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    Digital watermark embedding method, apparatus, digital watermark extraction method and apparatus
    1.
    发明授权
    Digital watermark embedding method, apparatus, digital watermark extraction method and apparatus 失效
    数字水印嵌入方法，装置，数字水印提取方法及装置

    公开(公告)号：US07260238B2

    公开(公告)日：2007-08-21

    申请号：US10727636

    申请日：2003-12-05

    申请人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    发明人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K15/00 ,  H04N1/40

    CPC分类号： G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062

    摘要： Distance d1 between the right edges of A1 and B2, and distance d2 between the right edges of A3 and B4 are calculated. If data to be embedded is 1, one or a combination of a process for increasing the size of B2 in the column direction or decreasing the size of B4 in the column and a process for moving the position of B2 toward B3 or moving the position of B4 toward B3 is executed to meet d1>d2. If data to be embedded is 0, one or a combination of a process for decreasing the size of B2 in the column direction or increasing the size of B4 in the column direction, and a process for moving the position of B2 toward B1 or moving the position of B4 toward B5 is executed to meet d1

    摘要翻译： 计算A 1和B 2的右边缘之间的距离d 1，以及A 3和B 4的右边缘之间的距离d 2。 如果要嵌入的数据为1，则在列方向上增加B 2的大小或减小列中的B 4的大小的处理的一个或组合以及将B 2的位置移动到B 3的处理或 将B 4的位置向B 3移动，以满足d 1> d 2。 如果要嵌入的数据为0，则在列方向上减小B 2的大小或者增加列方向上的B 4的大小的处理的一个或组合，以及将B 2的位置移动到B的处理 1或将B 4的位置移向B 5，以满足d 1

    Digital watermark embedding apparatus, digital watermark extraction apparatus, and methods thereof
    3.
    发明授权
    Digital watermark embedding apparatus, digital watermark extraction apparatus, and methods thereof 失效
    数字水印嵌入装置，数字水印提取装置及其方法

    公开(公告)号：US07209572B2

    公开(公告)日：2007-04-24

    申请号：US10456534

    申请日：2003-06-09

    申请人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    发明人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    IPC分类号： H04K1/00

    CPC分类号： G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0062

    摘要： A document image undergoes document analysis to obtain circumscribing rectangles of characters (S601), and two distances between non-neighboring circumscribing rectangles from the head of the document are respectively calculated as d1 and d2 (S603). If information to be embedded is 1, one or a combination of a process for changing a parameter associated with the size of a circumscribing rectangle and a process for changing a parameter associated with the position of a circumscribing rectangle is executed to satisfy d1>d2 (S605). If information to be embedded is 0, one or a combination of the above two parameter change processes is executed to satisfy d1

    摘要翻译： 文档图像经历文档分析以获得字符的外接矩形（S 601），并且从文档头部的不相邻外接矩形之间的两个距离分别被计算为d 1和d 2（S 603）。 如果要嵌入的信息为1，则执行用于改变与外接矩形的尺寸相关联的参数的处理的一个或组合，以及用于改变与外接矩形的位置相关联的参数的处理以满足d 1> d 2（S 605）。 如果要嵌入的信息为0，则执行上述两个参数改变处理中的一个或组合以满足d 1

    Digital watermark embedding method, digital watermark extraction method, digital watermark embedding apparatus, and digital watermark extraction apparatus
    4.
    发明授权
    Digital watermark embedding method, digital watermark extraction method, digital watermark embedding apparatus, and digital watermark extraction apparatus 失效
    数字水印嵌入方法，数字水印提取方法，数字水印嵌入装置和数字水印提取装置

    公开(公告)号：US07269274B2

    公开(公告)日：2007-09-11

    申请号：US10727637

    申请日：2003-12-05

    申请人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    发明人： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

    IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K15/00

    CPC分类号： G06T1/0021

    摘要： An apparatus for embedding a digital watermark in a document image detects circumscribing outer shapes of characters in the document image and sets a plurality of reference lines that extend in the column direction and are spaced apart in the row direction by a basic pitch. The outer shapes include a first outer shape, a second outer shape that neighbors the first outer shape, and a third outer shape that neighbors the second outer shape, and the reference lines include a first reference line located between the first outer shape and the second outer shape, and a second reference line located between the second outer shape and the third outer shape. Control is performed for at least one of the second and third outer shapes so that a distance between the first reference line and an edge of the second outer shape is different from a distance between the second reference line and an edge of the third outer shape, in accordance with digital watermark information to be embedded.

    摘要翻译： 用于在文件图像中嵌入数字水印的装置检测文档图像中的外部字符的外形，并且设置在列方向上延伸并以行方向间隔开的基准间距的多个参考线。 外形包括第一外形，邻近第一外形的第二外形和与第二外形相邻的第三外形，并且参考线包括位于第一外形和第二外形之间的第一参考线 以及位于第二外形和第三外形之间的第二参考线。 对第二外形和第三外形中的至少一个执行控制，使得第一参考线与第二外形的边缘之间的距离不同于第二参考线与第三外形的边缘之间的距离， 根据要嵌入的数字水印信息。

    Method, apparatus, and computer program product for embedding digital watermark, and method, apparatus, and computer program product for extracting digital watermark
    6.
    发明授权
    Method, apparatus, and computer program product for embedding digital watermark, and method, apparatus, and computer program product for extracting digital watermark 失效
    用于嵌入数字水印的方法，装置和计算机程序产品，以及用于提取数字水印的方法，装置和计算机程序产品

    公开(公告)号：US07411702B2

    公开(公告)日：2008-08-12

    申请号：US10696071

    申请日：2003-10-28

    申请人： Takami Eguchi ,  Kitahiro Kaneda

    发明人： Takami Eguchi ,  Kitahiro Kaneda

    IPC分类号： G06K15/00

    CPC分类号： G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0061

    摘要： A method for embedding a digital watermark includes a step of inputting digital watermark information; a step of inputting an image; a step of dividing the image into a plurality of areas; a step of ordering the plurality of areas according to a predetermined ordering criterion; a step of embedding the digital watermark information over the plurality of areas that have been ordered; and a step of outputting an image with the digital watermark information embedded therein.

    摘要翻译： 嵌入数字水印的方法包括输入数字水印信息的步骤; 输入图像的步骤; 将图像分割成多个区域的步骤; 根据预定的排序标准排序多个区域的步骤; 在已经排序的多个区域上嵌入数字水印信息的步骤; 以及输入嵌入有数字水印信息的图像的步骤。

    Image processor, method thereof, computer program, and computer readable storage medium
    7.
    发明授权
    Image processor, method thereof, computer program, and computer readable storage medium 失效
    图像处理器，其方法，计算机程序和计算机可读存储介质

    公开(公告)号：US07571323B2

    公开(公告)日：2009-08-04

    申请号：US10759364

    申请日：2004-01-16

    申请人： Keiichi Iwamura ,  Kitahiro Kaneda

    发明人： Keiichi Iwamura ,  Kitahiro Kaneda

    IPC分类号： H04L9/00 ,  G06K9/00

    CPC分类号： H04N1/00846 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/00005 ,  H04N1/00037 ,  H04N1/00864 ,  H04N1/00867 ,  H04N1/0087 ,  H04N1/00875 ,  H04N1/00883 ,  H04N1/32144 ,  H04N2201/3246 ,  H04N2201/327

    摘要： A method for image processing comprising inputting and reading a combined image that includes a latent image unperceivable by the human eye, a patterned image in the background allowing the latent image to appear clearly on a recording medium when data recorded on a recording medium is copied onto another recording medium, and text and/or image data embedded with a digital watermark. The text and/or image data is extracted from the combined image and the digital watermark extracted from the text and/or image data. A permission code enabling copying of image data composed of a combination of a patterned image and the extracted text and/or image data onto a recording medium is input. The copying is regulated based on the extracted digital watermark and the permission code.

    摘要翻译： 一种用于图像处理的方法，包括输入和读取包括人眼不可察觉的潜像的组合图像，背景中的图案化图像，允许潜像在记录介质上记录的数据被复制到记录介质上清晰地显示在其上 另一种记录介质，以及嵌入数字水印的文本和/或图像数据。 从组合图像和从文本和/或图像数据提取的数字水印中提取文本和/或图像数据。 输入允许将由图案化图像和提取的文本和/或图像数据的组合组成的图像数据复制到记录介质上的许可代码。 基于提取的数字水印和许可代码对复制进行调整。

    Communication system and control method thereof, and computer-readable memory
    9.
    发明授权
    Communication system and control method thereof, and computer-readable memory 失效
    通信系统及其控制方法以及计算机可读存储器

    公开(公告)号：US07440617B2

    公开(公告)日：2008-10-21

    申请号：US11081504

    申请日：2005-03-17

    申请人： Kitahiro Kaneda

    发明人： Kitahiro Kaneda

    IPC分类号： G06K9/00

    CPC分类号： G06K9/03

    摘要： A mobile terminal reads a read manuscript as image data. A character recognition block performs character recognition from the image data, which is read, on the basis of a threshold for judgement of unrecognizableness. A character recognition result is transmitted to a central control unit, or the threshold for judgement of unrecognizableness is received from the central control unit in a threshold receiver. On the other hand, the central control unit receives the result of character recognition from the mobile terminal, or transmits the threshold for judgement of unrecognizableness from a threshold transmitter to the mobile terminal. Furthermore, the central control unit controls the threshold for judgement of unrecognizableness with a threshold controller.

    摘要翻译： 移动终端将读取的原稿读取为图像数据。 字符识别块基于用于判断不可识别的阈值，从读取的图像数据中执行字符识别。 将字符识别结果发送到中央控制单元，或者在阈值接收器中从中央控制单元接收到用于判断不可识别的阈值。 另一方面，中央控制单元从移动终端接收字符识别的结果，或者从门限发送器向移动终端发送用于判断不可识别的阈值。 此外，中央控制单元通过阈值控制器控制用于判断不可识别的阈值。

    Form recognition system, form recognition method, program and storage medium
    10.
    发明授权
    Form recognition system, form recognition method, program and storage medium 有权
    表格识别系统，表单识别方法，程序和存储介质

    公开(公告)号：US07277584B2

    公开(公告)日：2007-10-02

    申请号：US10190819

    申请日：2002-07-09

    申请人： Keiko Nakanishi ,  Kenichi Kazumi ,  Kitahiro Kaneda ,  Hiroki Fukuda

    发明人： Keiko Nakanishi ,  Kenichi Kazumi ,  Kitahiro Kaneda ,  Hiroki Fukuda

    IPC分类号： G06K9/68 ,  G06K9/00 ,  G06K9/34

    CPC分类号： G06K9/38

    摘要： A plurality of binary images are obtained from one form image by binarizing the form image by using a plurality of binarizing threshold values for improving a recognition rate of the search form irrespective of a state of the inputted form image, and format data are generated respectively from the plurality of binary images. If the inputted form image is a binary image, after the binary image has been converted into a multi-valued image by a vignetting filter, a plurality of binary images are obtained from one form image by executing the binarizing processing by use of the plurality of binarizing threshold values respectively, thereby generating the format data respectively from the plurality of binary images.

    摘要翻译： 通过使用多个二值化阈值对形式图像进行二值化，从而从一个形式图像获得多个二进制图像，用于改善搜索形式的识别率，而不管输入的形式图像的状态如何，并且格式数据分别从 多个二进制图像。 如果输入的形式图像是二进制图像，则在通过渐晕滤波器将二值图像转换为多值图像之后，通过使用多个图像图像来执行二值化处理，从一个形式图像获得多个二进制图像 分别对阈值进行二值化，从而分别从多个二进制图像生成格式数据。