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1. 发明申请

US20080298596A1 IMAGE ENCRYPTION/DECRYPTION SYSTEM 审中-公开
标题翻译：图像加密/分解系统
公开(公告)号：US20080298596A1
公开(公告)日：2008-12-04
申请号：US11755278
申请日：2007-05-30
申请人： Kensuke Kuraki , Hiroji Fukui , Taizo Anan , Shohei Nakagata
发明人： Kensuke Kuraki , Hiroji Fukui , Taizo Anan , Shohei Nakagata
IPC分类号： H04L9/08 , H04L9/14
CPC分类号： G09C5/00 , H04L9/083 , H04N1/4413 , H04N1/4426 , H04N1/444 , H04N1/4486
摘要： When decrypting an image of a part of a document that is encrypted and therefore illegible, a user uses a decryption apparatus 15 to read the document as an electronic image and also to receive a user authentication by accessing a key management server 11. Then, the user transmits a management number obtained from the image to the key management server 11 from the decryption apparatus 15. The key management server 11 extracts position information of the portion of the document that is encrypted and a decryption key for decrypting this portion from a key management database 13 and transmits the decryption key to the decryption apparatus 15. The decryption apparatus 15 processes the electronic image by using the position information and decryption key received from the key management server 11 so as to decrypt the encrypted part so that it is legible.
摘要翻译：当解密加密的文档的一部分的图像并且因此难以辨认时，用户使用解密装置15将文档读取为电子图像，并且还通过访问密钥管理服务器11来接收用户认证。然后，用户从解密装置15向密钥管理服务器11发送从图像获得的管理号码。密钥管理服务器11从密钥管理部分提取加密的文件的部分的位置信息和用于解密该部分的解密密钥数据库13并将解密密钥发送到解密装置15.解密装置15通过使用从密钥管理服务器11接收到的位置信息和解密密钥来处理电子图像，以便对加密部分进行解密，从而使其清晰。

2. 发明授权

US08843756B2 Image processing apparatus and image processing method 有权
标题翻译：图像处理装置和图像处理方法
公开(公告)号：US08843756B2
公开(公告)日：2014-09-23
申请号：US12292955
申请日：2008-12-01
申请人： Jun Takahashi , Shohei Nakagata , Kensuke Kuraki , Taizo Anan
发明人： Jun Takahashi , Shohei Nakagata , Kensuke Kuraki , Taizo Anan
IPC分类号： G06F21/00 , G06F11/07 , H04N3/14 , H04N5/232 , G06T7/20 , G06T7/00 , G06K9/00
CPC分类号： G06F21/00 , G06F11/0733 , G06K9/00 , G06T7/00 , G06T7/20 , H04N1/448 , H04N1/4486 , H04N3/155 , H04N5/23229 , H04N5/23254
摘要： An image processing apparatus sections an image to be processed into a plurality of blocks, rearranges the blocks into positions specified by an encryption key that uniquely specifies the positions of the blocks in the image, determines a computing method used to convert pixel values of pixels that form a minimum area included in each of the blocks after the blocks are rearranged based on the pixel values of predetermined pixels that do not belong to the minimum area, and converts the pixel values based on the computing method.
摘要翻译：图像处理装置将要处理的图像划分为多个块，将块重排为由唯一指定图像中的块的位置的加密密钥指定的位置，确定用于转换像素值的像素值的计算方法基于不属于最小区域的预定像素的像素值重新排列块之后，形成包括在每个块中的最小区域，并且基于计算方法转换像素值。

3. 发明授权

US08270037B2 Digital watermark embedding apparatus and digital watermark detecting apparatus 有权
标题翻译：数字水印嵌入装置和数字水印检测装置
公开(公告)号：US08270037B2
公开(公告)日：2012-09-18
申请号：US12403030
申请日：2009-03-12
申请人： Kensuke Kuraki , Shohei Nakagata , Hideaki Ishii , Motoo Masui , Taizo Anan
发明人： Kensuke Kuraki , Shohei Nakagata , Hideaki Ishii , Motoo Masui , Taizo Anan
IPC分类号： H04N1/40
CPC分类号： H04N1/387 , H04N1/32144 , H04N1/32203 , H04N1/32219 , H04N1/32229 , H04N1/40
摘要： A plurality of background texture patterns each of which includes a region not having a dot and having a feature different from those of the other background texture patterns, are combined, and information is embedded in a background region of a document image. Then, a mathematical-morphology-based conversion is performed on the document image, and thereby a feature of a region not having a dot in each of the background texture patterns is extracted in order to identify the embedded information.
摘要翻译：组合多个背景纹理图案，每个背景纹理图案包括不具有点并且具有与其他背景纹理图案的特征不同的特征的区域，并且将信息嵌入在文档图像的背景区域中。然后，对文档图像进行基于数学形态的转换，从而提取每个背景纹理图案中不具有点的区域的特征，以便识别嵌入的信息。

4. 发明申请

US20100158383A1 IMAGE MARKER ATTACHING APPARATUS AND METHOD 有权
标题翻译：图像标记附件和方法
公开(公告)号：US20100158383A1
公开(公告)日：2010-06-24
申请号：US12637256
申请日：2009-12-14
申请人： Kensuke KURAKI , Shohei Nakagata , Jun Takahashi , Taizo Anan
发明人： Kensuke KURAKI , Shohei Nakagata , Jun Takahashi , Taizo Anan
IPC分类号： G06K9/46
CPC分类号： G06T11/60 , G06K7/1439 , G09C5/00
摘要： A marker attaching apparatus attaches to an image a positioning marker for detecting a specific area in the image, and includes: an area size detection unit detecting a size of an area to which the positioning marker is attached; a marker adjustment unit adjusting the positioning marker depending on the detected size of the area; and a marker attaching unit attaching the adjusted positioning marker to the image.
摘要翻译：标记附着装置将图像附着到用于检测图像中的特定区域的定位标记，并且包括：区域尺寸检测单元，其检测定位标记附着的区域的大小; 标记调整单元，根据检测到的区域大小调整定位标记; 以及将调整后的定位标记附着到图像上的标记附着单元。

5. 发明申请

US20090214033A1 IMAGE ENCRYPTION APPARATUS AND IMAGE DECRYPTION APPARATUS 审中-公开
标题翻译：图像加密装置和图像分解装置
公开(公告)号：US20090214033A1
公开(公告)日：2009-08-27
申请号：US12338218
申请日：2008-12-18
申请人： Shohei Nakagata , Taizo Anan , Kensuke Kuraki , Jun Takahashi
发明人： Shohei Nakagata , Taizo Anan , Kensuke Kuraki , Jun Takahashi
IPC分类号： H04L9/14 , H04L9/00 , H04L9/16
CPC分类号： H04N1/4486 , G09C5/00 , H04L9/088 , H04N1/4413 , H04N1/4426
摘要： Area data indicating an encryption area of image data and level data indicating an authority level for the encryption area are received. Upon being triggered by an input password, an encryption key is generated for each received authority level. Check data to be detected in verifying whether or not the encrypted image data in the encryption area is appropriately decrypted through decryption is implanted in the encryption area. Image encryption is performed on the encryption area where the check data is implanted, by using the encryption key corresponding to the authority level designated for the encryption area. In decryption, all decryption keys corresponding to all authority levels lower than or equal to the set authority level are used to decrypt each encryption area and determines whether or not an appropriate decryption has been performed on the basis of the result of the detection of the check data.
摘要翻译：接收表示图像数据的加密区域和指示加密区域的权限级别的级数据的区域数据。由输入密码触发时，会为每个接收到的权限级别生成加密密钥。在验证加密区域中的加密图像数据是否通过解密适当地解密时，检查要检测的数据被植入加密区域。通过使用与为加密区域指定的授权级别相对应的加密密钥，在植入了检查数据的加密区域上执行图像加密。在解密中，使用与所设置的权限级别以下的所有权限级别相对应的所有解密密钥来解密每个加密区域，并根据检查结果确定是否已经执行了适当的解密数据。

6. 发明申请

US20080080009A1 ELECTRONIC WATERMARK EMBEDDING APPARATUS AND ELECTRONIC WATERMARK DETECTION APPARATUS 审中-公开
标题翻译：电子水印嵌入式设备和电子水印检测设备
公开(公告)号：US20080080009A1
公开(公告)日：2008-04-03
申请号：US11863606
申请日：2007-09-28
申请人： Motoo Masui , Kensuke Kuraki , Shohei Nakagata , Hideaki Ishii , Taizo Anan
发明人： Motoo Masui , Kensuke Kuraki , Shohei Nakagata , Hideaki Ishii , Taizo Anan
IPC分类号： G06K15/00
CPC分类号： H04N1/32309 , G06T1/0028 , G06T2201/0051 , H04N1/32229
摘要： An embedding area in which a background pattern can be embedded from the color document image is extracted. At least one of a color and a shape of a background pattern appropriate for the embedding area is determined depending on an area color of the embedding area. A background pattern image is generated by embedding watermark information in the embedding area using the determined background pattern.
摘要翻译：提取其中可以从彩色文档图像嵌入背景图案的嵌入区域。根据嵌入区域的区域颜色确定适合于嵌入区域的背景图案的颜色和形状中的至少一个。通过使用确定的背景图案在嵌入区域中嵌入水印信息来生成背景图案图像。

7. 发明授权

US08861781B2 Digital watermark embedding apparatus and method 有权
标题翻译：数字水印嵌入装置及方法
公开(公告)号：US08861781B2
公开(公告)日：2014-10-14
申请号：US13476137
申请日：2012-05-21
申请人： Kensuke Kuraki , Shohei Nakagata , Taizo Anan
发明人： Kensuke Kuraki , Shohei Nakagata , Taizo Anan
IPC分类号： G06T1/00
CPC分类号： G06T1/0085 , G06T2201/0051
摘要： An apparatus includes: a generator which generates a first pattern including a plurality of pixels having a first value, with an area of the first pattern changing in a constant cycle, and, a phase of cyclical change of the area changing based on a value of a symbol included in an inputted digital watermark information; a generator which generates a second pattern including a plurality of pixels having a second value, with an area of the second pattern changing with a frequency characteristic that is different from the cycle of change of the area; and a unit which superimposes the first and the second pattern into each image area of images in time series constituting an inputted video image to correct a value of each pixel in an image area to which the first or the second pattern is superimposed according to the first and the second value.
摘要翻译：一种装置包括：发生器，其生成包括具有第一值的多个像素的第一图案，其中第一图案的区域以恒定周期改变，并且基于值的周期性变化的相位包括在输入的数字水印信息中的符号; 发生器，其生成包括具有第二值的多个像素的第二图案，其中所述第二图案的区域以与所述区域的变化周期不同的频率特性改变; 以及将第一和第二图案叠加在构成输入视频图像的时间序列的图像的每个图像区域中的单元，以根据第一和第二图案校正重叠了第一或第二图案的图像区域中的每个像素的值和第二个值。

8. 发明授权

US08339677B2 Image processing system, image processing apparatus, and image processing method 有权
标题翻译：图像处理系统，图像处理装置和图像处理方法
公开(公告)号：US08339677B2
公开(公告)日：2012-12-25
申请号：US13164851
申请日：2011-06-21
申请人： Shohei Nakagata , Kensuke Kuraki , Jun Takahashi , Taizo Anan
发明人： Shohei Nakagata , Kensuke Kuraki , Jun Takahashi , Taizo Anan
IPC分类号： H04N1/409
CPC分类号： G09C5/00 , G06T5/006 , G06T5/30 , G06T2207/10008 , G06T2207/20036 , H04L9/00
摘要： An image processing system includes: an image input unit which reads an image printed on a medium and generates electronic data representing the image; and a processing unit which corrects the image represented by the electronic data. The processing unit implements the functions of: detecting, from the image represented by the electronic data, a first pattern having a first size and shape that is attached to the image; measuring a degree of degradation by measuring an amount of displacement of the size of the detected first pattern from the first size; and correcting the image represented by the electronic data to reduce the degree of degradation.
摘要翻译：一种图像处理系统，包括：图像输入单元，读取打印在介质上的图像，并生成表示图像的电子数据; 以及处理单元，其校正由电子数据表示的图像。处理单元实现以下功能：从由电子数据表示的图像中检测具有附接到图像的第一尺寸和形状的第一图案; 通过从所述第一尺寸测量检测到的第一图案的尺寸的位移量来测量劣化程度; 并且校正由电子数据表示的图像以降低劣化程度。

9. 发明申请

US20120163583A1 DIGITAL WATERMARK EMBEDDING DEVICE, COMPUTER-READABLE RECORDING MEDIUM, AND DIGITAL WATERMARK DETECTING DEVICE AND COMPUTER-READABLE RECORDING MEDIUM 有权
标题翻译：数字水印嵌入式设备，计算机可读记录介质和数字水印检测设备和计算机可读记录介质
公开(公告)号：US20120163583A1
公开(公告)日：2012-06-28
申请号：US13296976
申请日：2011-11-15
申请人： Shohei NAKAGATA , Kensuke Kuraki , Jun Takahashi , Taizo Anan
发明人： Shohei NAKAGATA , Kensuke Kuraki , Jun Takahashi , Taizo Anan
IPC分类号： H04L9/28
CPC分类号： H04L9/3226 , G06T1/0085 , G06T2201/0051 , G06T2201/0063 , G10L19/018 , H04L2209/608 , H04N1/32149 , H04N2201/3236 , H04N2201/324 , H04N2201/3284
摘要： An digital watermark embedding device including an interface unit configured to acquire content in a digital form and digital watermark information, the device includes, a codeword generating unit configured to generate a base codeword including a bit sequence including the digital watermark information; a shifting unit configured to generate a plurality of correcting codewords differing from one another by permutating an arrangement in the bit sequence included in the base codeword depending on a plurality of shift amounts, the plurality of shift amounts differing from one digital watermark information to another, under a predetermined permutation rule; and a watermark superimposing unit configured to embed the plurality of correcting codewords in the content.
摘要翻译：一种数字水印嵌入装置，包括被配置为以数字形式获取内容的接口单元和数字水印信息，所述装置包括：码字生成单元，被配置为生成包括包含所述数字水印信息的比特序列的基本码字; 移位单元，被配置为通过根据多个移位量排列包括在基本码字中的比特序列中的布置来生成彼此不同的多个校正码字，所述多个移位量与一个数字水印信息不同，在预定的排列规则下; 以及水印叠加单元，被配置为将所述多个校正码字嵌入在所述内容中。

10. 发明授权

US08170208B2 Image decrypting apparatus, image encrypting apparatus, and image decrypting method 有权
标题翻译：图像解密装置，图像加密装置和图像解密方法
公开(公告)号：US08170208B2
公开(公告)日：2012-05-01
申请号：US12232901
申请日：2008-09-25
申请人： Kensuke Kuraki , Jun Takahashi , Shohei Nakagata , Taizo Anan
发明人： Kensuke Kuraki , Jun Takahashi , Shohei Nakagata , Taizo Anan
IPC分类号： G06F21/00 , G09C5/00
CPC分类号： H04N1/44
摘要： When a decrypting apparatus receives an encrypted image, the apparatus detects the state of the encrypted image and determines whether the encrypted image is an image passed through only a digital medium or an analog medium, according to the state of the encrypted image. When the encrypted image is determined to be the image passed through only the digital medium, the decrypting apparatus switches to perform a digital decryption process and, when the encrypted image is determined to be the image passed through the analog medium, the decrypting apparatus switches to perform an analog decryption process.
摘要翻译：当解密装置接收加密图像时，根据加密图像的状态，该装置检测加密图像的状态，并根据加密图像的状态确定加密图像是仅通过数字媒体或模拟媒体的图像。当加密图像被确定为仅通过数字媒体的图像时，解密装置切换到执行数字解密处理，并且当加密图像被确定为通过模拟媒体的图像时，解密装置切换到执行模拟解密过程。

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