公开(公告)号：US07447314B2

公开(公告)日：2008-11-04

申请号：US10965874

申请日：2004-10-18

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: G06K9/36

CPC classification number: H04K1/00 ,  H04L9/0872 ,  H04N1/4486 ,  H04N19/63 ,  H04N21/23476 ,  H04N21/26613 ,  H04N21/44055

Abstract: A bitstream of each tile in a code sequence is segmented into bitstreams for respective resolution levels (S70). Image key K_I is generated (S71). Bitstream key K_BS is generated from image key K_I using encoding parameters P (S72). Key K_Ti of tile Ti is generated from bitstream key K_BS using information associated with that tile (S74). Finally, keys corresponding to the segmented bitstreams indicating respective resolutions in tile Ti are generated (S76).

Abstract translation: 代码序列中的每个瓦片的比特流被分段成用于各自的分辨率级别的比特流（S70）。 生成图像密钥K_I（S71）。 使用编码参数P从图像密钥K_I生成比特流密钥K_BS（S72）。 使用与该瓦片相关联的信息从比特流密钥K_BS生成瓦片Ti的密钥K_Ti（S74）。 最后，产生与分段位流相对应的键，指示瓦片Ti中的各自的分辨率（S76）。

公开(公告)号：US20080175431A1

公开(公告)日：2008-07-24

申请号：US11720958

申请日：2006-01-25

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: G06K9/00 ,  H04L9/00 ,  H04N1/40

CPC classification number: G06T1/0028 ,  G06F21/64 ,  H04N1/32144 ,  H04N2201/3226 ,  H04N2201/3236

Abstract: A partial data acquisition unit acquires partial data included in digital data, a partial data specifying information acquisition unit acquires specifying information for the partial data, a combining unit combines the partial data and the specifying information, and a verification data generation unit generates verification data. Thus, it is possible to verify whether or not region data in image data has been altered. In addition, it is possible to verify that the region data is the region data in image data different from the original image data, and/or, it is possible to further verify that the region data is the different region data included in the original image data.

Abstract translation: 部分数据获取单元获取包括在数字数据中的部分数据，部分数据指定信息获取单元获取部分数据的指定信息，组合单元组合部分数据和指定信息，验证数据生成单元生成验证数据。 因此，可以验证图像数据中的区域数据是否已被改变。 此外，可以验证区域数据是与原始图像数据不同的图像数据中的区域数据，和/或可以进一步验证区域数据是包括在原始图像中的不同区域数据 数据。

公开(公告)号：US07356148B2

公开(公告)日：2008-04-08

申请号：US10686577

申请日：2003-10-17

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: H04L9/00 ,  G06K9/36 ,  G06K9/46

CPC classification number: H04L9/0836

Abstract: Image data encoded in units of a tile is processed to define a hierarchical structure by repeatedly forming one tile group from adjacent tiles and another tile group from adjacent tile groups. Plural partially encoded data a tile located at a terminal of the hierarchical structure are arranged in ascending order of priority of decryption to define a tree having as nodes tile groups, tiles, and partially encoded data. Encryption key information is generated for a node located at an uppermost layer of the tree and, up to a node located at a terminal, encryption key information is generated for a node of interest based on encryption key information for a node at an upper layer. When a node of partially encoded data is designated as an object to be encrypted, partially encoded data at a higher layer containing the designated object is set as an object to be encrypted.

Abstract translation: 处理以瓦片为单位编码的图像数据被处理以通过从相邻瓦片重复地形成一个瓦片组并且从相邻瓦片组重新形成另一瓦片组来定义分层结构。 位于层次结构的终端的瓦片的多个部分编码的数据按照解密优先级的升序排列，以定义具有节点瓦片组，瓦片和部分编码数据的树。 为位于树的最上层的节点生成加密密钥信息，并且直到位于终端的节点，基于用于上层的节点的加密密钥信息为感兴趣的节点生成加密密钥信息。 当将部分编码数据的节点指定为要加密的对象时，将包含指定对象的较高层的部分编码数据设置为要加密的对象。

公开(公告)号：US07167988B2

公开(公告)日：2007-01-23

申请号：US10465615

申请日：2003-06-20

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: G06F11/30

CPC classification number: H04N1/32101 ,  H04L9/3236 ,  H04L9/3247 ,  H04L2209/30 ,  H04N2201/3235 ,  H04N2201/3236

Abstract: A code stream and data indicating a normalization method are inputted to a normalization processing unit 21, and the normalization processing unit applies normalization processing to the code stream to generate a normalized code stream. Next, when signature data is inputted, a verification processing unit 22 performs encryption and decryption processing with respect to the signature data using a public key Kp and calculates a Hash value (first Hash value) and, on the other hand, calculates a Hash value of the normalized code stream (second Hash value). Next, the verification processing unit compares the first Hash value and the second Hash value and, if the first Hash value and the second Hash value are equal, judges that the code stream is not falsified. On the other hand, if the first Hash value and the second Hash value are not equal, the verification processing unit judges that the code stream is falsified.

Abstract translation: 代码流和指示归一化方法的数据被输入到归一化处理单元21，归一化处理单元对代码流进行归一化处理以生成归一化代码流。 接下来，当输入签名数据时，验证处理单元22使用公共密钥Kp对签名数据执行加密和解密处理，并计算哈希值（第一哈希值），另一方面，计算哈希值 的归一化代码流（第二哈希值）。 接下来，验证处理单元比较第一哈希值和第二哈希值，并且如果第一哈希值和第二哈希值相等，则判断代码流不被伪造。 另一方面，如果第一哈希值和第二哈希值不相等，则验证处理单元判断代码流是伪造的。

公开(公告)号：US20060033942A1

公开(公告)日：2006-02-16

申请号：US11251796

申请日：2005-10-18

Applicant: Takeshi Yamazaki ,  Junichi Hayashi ,  Tomochika Murakami

Inventor： Takeshi Yamazaki ,  Junichi Hayashi ,  Tomochika Murakami

IPC: G06K15/00 ,  H04N1/60

CPC classification number: G03G21/046 ,  H04N1/00843 ,  H04N1/00848 ,  H04N1/00859 ,  H04N1/00875

Abstract: An input step of inputting image information according to an image and a judgment step of judging, for each image data corresponding a predetermined-sized block area in the image information input in the input step, whether or not the image data is a part of a specific image are provided. Further, in the judgment step, the judgment is performed not to the entire image information input in the input step but to a part of the image information.

Abstract translation: 根据图像输入图像信息的输入步骤和判断步骤，对于在输入步骤中输入的图像信息中对应于预定大小的块区域的每个图像数据，判断图像数据是否为 提供了具体的图像。 此外，在判断步骤中，不执行输入步骤中输入的整个图像信息，而是对图像信息的一部分进行判断。

公开(公告)号：US20060020809A1

公开(公告)日：2006-01-26

申请号：US11223949

申请日：2005-09-13

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: H04L9/00

CPC classification number: G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065

Abstract: The present invention has an object to provide a data processing apparatus which can perform digital watermark embedding/extraction in accordance with manipulation, editing, and compression. To achieve the object, the data processing apparatus for performing compression processing on digital data comprises: a digital watermark extracting device extracting additional information, embedded as a digital watermark, from digital data; a digital watermark removing device removing the additional information, embedded as a digital watermark, from the digital data; an irreversible processing deice performing irreversible processing on the digital data; and a digital watermark embedding device embedding the additional information as a digital watermark in the irreversible-processed digital data.

公开(公告)号：US20050018844A1

公开(公告)日：2005-01-27

申请号：US10877665

申请日：2004-06-25

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: G09C1/00 ,  H03M7/30 ,  H04N1/41 ,  H04N1/44 ,  H04N7/167 ,  H04N19/34 ,  H04N19/40 ,  H04N19/467 ,  H04N19/60 ,  H04N19/63 ,  H04N19/91 ,  H04N21/2343 ,  H04N21/2662

CPC classification number: H04N21/4405 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/26613 ,  H04N21/472 ,  H04N21/6125 ,  H04N21/63345 ,  H04N21/8153 ,  H04N21/8193

Abstract: An encryption technique and a decryption technique that are applied to video data that is encrypted on a predetermined domain of compressed video data are disclosed. For example, JPEG2000 compressed video data can be compressed using a wavelet conversion. Compressed video data is input. The input video data is decompressed to a predetermined domain of the compression process, and the decompressed video data is then encrypted. The encrypted video data is then compressed in accordance with the decompression process, and information representing the encrypted compression domain is stored in a predetermined area of the compressed video data.

Abstract translation: 公开了一种应用于在压缩视频数据的预定域上加密的视频数据的加密技术和解密技术。 例如，可以使用小波转换来压缩JPEG2000压缩视频数据。 压缩视频数据被输入。 将输入视频数据解压缩到压缩处理的预定域，然后对解压缩的视频数据进行加密。 然后根据解压缩处理来压缩加密的视频数据，并且表示加密压缩域的信息被存储在压缩视频数据的预定区域中。

公开(公告)号：US06434253B1

公开(公告)日：2002-08-13

申请号：US09238570

申请日：1999-01-28

Applicant: Junichi Hayashi ,  Keiichi Iwamura

Inventor： Junichi Hayashi ,  Keiichi Iwamura

IPC: G06K900

CPC classification number: H04N19/467 ,  G06T1/0035 ,  G06T2201/0052 ,  H04N1/32154 ,  H04N1/3216 ,  H04N1/32165 ,  H04N1/3217 ,  H04N1/32187 ,  H04N1/32277 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/328

Abstract: It is an object of this invention to efficiently embed digital watermark information in the above image or audio data. In order to achieve this object, there is provided a data processing apparatus comprising input means for inputting digital data including at least one of image data and audio data, transforming means for transforming a data format of the digital data, compression means for compressing the digital data whose data format has been transformed by the transforming means, and embedding means for embedding digital watermark information in the digital data whose data format has been transformed by the transforming means, wherein the apparatus includes a plurality of image processing modes, compresses the digital data by using the transforming means and the compression means in a first mode, and embeds digital watermark information in the digital data by using the transforming means and the embedding means in a second mode.

Abstract translation: 本发明的目的是有效地将数字水印信息嵌入到上述图像或音频数据中。 为了实现该目的，提供了一种数据处理装置，包括用于输入包括图像数据和音频数据中的至少一个的数字数据的输入装置，用于变换数字数据的数据格式的变换装置，用于压缩数字数据的压缩装置 数据格式已由变换装置变换的数据，以及嵌入装置，用于将数字水印信息嵌入数据格式已被变换装置变换的数字数据中，其中，该装置包括多个图像处理模式，压缩数字数据 通过在第一模式中使用变换装置和压缩装置，并且在第二模式中通过使用变换装置和嵌入装置将数字水印信息嵌入数字数据。

公开(公告)号：US09597767B2

公开(公告)日：2017-03-21

申请号：US13433883

申请日：2012-03-29

Applicant: Hideki Ishigami ,  Hidefumi Nakamura ,  Junichi Hayashi

Inventor： Hideki Ishigami ,  Hidefumi Nakamura ,  Junichi Hayashi

IPC: B24B1/00 ,  C09K3/14 ,  B24B31/02 ,  B22F3/22 ,  C22C1/10 ,  C22C27/04

CPC classification number: B24B31/02 ,  B22F3/225 ,  B22F2998/10 ,  C22C1/1084 ,  C22C27/04 ,  B22F3/20 ,  B22F3/10 ,  B22F3/24 ,  C22C1/1094

Abstract: A polishing media is formed of a sintered body in which a metal structure and a ceramic structure are intermingled with each other. The polishing media is preferably produced by molding a mixed powder of a metal powder and a ceramic powder by an injection molding method and sintering the resulting molded article. Further, the ceramic structure is preferably formed of aluminum oxide, and the metal structure is preferably formed of tungsten.

公开(公告)号：US08396288B2

公开(公告)日：2013-03-12

申请号：US12489338

申请日：2009-06-22

Applicant: Junichi Hayashi

Inventor： Junichi Hayashi

IPC: G06K9/00 ,  H04L9/32

CPC classification number: H04N1/00002 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0201 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/00047 ,  H04N1/00076 ,  H04N1/32101 ,  H04N2101/00 ,  H04N2201/3236

Abstract: An information processing apparatus inputs image data and calculates a relative magnitude between coefficient or pixel values of the input image data. The image processing apparatus generates verification data of the image data using the calculated relative magnitude.

Abstract translation: 信息处理装置输入图像数据并计算输入图像数据的系数或像素值之间的相对幅度。 图像处理装置使用所计算的相对幅度生成图像数据的验证数据。