公开(公告)号：US6078330A

公开(公告)日：2000-06-20

申请号：US132943

申请日：1993-10-07

申请人： Hiroshi Masuda ,  Masayuki Numao ,  Shuichi Shimizu

发明人： Hiroshi Masuda ,  Masayuki Numao ,  Shuichi Shimizu

IPC分类号： G06F17/50 ,  G06T15/00 ,  G06T17/10 ,  G06T15/70

CPC分类号： G06T17/10

摘要： To simplify the solid model selection work of the user. An image processing unit prepares a cell decomposition model from three orthographic view data, a link of individual cells C1, C2, C3, C4, . . . in the prepared cell decomposition model is detailed referring to lines E1, . . . represented on the three orthographic views, and a solid model is constructed according to a non-conflicting cell combination.

摘要翻译： 简化用户的实体模型选择工作。 图像处理单元从三个正交视图数据，单个单元C1，C2，C3，C4的链接准备单元分解模型。 。 。 在准备的细胞分解模型中详细参考线E1，。 。 。 在三个正交视图上表示，并且根据非冲突的单元格组合构建实体模型。

公开(公告)号：US6055321A

公开(公告)日：2000-04-25

申请号：US867996

申请日：1997-06-03

申请人： Masayuki Numao ,  Shuichi Shimizu ,  Norishige Morimoto ,  Mei Kobayashi

发明人： Masayuki Numao ,  Shuichi Shimizu ,  Norishige Morimoto ,  Mei Kobayashi

IPC分类号： G06T1/00 ,  G09C5/00 ,  H04N1/32 ,  H04N1/44 ,  G06T9/00

CPC分类号： H04N1/32203 ,  G06T1/0021 ,  G09C5/00 ,  H04N1/32208 ,  H04N1/32251 ,  H04N1/32309 ,  H04N21/23892 ,  H04N21/8358 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N2201/3233 ,  H04N2201/327

摘要： The present invention provides a data hiding method of hiding media data in message data and a data extraction method of extracting the hidden data wherein message data is dispersively hidden in media data such as an image or sound to prevent a third person from modifying the message data easily.More specifically, the present invention relates to a data hiding method in which media data is expressed as a media array while message data is expressed as a message array so that the array elements of the message array can be dispersively hidden in the message array based on a state values specifying a particular array element of the media array, comprising the steps of:(a) determining the j-th (j.gtoreq.0) state value S.sub.j ;(b) determining (j+1)-th state value S.sub.j+1 based on the j-th state value, the array element of the media array indicated by the j-th state value, and the array element of the message array; and(c) hiding data with respect to the array element of the media array indicated by the (j+1)-th state value S.sub.j+1.

摘要翻译： 本发明提供一种在消息数据中隐藏媒体数据的数据隐藏方法和提取隐藏数据的数据提取方法，其中消息数据被分散地隐藏在诸如图像或声音的媒体数据中，以防止第三人修改消息数据 容易。 更具体地，本发明涉及一种数据隐藏方法，其中媒体数据被表示为媒体阵列，而消息数据被表示为消息数组，使得消息数组的数组元素可以基于 指定媒体阵列的特定阵列元素的状态值，包括以下步骤：（a）确定第j（j> / = 0）状态值Sj; （b）基于第j个状态值确定第（j + 1）状态值Sj + 1，由第j个状态值指示的媒体阵列的数组元素和消息数组的数组元素; 和（c）隐藏相对于由第（j + 1）状态值Sj + 1指示的媒体阵列的数组元素的数据。

公开(公告)号：US06512835B1

公开(公告)日：2003-01-28

申请号：US09480024

申请日：2000-01-10

申请人： Masayuki Numao ,  Shuichi Shimizu ,  Norishige Morimoto ,  Mei Kobayashi

发明人： Masayuki Numao ,  Shuichi Shimizu ,  Norishige Morimoto ,  Mei Kobayashi

IPC分类号： G06K900

CPC分类号： H04N1/32203 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0061 ,  G09C5/00 ,  H04N1/32208 ,  H04N1/32251 ,  H04N1/32309 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

摘要： The present invention provides a data hiding method of hiding media data in message data and a data extraction method of extracting the hidden data wherein message data is dispersively hidden in media data such as an image or sound to prevent a third person from modifying the message data easily. More specifically, the present invention relates to a data hiding method in which media data is expressed as a media array while message data is expressed as a message array so that the array elements of the message array can be dispersively hidden in the message array based on a state values specifying a particular array element of the media array, comprising the steps of: (a) determining the j-th (j≧0) state value Sj; (b) determining (j+1)-th state value Sj+1 based on the j-th state value, the array element of the media array indicated by the j-th state value, and the array element of the message array; and (c) hiding data with respect to the array element of the media array indicated by the (j+1)-th state value Sj+1.

摘要翻译： 本发明提供一种在消息数据中隐藏媒体数据的数据隐藏方法和提取隐藏数据的数据提取方法，其中消息数据被分散地隐藏在诸如图像或声音的媒体数据中，以防止第三人修改消息数据 更具体地，本发明涉及一种数据隐藏方法，其中媒体数据被表示为媒体阵列，而消息数据被表示为消息数组，使得消息数组的数组元素可以被分散地隐藏在消息数组中 基于指定媒体阵列的特定数组元素的状态值，包括以下步骤：（a）确定第j（j> = 0）状态值Sj;（b）确定第（j + 1）状态 基于第j个状态值的值Sj + 1，由第j个状态值指示的媒体数组的数组元素和消息数组的数组元素; 和（c）隐藏相对于由第（j + 1）状态值Sj + 1指示的媒体阵列的数组元素的数据。

公开(公告)号：US6005936A

公开(公告)日：1999-12-21

申请号：US918163

申请日：1997-08-25

申请人： Shuichi Shimizu ,  Masayuki Numao ,  Norishige Morimoto

发明人： Shuichi Shimizu ,  Masayuki Numao ,  Norishige Morimoto

IPC分类号： H04N5/225 ,  G06T1/00 ,  H04N1/32 ,  H04N1/387 ,  H04N7/167 ,  H04N7/18 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/83 ,  H04L9/00

CPC分类号： G06T1/0028 ,  H04N1/32144 ,  G06T2201/0065 ,  H04N2101/00 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/327 ,  H04N2201/3281

摘要： A digital camera for embedding authentication information to detect the identity of a photographed image into an image. By supplying the authentication information integrally with image data, the verifier is enabled to verify the image data without saving the authentication information. Particularly, by converting the light inputted through an optical system to an electric signal, a CCD outputs an analog signal of an image which is converted to a digital signal. In response to the digital signal of the image, a digital camera having a region dividing unit divides the digital image into first and second regions. Authentication information is generated from data in the first region, which information is then encrypted. The encrypted authentication information is embedded into the second image region. The first and second image regions are then combined.

摘要翻译： 一种用于嵌入认证信息以将拍摄图像的身份检测为图像的数字照相机。 通过将认证信息与图像数据一体地提供，验证器能够验证图像数据而不保存认证信息。 特别地，通过将​​通过光学系统输入的光转换为电信号，CCD输出转换为数字信号的图像的模拟信号。 响应于图像的数字信号，具有区域划分单元的数字照相机将数字图像划分成第一和第二区域。 认证信息是从第一区域的数据生成的，然后加密该信息。 加密认证信息被嵌入到第二图像区域中。 然后组合第一和第二图像区域。

公开(公告)号：US5497452A

公开(公告)日：1996-03-05

申请号：US844345

申请日：1992-03-02

申请人： Shuichi Shimizu ,  Masayuki Numao

发明人： Shuichi Shimizu ,  Masayuki Numao

IPC分类号： G06F17/50

CPC分类号： G06F17/5009 ,  G06F2217/06

摘要： A method and apparatus are described by which a geometric model accurately reflecting the intention of the designer can be simply constructed in the generation or modification of a geometric model, without any constraint on operation such as an input order. Using geometric elements (planes, sides, vertexes, etc.) and geometric constraints (size, angle, etc.) between the elements as inputs, bidirectional dependency relation expressions for these geometric elements are created in a dependency relation expression generating mechanism of a geometric reasoning module, and based upon the expressions dependency conditions (dependency order data) are automatically calculated in a dependency order calculating mechanism. Then, attribute values of the geometric elements are determined in a geometric attribute calculating mechanism, and a geometric model is generated in a modeler and outputted to a display device. In order to modify the model, the geometric element to be subjected to a modification process is calculated using memory dependency order data in a conflict detecting and resolving mechanism, and the attribute value of the element is determined. In addition, excessive and conflict geometric constraints are detected, and a conflict resolving action is presented on the display device.

摘要翻译： 描述了一种方法和装置，通过该方法和装置可以简单地在几何模型的生成或修改中简单地构建准确地反映设计者的意图的几何模型，而不对诸如输入顺序的操作进行任何约束。 使用元素之间的几何元素（平面，边，顶点等）和几何约束（大小，角度等）作为输入，在几何元素的依赖关系表达式生成机制中创建这些几何元素的双向依赖关系表达式 推理模块，并根据表达式依赖条件（依赖顺序数据）在依赖关系顺序计算机制中自动计算。 然后，在几何属性计算机构中确定几何元素的属性值，并在建模者中生成几何模型并将其输出到显示装置。 为了修改模型，使用冲突检测和解析机制中的存储器依赖次序数据计算要进行修改处理的几何元素，并且确定元素的属性值。 另外，检测到过多和冲突的几何约束，并且在显示装置上呈现冲突解决动作。

公开(公告)号：US5684725A

公开(公告)日：1997-11-04

申请号：US534418

申请日：1995-09-27

申请人： Masayuki Numao ,  Hiroshi Masuda ,  Hirofumi Matsuzawa

发明人： Masayuki Numao ,  Hiroshi Masuda ,  Hirofumi Matsuzawa

IPC分类号： G06F17/50 ,  G06T15/00 ,  G06T17/10 ,  G06T17/00

CPC分类号： G06T17/10

摘要： A technique to synthesize an accurate solid model from drawing data. Closed regions are detected based on top view data and a closed region list is generated. A tree structure is detected and the list is converted to symbol groups, each of which is a set of symbols representative of the elements of the contour line of the closed region and symbols representative of a connection relationship between the elements. When the converted symbol groups include a symbol group having a specific symbol, that symbol group is divided into a plurality of symbol groups based on that specific symbol. The symbol groups are matched, and the area of the closed region is detected. Symbol groups of closed regions of the same shape are classified and symbol groups of closed regions of the same area are classified. From the classified symbol groups, symbol groups of closed regions having a child of the closed region of the same shape and area are classified, and a solid model is constructed.

摘要翻译： 从绘图数据合成精确实体模型的技术。 基于顶视图数据检测闭合区域，并且生成闭合区域列表。 检测树结构，并将列表转换为符号组，每个符号组是表示封闭区域的轮廓线的元素的符号集合，以及表示元素之间的连接关系的符号。 当转换的符号组包括具有特定符号的符号组时，该符号组基于该特定符号被划分成多个符号组。 符号组匹配，并且检测到封闭区域的区域。 对相同形状的封闭区域的符号组进行分类，并对相同区域的封闭区域的符号组进行分类。 从分类的符号组中分类具有相同形状和面积的封闭区域的子的封闭区域的符号组，构建实体模型。

公开(公告)号：US5668939A

公开(公告)日：1997-09-16

申请号：US623099

申请日：1996-03-28

申请人： Masayuki Numao ,  Hiroshi Masuda

发明人： Masayuki Numao ,  Hiroshi Masuda

IPC分类号： G06F17/50 ,  G06T17/00 ,  G06T17/10 ,  G06F15/00

CPC分类号： G06T17/00 ,  G06T17/10

摘要： A system and method for inputting two-dimensional drawing data and classifying that drawing data into plan view data and sectional view data. Closed regions and inclusion relations among the respective closed regions are detected from the classified plan view data. Attributes of the detected closed regions are detected, and the detected closed regions are grouped into groups, each including closed regions of the same attributes based on the detected attributes of the closed regions. The sectional view data is divided on the basis of data on the detected closed regions. Some of the closed regions are three-dimensionalized based on the divided sectional view data. Closed regions not belonging to the three-dimensionalized portion of the closed regions but belonging to the same group as a three-dimensionalized closed region are three-dimensionalized by the same method as was used for the three-dimensionalized closed region. A solid model is generated by combining the three-dimensionalized closed regions through Boolean operations performed on the basis of the inclusion relation among the respective closed regions.

摘要翻译： 一种用于输入二维绘图数据并将绘制数据分类为平面图数据和截面图数据的系统和方法。 从分类平面图数据中检测各个封闭区域之间的闭合区域和夹杂关系。 检测到检测到的闭合区域的属性，并且基于检测到的封闭区域的属性，检测到的封闭区域被分组成组，每个组包括相同属性的封闭区域。 基于检测到的封闭区域的数据划分截面图数据。 基于分割的截面图数据，一些闭合区域被三维化。 通过与三维闭合区域相同的方法，不属于封闭区域的三维化部分，但属于与三维化封闭区域相同组的封闭区域。 通过基于各个封闭区域之间的夹杂关系进行的布尔运算，组合三维闭合区域来生成实体模型。

公开(公告)号：US08538937B2

公开(公告)日：2013-09-17

申请号：US10421256

申请日：2003-04-22

申请人： Masayuki Numao ,  Yuji Watanabe

发明人： Masayuki Numao ,  Yuji Watanabe

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F17/30545 ,  G06F17/30864

摘要： A database search system ensures the privacy of a search request and the security of a database with high processing efficiency. The system comprises a database server residing on a network that stores predetermined data, and a client terminal issuing to the database server a search request for inquiring for desired data while keeping the desired data secret. The database server further comprises: a database storing predetermined data; and a search response message generation unit for receiving through a network the data search request in which data to be searched for is kept secret, searching the database by a predetermined computation based on the search request and a list of the data stored in the database while a data item involved with the search request is kept secret, and generating a response to the search request.

摘要翻译： 数据库搜索系统确保搜索请求的隐私和高处理效率的数据库的安全性。 系统包括驻留在存储预定数据的网络上的数据库服务器，以及客户端终端向数据库服务器发出查询请求以寻求期望数据同时保持所需数据的秘密。 数据库服务器还包括：存储预定数据的数据库; 以及搜索响应消息生成单元，用于通过网络接收数据搜索请求，其中要搜索的数据被保密，通过基于搜索请求的预定计算和存储在数据库中的数据的列表来搜索数据库，同时 涉及搜索请求的数据项保密，并产生对搜索请求的响应。

公开(公告)号：US08386780B2

公开(公告)日：2013-02-26

申请号：US10453015

申请日：2003-06-03

申请人： Yuji Watanabe ,  Masayuki Numao

发明人： Yuji Watanabe ,  Masayuki Numao

IPC分类号： H04L29/06

CPC分类号： H04L9/3013 ,  H04L2209/76

摘要： Cryptographic communication system including a sender terminal for encrypting and transmitting a message, a recipient terminal for receiving and decrypting the encrypted message, an agent terminal for decrypting the message in place of the recipient terminal, and a conversion server for supporting the agent terminal to decrypt the message. The sender terminal encrypts the message using a public key of the recipient terminal. Using a public key of the conversion server, a predetermined restricted condition, and a secret key for decryption of the message, the recipient terminal generates a delegation key allowing decryption of the message under the restricted condition and passes the delegation key to the agent terminal. The conversion server validates a power of the agent terminal to decrypt the message based on the information contained in the delegation key from the agent terminal. The agent terminal then decrypts the message with validation of the conversion server.

摘要翻译： 包括用于加密和发送消息的发送方终端的加密通信系统，用于接收和解密加密消息的接收方终端，代替接收终端解密消息的代理终端，以及用于支持代理终端解密的转换服务器 消息。 发件人终端使用接收方终端的公开密钥对消息进行加密。 使用转换服务器的公开密钥，预定限制条件和解密消息的秘密密钥，接收方终端生成允许在限制条件下解密消息的委托密钥，并将委托密钥传递给代理终端。 转换服务器根据来自代理终端的委托密钥中包含的信息来验证代理终端的权力以解密该消息。 代理终端然后通过验证转换服务器对消息进行解密。

公开(公告)号：US08165913B2

公开(公告)日：2012-04-24

申请号：US11845330

申请日：2007-08-27

申请人： Fumihiko Kitayama ,  Hirofumi Matsuzawa ,  Masayuki Numao

发明人： Fumihiko Kitayama ,  Hirofumi Matsuzawa ,  Masayuki Numao

IPC分类号： G06F17/50

CPC分类号： G06Q99/00 ,  G06Q10/063 ,  G06Q10/06395

摘要： A system for tracing a cause of a phenomenon occurring in products produced in a production process chain is provided. The system is provided with a storage unit for storing a virtual attribute in association with corresponding second products, a receiving unit for receiving information for specifying third products in which a phenomenon occurs, a correlation calculation unit for calculating a correlation coefficient between the third products specified by the information for specifying the third products and the group of the second products having a common virtual attribute, for every kind of second products used in the third products, and a cause identification unit for identifying the second products belonging to the kind of the second products for which a maximum correlation coefficient is calculated as the cause of the phenomenon.

摘要翻译： 提供了用于追踪在生产过程链中产生的产品中发生现象的原因的系统。 该系统设置有用于存储与对应的第二产品相关联的虚拟属性的存储单元，用于接收用于指定发生现象的第三产品的信息的接收单元，用于计算指定的第三产品之间的相关系数的相关计算单元 通过用于指定第三产品的信息和具有共同虚拟属性的第二产品的组，用于第三产品中使用的每种第二产品，以及原因识别单元，用于识别属于第二产品的第二产品的属性 计算出最大相关系数作为该现象的原因的产品。