公开(公告)号：US07593961B2

公开(公告)日：2009-09-22

申请号：US10828166

申请日：2004-04-21

申请人： Takami Eguchi ,  Mitsuru Uzawa

发明人： Takami Eguchi ,  Mitsuru Uzawa

IPC分类号： G06F7/00

CPC分类号： G06K9/00463 ,  G06F17/30259 ,  Y10S707/99931 ,  Y10S707/99945 ,  Y10S707/99948

摘要： More accurate retrieval of original documents is conducted by adaptively evaluating retrieval results, which are obtained by retrieving attributes, in accordance with layout information. To achieve this, there is provided an information processing method for retrieving image data that is similar to an entered document image, the method including a step (S402) of segmenting the entered document image into a plurality of areas on a per-attribute basis; a step of calculating degree of similarity, for every area obtained by segmentation, using a retrieval step suited to the attribute; and a step (S406) of calculating overall degree of similarity in which the degree of similarity calculated for every area obtained by segmentation is weighted.

摘要翻译： 通过根据布局信息自适应地评估通过检索属性获得的检索结果，进行原始文档的更准确的检索。 为了实现这一点，提供了一种用于检索类似于输入的文档图像的图像数据的信息处理方法，该方法包括将输入的文档图像分为每个属性的多个区域的步骤（S402） 对于通过分割获得的每个区域，使用适合该属性的检索步骤来计算相似度的步骤; 以及对通过分割获得的每个区域计算的相似度进行加权的总体相似度的步骤（S406）。

公开(公告)号：US20090175493A1

公开(公告)日：2009-07-09

申请号：US12128221

申请日：2008-05-28

申请人： Masanori Yokoi ,  Koji Harada ,  Takami Eguchi

发明人： Masanori Yokoi ,  Koji Harada ,  Takami Eguchi

IPC分类号： G06K9/00 ,  G06K9/38 ,  G06K9/32

CPC分类号： H04N1/32219 ,  G06K9/00463 ,  G06K9/3283 ,  H04N1/32203 ,  H04N2201/3233 ,  H04N2201/327

摘要： To accurately extract embedded information from a document image using line spacing watermark, an image processing apparatus for extracting watermark information includes an input unit which inputs a document image as image data, an image reduction unit which generates, from the image data, reduced image data reduced in the first direction, a detection unit which scans the reduced image data in the second direction and detects the length of a blank region as line spacing information, and an extraction unit which extracts watermark information embedded in the document image based on the line spacing information.

摘要翻译： 为了使用线间隔水印从文档图像中准确地提取嵌入信息，用于提取水印信息的图像处理装置包括输入单元，其输入作为图像数据的文档图像，图像缩小单元，从图像数据生成缩小图像数据 在第一方向上减小的检测单元，其以第二方向扫描缩小图像数据并检测空白区域的长度作为行间隔信息;以及提取单元，其基于行间距提取嵌入文档图像中的水印信息 信息。

公开(公告)号：US07260239B2

公开(公告)日：2007-08-21

申请号：US10857049

申请日：2004-05-28

申请人： Takami Eguchi

发明人： Takami Eguchi

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062 ,  G06T2201/0065

摘要： An information hiding system such as a digital-watermark information system has an embedding side and an extracting side for recognizing an identical character string in which digital-watermark information is embedded, and the extracting side reliably extracts all digital-watermark information from the character string. In order to realize this, an image processing method of the present invention includes a determining step of determining whether a predetermined distance between each target character and an adjoining character can be maintained if any digital-watermark information which may be embedded in the target character is actually embedded; and a setting step of setting an object which is to be embedded with digital-watermark information according to the determination result.

摘要翻译： 诸如数字水印信息系统的信息隐藏系统具有嵌入侧和提取侧，用于识别其中嵌入有数字水印信息的相同字符串，并且提取侧可靠地从字符串中提取所有数字水印信息 。 为了实现这一点，本发明的图像处理方法包括确定步骤，用于确定如果可以嵌入目标字符的任何数字水印信息是可以被嵌入目标字符中的任何数字水印信息，则确定是否可以保持每个目标字符与相邻字符之间的预定距离 实际嵌入; 以及根据确定结果设置要嵌入数字水印信息的对象的设置步骤。

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

公开(公告)号：US08064636B2

公开(公告)日：2011-11-22

申请号：US12128221

申请日：2008-05-28

申请人： Masanori Yokoi ,  Koji Harada ,  Takami Eguchi

发明人： Masanori Yokoi ,  Koji Harada ,  Takami Eguchi

IPC分类号： G06K9/00

CPC分类号： H04N1/32219 ,  G06K9/00463 ,  G06K9/3283 ,  H04N1/32203 ,  H04N2201/3233 ,  H04N2201/327

摘要： To accurately extract embedded information from a document image using line spacing watermark, an image processing apparatus for extracting watermark information includes an input unit which inputs a document image as image data, an image reduction unit which generates, from the image data, reduced image data reduced in the first direction, a detection unit which scans the reduced image data in the second direction and detects the length of a blank region as line spacing information, and an extraction unit which extracts watermark information embedded in the document image based on the line spacing information.

摘要翻译： 为了使用线间隔水印从文档图像中准确地提取嵌入信息，用于提取水印信息的图像处理装置包括输入单元，其输入作为图像数据的文档图像，图像缩小单元，从图像数据生成缩小图像数据 在第一方向上减小的检测单元，其以第二方向扫描缩小图像数据并检测空白区域的长度作为行间隔信息;以及提取单元，其基于行间距提取嵌入文档图像中的水印信息 信息。

公开(公告)号：US20070201099A1

公开(公告)日：2007-08-30

申请号：US11740770

申请日：2007-04-26

申请人： Takami Eguchi ,  Keiichi Iwamura

发明人： Takami Eguchi ,  Keiichi Iwamura

IPC分类号： H04N1/40

CPC分类号： G06T1/0028 ,  G06T1/0078 ,  G06T2201/0051 ,  G06T2201/0202 ,  H04N1/32203 ,  H04N1/32219 ,  H04N1/3232

摘要： An apparatus receives a document image and digital-watermark information and determines an embedding capacity based on a number of the letters in the document image. The apparatus determines whether or not the entire digital-watermark information is capable of being embedded in the document image based on the determined embedding capacity and embeds the digital-watermark information in the document image based on a result of the determination of whether or not the entire digital-watermark information is capable of being embedded in the document image.

摘要翻译： 一种装置接收文件图像和数字水印信息，并且基于文档图像中的字母数确定嵌入容量。 该装置基于所确定的嵌入容量来确定整个数字水印信息是否能够被嵌入在文档图像中，并且基于确定的数字水印信息的结果将数字水印信息嵌入在文档图像中 整个数字水印信息能够嵌入在文档图像中。

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。

公开(公告)号：US07386149B2

公开(公告)日：2008-06-10

申请号：US11740770

申请日：2007-04-26

申请人： Takami Eguchi ,  Keiichi Iwamura

发明人： Takami Eguchi ,  Keiichi Iwamura

IPC分类号： G06K9/00

CPC分类号： G06T1/0028 ,  G06T1/0078 ,  G06T2201/0051 ,  G06T2201/0202 ,  H04N1/32203 ,  H04N1/32219 ,  H04N1/3232

摘要： An apparatus receives a document image and digital-watermark information and determines an embedding capacity based on a number of the letters in the document image. The apparatus determines whether or not the entire digital-watermark information is capable of being embedded in the document image based on the determined embedding capacity and embeds the digital-watermark information in the document image based on a result of the determination of whether or not the entire digital-watermark information is capable of being embedded in the document image.

摘要翻译： 一种装置接收文件图像和数字水印信息，并且基于文档图像中的字母数确定嵌入容量。 该装置基于所确定的嵌入容量来确定整个数字水印信息是否能够被嵌入在文档图像中，并且基于确定的数字水印信息的结果将数字水印信息嵌入在文档图像中 整个数字水印信息能够嵌入在文档图像中。

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。

公开(公告)号：US20070127771A1

公开(公告)日：2007-06-07

申请号：US11670205

申请日：2007-02-01

申请人： Kitahiro Kaneda ,  Keiichi Iwamura ,  Ken-ichi Ohta ,  Yoshihiro Ishida ,  Shinichi Kato ,  Junichi Hayashi ,  Jun Tamaru ,  Takami Eguchi

发明人： Kitahiro Kaneda ,  Keiichi Iwamura ,  Ken-ichi Ohta ,  Yoshihiro Ishida ,  Shinichi Kato ,  Junichi Hayashi ,  Jun Tamaru ,  Takami Eguchi

IPC分类号： G06K9/00

CPC分类号： G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32219 ,  H04N1/32251 ,  H04N1/32261 ,  H04N1/32299 ,  H04N1/32315 ,  H04N2201/3226 ,  H04N2201/3233

摘要： It is required to protect the copyrights and the like of partial images which form respective parts of an image obtained by reading an image, exchanged using a print as a medium, by an image scanner or the like. Input image data is divided into a plurality of image regions having different features, digital watermarks, which are embedded in the detected image regions by embedding methods corresponding to the features of the image regions, are extracted, and the availability of the input image is checked on the basis of the extracted digital watermarks.

摘要翻译： 需要通过图像扫描器等来保护通过读取使用打印作为介质进行交换的图像而获得的图像的相应部分的部分图像的版权等。 输入图像数据被分成具有不同特征的多个图像区域，提取嵌入在检测图像区域中的嵌入方法，通过嵌入与图像区域的特征相对应的方法，检查输入图像的可用性 在提取的数字水印的基础上。