公开(公告)号：US20100158311A1

公开(公告)日：2010-06-24

申请号：US12659079

申请日：2010-02-24

Applicant: Jun Takahashi ,  Kensuke Kuraki ,  Taizo Anan

Inventor： Jun Takahashi ,  Kensuke Kuraki ,  Taizo Anan

IPC: G06T1/00

CPC classification number: G06K9/48 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32203 ,  H04N1/32219 ,  H04N1/32235 ,  H04N1/32251 ,  H04N1/32261 ,  H04N1/32309

Abstract: An electronic watermark embedding device that embeds a graphic pattern representing information in image data includes a signaling feature period changing unit configured to change a period of signaling feature of a graphic pattern, a graphic pattern embedding unit configured to embed the graphic pattern in the image data as a period of the signaling feature changed by the signaling feature period changing unit, and an embedment region detecting unit configured to detect an embedding position where the graphic pattern is embedded from a region of the image data other than a background, whereby the signaling feature period changing unit changes the period of the signaling feature while maintaining the signaling feature when the image data undergo image enlargement or reduction processing, and the graphic pattern embedding unit embeds the graphic pattern in the embedding position on the region of the image data other than the background.

Abstract translation: 将表示信息的图形图形嵌入图像数据中的电子水印嵌入装置包括：信号特征周期改变单元，被配置为改变图形信号的信号特征的周期;图形模式嵌入单元，被配置为将图形图形嵌入图像数据中 作为由信令特征周期改变单元改变的信令特征的周期，以及嵌入区域检测单元，被配置为从除了背景之外的图像数据的区域中检测嵌入图形图案的嵌入位置，由此信令特征 当图像数据进行图像放大或缩小处理时，周期改变单元改变信令特征的周期，同时维持信令特征，并且图形模式嵌入单元将图形模式嵌入图像数据的除了 背景。

公开(公告)号：US20100104130A1

公开(公告)日：2010-04-29

申请号：US12604461

申请日：2009-10-23

Applicant: Koji Harada

Inventor： Koji Harada

IPC: G06K9/00

CPC classification number: G06K9/348 ,  G06K2209/01 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062

Abstract: Character spacing values in a document image are extracted and a variance is calculated for fluctuations in the character spacing values. When the calculated variance is lower than a preset threshold value, the document image is determined as having watermark information embedded therein. Such use of the variance in the character spacing values enables high-speed determination of the presence or absence of character-spacing watermark information. At this time, it is possible to speed up the determination by using only some character spacing values in the document, instead of using all character spacing values.

Abstract translation: 提取文档图像中的字符间距值，并计算字符间隔值的波动的方差。 当计算的方差低于预设的阈值时，文档图像被确定为具有嵌入其中的水印信息。 这样使用字符间隔值中的方差能够高速确定字符间隔水印信息的存在与否。 此时，可以通过仅使用文档中的一些字符间距值来加速确定，而不是使用所有字符间隔值。

公开(公告)号：US20080298634A1

公开(公告)日：2008-12-04

申请号：US12128174

申请日：2008-05-28

Applicant: Koji Harada ,  Masanori Yokoi ,  Takami Eguchi

Inventor： Koji Harada ,  Masanori Yokoi ,  Takami Eguchi

IPC: G06K9/00

CPC classification number: G06F17/211 ,  G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32203 ,  H04N1/32229 ,  H04N1/32336

Abstract: To provide a technique of embedding information in a document image containing character strings, photos, and graphics, an image processing apparatus for inputting a document image and embedding watermark information by controlling the line spacing between character strings in the document image includes an input unit which inputs a document image as image data, an image reduction unit which generates reduced image data from the image data, a determination unit which determines reduced objects corresponding to character strings in the image data, a specifying unit which specifies the position of each character string in the image data based on the positions of the reduced objects in the reduced image data, and an embedding unit which embeds the watermark information in the image data by moving the positions of a plurality of specified character strings in the image data based on a preset line spacing correspondence relationship.

Abstract translation: 为了提供将信息嵌入到包含字符串，照片和图形的文档图像中的技术，用于输入文档图像的图像处理装置和通过控制文档图像中的字符串之间的行间距来嵌入水印信息包括输入单元， 输入文件图像作为图像数据，图像缩小单元，其从图像数据生成缩小的图像数据;确定单元，其确定与图像数据中的字符串相对应的缩小对象;指定单元，其指定每个字符串的位置 基于缩小图像数据中的缩小对象的位置的图像数据，以及嵌入单元，其通过基于预设线移动图像数据中的多个指定字符串的位置来将图像数据嵌入图像数据中 间距对应关系。

公开(公告)号：US07209572B2

公开(公告)日：2007-04-24

申请号：US10456534

申请日：2003-06-09

Applicant: Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

Inventor： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

IPC: H04K1/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0062

Abstract: 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

Abstract translation: 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

公开(公告)号：US20060285719A1

公开(公告)日：2006-12-21

申请号：US11307550

申请日：2006-02-13

Applicant: Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

Inventor： Kuan-Hong Hsieh ,  Xiao-Fang Chen ,  Zai-An Pan

IPC: G06K9/00

CPC classification number: G06T1/0021 ,  G06K9/00577 ,  G06T2201/0051 ,  G06T2201/0062 ,  H04N1/32208 ,  H04N1/32229 ,  H04N1/32251 ,  H04N1/32272

Abstract: A digital watermarking system and method is provided. The digital watermarking system mainly includes a storing unit, a text obtaining module, a pixel determining module, an encrypting module, and a storing module. The storing unit is for storing text information, the text information including one or more dot matrix files. The text obtaining module is for obtaining one dot matrix file to be watermarked from the storing unit. The dot matrix file includes plural dot matrixes, each of which includes plural pixels, each pixel possessing a display property. The pixel determining module is for earmarking the pixel to be adjusted to obtain a watermark. The encrypting module is for adjusting the display property the earmarked pixel. The storing module is for storing watermarked text information in the storing unit. Related methods are provided.

Abstract translation: 提供了一种数字水印系统和方法。 数字水印系统主要包括存储单元，文本获取模块，像素确定模块，加密模块和存储模块。 存储单元用于存储文本信息，文本信息包括一个或多个点阵文件。 文本获取模块用于从存储单元获得要加水印的一个点阵文件。 点阵文件包括多个点矩阵，每个点矩阵包括多个像素，每个像素具有显示属性。 像素确定模块用于指定要调整的像素以获得水印。 加密模块用于调整指定像素的显示属性。 存储模块用于将加水印的文本信息存储在存储单元中。 提供相关方法。

公开(公告)号：US20040141631A1

公开(公告)日：2004-07-22

申请号：US10727636

申请日：2003-12-05

Applicant: Canon Kabushiki Kaisha

Inventor： Keiichi Iwamura ,  Kitahiro Kaneda ,  Jun Tamaru ,  Takami Eguchi

IPC: G06K009/00

CPC classification number: G06T1/0021 ,  G06T2201/0051 ,  G06T2201/0062

Abstract: 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

Abstract translation: 计算A1和B2的右边缘之间的距离d1，以及A3和B4的右边缘之间的距离d2。 如果要嵌入的数据为1，则在列方向上增加B2的大小或减小列中的B4的大小的处理的一个或组合，以及将B2的位置移动到B3或移动位置的处理 执行B4到B3以满足d1> d2。 如果要嵌入的数据为0，则在列方向上减小B2的大小或者增加列方向上的B4的大小的处理的一个或组合，以及将B2的位置移向B1或移动 执行B4朝向B5的位置以满足d1

公开(公告)号：US12118638B1

公开(公告)日：2024-10-15

申请号：US18615571

申请日：2024-03-25

Applicant: Equity Shift, Inc.

Inventor： Thomas Marshall Gordon, III ,  Gregory Frederick Bush

IPC: G06T1/00 ,  G06F16/901 ,  G06F16/93 ,  H04L9/00

CPC classification number: G06T1/0021 ,  G06F16/9014 ,  G06F16/93 ,  H04L9/50 ,  G06T2201/0062

Abstract: The system is disclosed for visual marking sensitive documents for leak prevention. Each time an action is taken with regard to a document (e.g., creation, viewing, downloading), that action is added to a distributed ledger, essentially creating a unique hash for a new instance of the document. This new hash is visually embedded in the document as a code comprising a plurality of differently shaded pixels, wherein some of the pixels directly encode information regarding the document (e.g., an account that generated the new instance of the document, a date, a time, a unique ID for the document, etc.) and some of the pixels do not encode information. The code is capable of being scanned either digitally or physically on a printed version of the document, such that the immediate source of the document, corresponding to who leaked the document, is able to be discerned.

公开(公告)号：US11954756B1

公开(公告)日：2024-04-09

申请号：US18495340

申请日：2023-10-26

Applicant: Equity Shift, Inc.

Inventor： Thomas Marshall Gordon, III ,  Gregory Frederick Bush

IPC: G06T1/00 ,  G06F16/901 ,  G06F16/93 ,  H04L9/00

CPC classification number: G06T1/0021 ,  G06F16/9014 ,  G06F16/93 ,  H04L9/50 ,  G06T2201/0062

Abstract: The system is disclosed for visual marking sensitive documents for leak prevention. Each time an action is taken with regard to a document (e.g., creation, viewing, downloading), that action is added to a distributed ledger, essentially creating a unique hash for a new instance of the document. This new hash is visually embedded in the document as a code comprising a plurality of differently shaded pixels, wherein some of the pixels directly encode information regarding the document (e.g., an account that generated the new instance of the document, a date, a time, a unique ID for the document, etc.) and some of the pixels do not encode information. The code is capable of being scanned either digitally or physically on a printed version of the document, such that the immediate source of the document, corresponding to who leaked the document, is able to be discerned.

公开(公告)号：US11741735B2

公开(公告)日：2023-08-29

申请号：US17317094

申请日：2021-05-11

Applicant: LendingClub Bank, National Association

Inventor： Aaron Brown ,  Samantha Puth

IPC: G06K9/00 ,  G06V30/416 ,  G06T1/00 ,  G06V30/10

CPC classification number: G06V30/416 ,  G06T1/0021 ,  G06T2201/0062 ,  G06T2201/0065 ,  G06V30/10 ,  G06V2201/10

Abstract: Techniques for automatically attaching optical character recognition data to images are provided. The techniques include receiving an image file containing an image and performing optical character recognition on the image to generate text output. The techniques then continue by identifying a particular text item from within the generated text output and determining that the particular text item is a value for particular corresponding key. Then metadata that indicates that the particular text item is a value for the particular key is stored in the image file.

公开(公告)号：US20170329942A1

公开(公告)日：2017-11-16

申请号：US15593262

申请日：2017-05-11

Applicant: MARKANY INC.

Inventor： Jonguk CHOI

IPC: G06F21/16 ,  G06T1/00

CPC classification number: G06F21/10 ,  G06F21/16 ,  G06F21/602 ,  G06F2221/0733 ,  G06F2221/0737 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0062 ,  G06T2201/0064 ,  H04L9/088 ,  H04L63/0428 ,  H04L63/10 ,  H04L2209/127 ,  H04L2209/603 ,  H04L2209/608

Abstract: One aspect of the present invention discloses a device for content security. The device includes: an application execution unit configured to generate and control content in response to a content control command requested by a user; and a DRM agent configured to communicate with the application execution unit, to detect the content control command generated by the application execution unit, and to perform control on the content, and the DRM agent comprises a tracing module configured to insert security information into the content in order to prevent and trace content leakage.