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31. 发明授权

US08515062B2 Image encryption/decryption apparatus, method and program 有权
公开(公告)号：US08515062B2
公开(公告)日：2013-08-20
申请号：US12129266
申请日：2008-05-29
申请人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
发明人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
IPC分类号： G06F21/00
CPC分类号： G09C5/00
摘要： An image encryption apparatus encrypts a digital image by specifying a partial region from the digital image, converting the selected partial region into a processing image based on an encryption key, and specifying a position of the partial region by regularly converting a pixel value of the processing image.

32. 发明申请

US20100067706A1 IMAGE ENCRYPTING DEVICE, IMAGE DECRYPTING DEVICE AND METHOD 有权
标题翻译：图像加密设备，图像分解设备和方法
公开(公告)号：US20100067706A1
公开(公告)日：2010-03-18
申请号：US12623935
申请日：2009-11-23
申请人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
发明人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
IPC分类号： H04L9/14 , H04L9/08 , H04L9/30
CPC分类号： G09C5/00 , G06F21/608 , H04L9/0825 , H04L9/14 , H04L2209/88 , H04N1/4486
摘要： An encrypting device generates an encrypted image by converting an image of a specified region in an input image with an encryption key, by embedding information obtained by encrypting the encryption key with a public key pairing with the private key of a destination, and by performing pixel value conversion. Then, the encrypted image is transmitted to the destination as a printed matter or via a network. A decrypting device converts the encrypted image in the form of print data or electronic data into an image, and inputs it. Next, the decrypting device extracts a decryption key (the encryption key) from the image of the encryption region by executing a process reverse to that of the encrypting device for the encryption region of the converted encrypted image. Then, the decrypting device decrypts the original image of the encrypted region by using the decryption key, and restores the entire encrypted image.
摘要翻译：加密装置通过将通过用与目的地的私钥配对的公开密钥加密的加密密钥嵌入的信息嵌入到加密密钥的输入图像中的指定区域的图像来生成加密图像，并且通过执行像素价值转换。然后，将加密的图像作为打印物或经由网络发送到目的地。解密装置将打印数据或电子数据形式的加密图像转换为图像，并将其输入。接下来，解密装置通过执行与用于加密图像的加密区域的加密装置的处理相反的处理，从加密区域的图像中提取解密密钥（加密密钥）。然后，解密装置使用解密密钥对加密区域的原始图像进行解密，并恢复整个加密图像。

33. 发明授权

US08942413B2 Digital watermark embedding apparatus, digital watermark embedding method, and digital watermark detection apparatus 有权
标题翻译：数字水印嵌入装置，数字水印嵌入方法和数字水印检测装置
公开(公告)号：US08942413B2
公开(公告)日：2015-01-27
申请号：US13331220
申请日：2011-12-20
申请人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
发明人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
IPC分类号： G06K9/00 , G06K9/36 , H04N19/467 , H04N21/8358
CPC分类号： H04N19/467 , G06T1/0021 , G06T1/0085 , G06T2201/0051 , G06T2201/0061 , H04N21/8358
摘要： A digital watermark embedding apparatus includes an interface circuit which acquires video data and digital watermark information, and a processor which embeds the digital watermark information into the video data. The processor is adapted to, for each symbol contained in the digital watermark information, set a time segment, cause the area of a watermark pattern formed by a plurality of pixels having a prescribed value, and superimposed on each image contained in the video data, to vary in periodic fashion over time in the time segment according to the value of the symbol contained in the digital watermark information, and correct, using the prescribed value, the value of each pixel contained in a region where each image in the video data and the watermark pattern corresponding to that image overlap each other.
摘要翻译：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电路，以及将数字水印信息嵌入到视频数据中的处理器。处理器适用于对于包含在数字水印信息中的每个符号，设置时间段，使得由具有规定值的多个像素形成的水印图案的区域叠加在包含在视频数据中的每个图像上，根据包含在数字水印信息中的符号的值，在时间段中以时间段周期性地变化，并且使用规定的值来校正包含在视频数据中的每个图像的区域中的每个像素的值，以及对应于该图像的水印图案彼此重叠。

34. 发明授权

US08433067B2 Device, method, and program for image encryption/decryption 有权
标题翻译：用于图像加密/解密的设备，方法和程序
公开(公告)号：US08433067B2
公开(公告)日：2013-04-30
申请号：US12425977
申请日：2009-04-17
申请人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
发明人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
IPC分类号： H04N7/167 , H04N1/44
CPC分类号： G09C5/00 , H04N1/4486
摘要： In order to encrypt a part of an input image in such a manner that the encrypted part can be located for decryption, means for regularly converting pixel values in the area to be encrypted and generating a pattern unique to the pixel value conversion in order to encrypt the area to be encrypted; means for setting a specified positioning marker for locating an encryption position at two or more of the four corners of the area to be encrypted; and means for setting one or more checking marks for verifying appropriateness of a decrypted image in the encrypted area before the decryption are included.
摘要翻译：为了加密输入图像的一部分，使得加密部分可以被定位用于解密，用于定期转换要加密的区域中的像素值并产生像素值转换唯一的图案的装置，以加密要加密的区域; 用于设置指定的定位标记的装置，用于在要加密的区域的四个角中的两个或更多个角处定位加密位置; 以及用于设置用于验证解密之前的加密区域中的解密图像的适当性的一个或多个检验标记的装置。

35. 发明申请

US20090323950A1 Image encryption/decryption apparatus, method and program 有权
标题翻译：图像加密/解密装置，方法和程序
公开(公告)号：US20090323950A1
公开(公告)日：2009-12-31
申请号：US12129266
申请日：2008-05-29
申请人： Shohei NAKAGATA , Kensuke Kuraki , Taizo Anan
发明人： Shohei NAKAGATA , Kensuke Kuraki , Taizo Anan
IPC分类号： H04N1/44 , H04L9/28
CPC分类号： G09C5/00
摘要： An image encryption apparatus encrypts a digital image by specifying a partial region from the digital image, converting the selected partial region into a processing image based on an encryption key, and specifying a position of the partial region by regularly converting a pixel value of the processing image.
摘要翻译：图像加密装置通过从数字图像中指定部分区域来加密数字图像，并且基于加密密钥将所选择的部分区域转换为处理图像，并且通过定期地转换处理的像素值来指定部分区域的位置图片。

36. 发明申请

US20090262931A1 DEVICE, METHOD, AND PROGRAM FOR IMAGE ENCRYPTION/DECRYPTION 有权
标题翻译：图像加密/解码的设备，方法和程序
公开(公告)号：US20090262931A1
公开(公告)日：2009-10-22
申请号：US12425977
申请日：2009-04-17
申请人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
发明人： Shohei Nakagata , Kensuke Kuraki , Taizo Anan
IPC分类号： G09C5/00
CPC分类号： G09C5/00 , H04N1/4486
摘要： In order to encrypt a part of an input image in such a manner that the encrypted part can be located for decryption, means for regularly converting pixel values in the area to be encrypted and generating a pattern unique to the pixel value conversion in order to encrypt the area to be encrypted; means for setting a specified positioning marker for locating an encryption position at two or more of the four corners of the area to be encrypted; and means for setting one or more checking marks for verifying appropriateness of a decrypted image in the encrypted area before the decryption are included.
摘要翻译：为了加密输入图像的一部分，使得加密部分可以被定位用于解密，用于定期转换要加密的区域中的像素值并产生像素值转换唯一的图案的装置，以加密要加密的区域; 用于设置指定的定位标记的装置，用于在要加密的区域的四个角中的两个或更多个角处定位加密位置; 以及用于设置用于验证解密之前的加密区域中的解密图像的适当性的一个或多个检验标记的装置。

37. 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。

38. 发明授权

US08571212B2 Image encrypting device, image decrypting device and method 有权
标题翻译：图像加密装置，图像解密装置及方法
公开(公告)号：US08571212B2
公开(公告)日：2013-10-29
申请号：US12623935
申请日：2009-11-23
申请人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
发明人： Taizo Anan , Kensuke Kuraki , Shohei Nakagata
IPC分类号： H04L29/06
CPC分类号： G09C5/00 , G06F21/608 , H04L9/0825 , H04L9/14 , H04L2209/88 , H04N1/4486
摘要： An encrypting device generates an encrypted image by converting an image of a specified region in an input image with an encryption key, by embedding information obtained by encrypting the encryption key with a public key pairing with the private key of a destination, and by performing pixel value conversion. Then, the encrypted image is transmitted to the destination as a printed matter or via a network. A decrypting device converts the encrypted image in the form of print data or electronic data into an image, and inputs it. Next, the decrypting device extracts a decryption key (the encryption key) from the image of the encryption region by executing a process reverse to that of the encrypting device for the encryption region of the converted encrypted image. Then, the decrypting device decrypts the original image of the encrypted region by using the decryption key, and restores the entire encrypted image.
摘要翻译：加密装置通过将通过用与目的地的私钥配对的公开密钥加密的加密密钥嵌入的信息嵌入到加密密钥的输入图像中的指定区域的图像来生成加密图像，并且通过执行像素价值转换。然后，将加密的图像作为打印物或经由网络发送到目的地。解密装置将打印数据或电子数据形式的加密图像转换为图像，并将其输入。接下来，解密装置通过执行与用于加密图像的加密区域的加密装置的处理相反的处理，从加密区域的图像中提取解密密钥（加密密钥）。然后，解密装置使用解密密钥对加密区域的原始图像进行解密，并恢复整个加密图像。

39. 发明申请

US20130028465A1 DIGITAL WATERMARK EMBEDDING APPARATUS AND METHOD 有权
标题翻译：数字水印嵌入式设备及方法
公开(公告)号：US20130028465A1
公开(公告)日：2013-01-31
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： G06K9/00
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。

40. 发明申请

US20100074443A1 IMAGE ENCRYPTION AND IMAGE DECRYPTION APPARATUS AND METHOD 有权
标题翻译：图像加密和图像分解装置和方法
公开(公告)号：US20100074443A1
公开(公告)日：2010-03-25
申请号：US12626104
申请日：2009-11-25
申请人： Hideaki ISHII , Taizo Anan , Kensuke Kuraki , Shohei Nakagata
发明人： Hideaki ISHII , Taizo Anan , Kensuke Kuraki , Shohei Nakagata
IPC分类号： H04N1/44 , H04L9/00
CPC分类号： H04N1/32144 , G09C5/00 , H04N1/32272 , H04N1/4486
摘要： Input data is converted into an image, and in the input image, an encryption region that is a region in which the image is to be encrypted. Meanwhile, on the basis of an encryption key, encryption key-related information that is information related to the encryption key is generated, and the encryption key-related information is embedded into the image in the encryption region, to generate a first intermediate image. Next, the first intermediate image is converted on the basis of the encryption key, to generate a second intermediate image. Then, the pixel values of the second intermediate image are converted so that the position of the encryption region can be specified. As a result of the conversion, an encrypted image in which the part corresponding to the encryption region in the input image is generated.
摘要翻译：输入数据被转换为图像，并且在输入图像中，加密区域是图像要被加密的区域。同时，基于加密密钥，生成与加密密钥相关的信息的加密密钥相关信息，并且加密密钥相关信息被嵌入到加密区域中的图像中，以生成第一中间图像。接下来，基于加密密钥来转换第一中间图像，以生成第二中间图像。然后，转换第二中间图像的像素值，使得可以指定加密区域的位置。作为转换的结果，生成其中与输入图像中的加密区域相对应的部分被生成的加密图像。

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