元适于：确定水印图案的位置，使得所述水印图案随着包含在包含参考区域的至少一部分的第一移动范围内的数字水印信息中包含的符号的值随时间移动 使得与水印图案重叠的参考区域的平均像素值随水印图案移动而以周期性方式变化; 并且通过使用包含在水印图案中的对应的一个像素的值来校正包含在参考区域和水印图案彼此重叠的区域中的每个像素的值。

公开(公告)号：US20130251143A1

公开(公告)日：2013-09-26

申请号：US13850001

申请日：2013-03-25

Applicant: FUJITSU LIMITED

Inventor： Shohei NAKAGATA ,  Jun Takahashi ,  Taizo Anan ,  Kensuke Kuraki

IPC: H04L9/28

CPC classification number: H04L9/28 ,  G06F21/6209 ,  G06F21/6272 ,  G06F2221/2117 ,  H04L9/0861 ,  H04L9/088 ,  H04N1/4486

Abstract: An image encryption system includes an encrypter configured to generate an encrypted image including an encrypted area by encrypting a partial area of an input image; an identification information generator configured to generate identification information for identifying the encrypted area based on an image of the encrypted area; and a registration unit configured to register the identification information and a decryption key for decrypting the encrypted area by making an association between the identification information and the decryption key.

Abstract translation: 图像加密系统包括：加密器，被配置为通过加密输入图像的部分区域来生成包括加密区域的加密图像; 识别信息生成器，被配置为基于加密区域的图像生成用于识别加密区域的标识信息; 以及注册单元，被配置为通过在所述识别信息和所述解密密钥之间进行关联来登记所述识别信息和用于解密所述加密区域的解密密钥。

公开(公告)号：US20130208802A1

公开(公告)日：2013-08-15

申请号：US13851470

申请日：2013-03-27

Applicant: Fujitsu Limited

Inventor： Akira NAKAGAWA ,  Taizo Anan ,  Eishi Morimatsu ,  Takashi Itoh

IPC: H04N7/26

CPC classification number: H04N19/00587 ,  H04N19/105 ,  H04N19/12 ,  H04N19/13 ,  H04N19/137 ,  H04N19/15 ,  H04N19/176 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

Abstract: A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

公开(公告)号：US20130136296A1

公开(公告)日：2013-05-30

申请号：US13659490

申请日：2012-10-24

Applicant: FUJITSU LIMITED

Inventor： Shohei Nakagata ,  Taizo Anan

IPC: G06K9/00

CPC classification number: G06T1/005 ,  G06T2201/0063 ,  H03M13/09 ,  H03M13/11 ,  H03M13/1515 ,  H04L9/0869 ,  H04L2209/608

Abstract: A digital watermark embedding apparatus is disclosed. A first codeword including a bit sequence of digital watermark information is generated. A cyclic shift sequence is generated based on the digital watermark information. A second codeword is generated by cyclically shifting the first codeword based on the generated cyclic shift sequence. The generated second codeword is embedded in contents.

Abstract translation: 公开了一种电子水印嵌入装置。 生成包括数字水印信息的位序列的第一码字。 基于数字水印信息生成循环移位序列。 通过基于所生成的循环移位序列循环移位第一码字来产生第二码字。 所生成的第二码字被嵌入到内容中。

公开(公告)号：US09607348B2

公开(公告)日：2017-03-28

申请号：US14990480

申请日：2016-01-07

Applicant: FUJITSU LIMITED

Inventor： Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

IPC: G06T1/00 ,  H04N21/2343 ,  H04N21/8358 ,  H04N19/467 ,  G06K9/00

CPC classification number: G06T1/0021 ,  G06K9/00711 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0065 ,  G06T2201/0601 ,  H04N19/467 ,  H04N21/234345 ,  H04N21/8358

Abstract: A position information adding apparatus includes: a reference position setting unit which sets a plurality of reference positions for each of a plurality of pictures contained in digitalized video data; a region setting unit which sets a first position information adding region at a first position defined based on at least any of the plurality of reference positions and a second position information adding region at a second position different from the first position, for each of the plurality of pictures; and a position information embedding unit which embeds a first moving pattern which moves on the pictures in a first temporal period into the first position information adding region and a second moving pattern which moves on the pictures in a second temporal period into the second position information adding region.

公开(公告)号：US09582842B2

公开(公告)日：2017-02-28

申请号：US14032735

申请日：2013-09-20

Applicant: FUJITSU LIMITED

Inventor： Shohei Nakagata ,  Kensuke Kuraki ,  Jun Takahashi ,  Taizo Anan

IPC: G06T1/00 ,  H04N21/2343 ,  H04N21/8358 ,  H04N19/467 ,  G06K9/00

CPC classification number: G06T1/0021 ,  G06K9/00711 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0065 ,  G06T2201/0601 ,  H04N19/467 ,  H04N21/234345 ,  H04N21/8358

Abstract: A position information adding apparatus includes: a reference position setting unit which sets a plurality of reference positions for each of a plurality of pictures contained in digitalized video data; a region setting unit which sets a first position information adding region at a first position defined based on at least any of the plurality of reference positions and a second position information adding region at a second position different from the first position, for each of the plurality of pictures; and a position information embedding unit which embeds a first moving pattern which moves on the pictures in a first temporal period into the first position information adding region and a second moving pattern which moves on the pictures in a second temporal period into the second position information adding region.

Abstract translation: 一种位置信息添加装置，包括：参考位置设定单元，对包含在数字化视频数据中的多个图像中的每一个设置多个参考位置; 区域设定单元，对于所述多个基准位置中的至少一个，基于所述多个基准位置中的至少任一个限定的第一位置和与所述第一位置不同的第二位置处的第二位置信息添加区域设定第一位置信息附加区域 的图片; 以及位置信息嵌入单元，其将在第一时间周期中的图像上移动的第一移动图案嵌入到第一时间周期中的图像上移动到第一位置信息添加区域中的第二移动图案和第二位置信息添加 地区。

公开(公告)号：US09094204B2

公开(公告)日：2015-07-28

申请号：US13850001

申请日：2013-03-25

Applicant: FUJITSU LIMITED

Inventor： Shohei Nakagata ,  Jun Takahashi ,  Taizo Anan ,  Kensuke Kuraki

IPC: H04L9/28 ,  G06F21/62 ,  H04L9/08 ,  H04N1/44

CPC classification number: H04L9/28 ,  G06F21/6209 ,  G06F21/6272 ,  G06F2221/2117 ,  H04L9/0861 ,  H04L9/088 ,  H04N1/4486

Abstract: An image encryption system includes an encrypter configured to generate an encrypted image including an encrypted area by encrypting a partial area of an input image; an identification information generator configured to generate identification information for identifying the encrypted area based on an image of the encrypted area; and a registration unit configured to register the identification information and a decryption key for decrypting the encrypted area by making an association between the identification information and the decryption key.

Abstract translation: 图像加密系统包括：加密器，被配置为通过加密输入图像的部分区域来生成包括加密区域的加密图像; 识别信息生成器，被配置为基于加密区域的图像生成用于识别加密区域的标识信息; 以及注册单元，被配置为通过在所述识别信息和所述解密密钥之间进行关联来登记所述识别信息和用于解密所述加密区域的解密密钥。