公开(公告)号：US08270665B2

公开(公告)日：2012-09-18

申请号：US12363344

申请日：2009-01-30

Applicant: GuoRong Xuan ,  Yun-Qing Shi

Inventor： GuoRong Xuan ,  Yun-Qing Shi

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0203

Abstract: A method of hiding data comprising creating a histogram of an attribute of a first data set. The histogram includes occurrences of the attribute. Two adjacent occurrences are selected where a count of one of the two adjacent occurrences is zero. A second data set is embedded in data of the first data set associated with the selected adjacent occurrences.

Abstract translation: 一种隐藏数据的方法，包括创建第一数据集的属性的直方图。 直方图包括属性的出现。 选择两个相邻出现次数，其中两个相邻出现中的一个的计数为零。 将第二数据集嵌入与所选择的相邻出现相关联的第一数据集的数据中。

公开(公告)号：US08265334B2

公开(公告)日：2012-09-11

申请号：US12244453

申请日：2008-10-02

Applicant: Chang-Dong Yoo ,  Sun-Il Lee

Inventor： Chang-Dong Yoo ,  Sun-Il Lee

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0203

Abstract: Enhanced method for embedding watermarks based on integer-to-integer wavelet transform is provided. The method according to the present invention includes the steps of: (A) dividing an original image (X×Y) to a plurality of image blocks (M×N); (B) selecting image blocks for embedding an location information that indicates image blocks to be watermarked; (C) embedding the location information into the image blocks selected in the step (B); and (D) embedding watermarks into remaining image blocks which are not selected in the step (B).

Abstract translation: 提供了一种基于整数小波变换嵌入水印的增强方法。 根据本发明的方法包括以下步骤：（A）将原始图像（X×Y）分割成多个图像块（M×N）; （B）选择用于嵌入指示要加水印的图像块的位置信息的图像块; （C）将位置信息嵌入到在步骤（B）中选择的图像块中; 和（D）将水印嵌入到在步骤（B）中未被选择的剩余图像块中。

公开(公告)号：US08098883B2

公开(公告)日：2012-01-17

申请号：US12574626

申请日：2009-10-06

Applicant: Adnan M. Alattar ,  John Stach ,  Jun Tian

Inventor： Adnan M. Alattar ,  John Stach ,  Jun Tian

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32149 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A data set is transformed to a domain in which values are robust to distortion. The values are then expanded to carry auxiliary data. To recover the data, the data set is transformed into the domain, further transformed to get a set of possibly expanded data, and then processed to extract auxiliary data from the expanded values.

Abstract translation: 将数据集转换为其中值对于失真具有鲁棒性的域。 然后扩展这些值以携带辅助数据。 为了恢复数据，将数据集转换为域，进一步转换以获得一组可能扩展的数据，然后处理从扩展值中提取辅助数据。

公开(公告)号：US20120002877A1

公开(公告)日：2012-01-05

申请号：US13137793

申请日：2011-09-13

Applicant: Jun Takahashi ,  Shohei Nakagata ,  Kensuke Kuraki ,  Taizo Anan

Inventor： Jun Takahashi ,  Shohei Nakagata ,  Kensuke Kuraki ,  Taizo Anan

IPC: G06K9/40 ,  G06K9/46

CPC classification number: H04N1/4486 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0203

Abstract: When creating a marker, an encryption apparatus extracts each pixel value in a region and allows a storing unit to save, as restoration information, the high-order bits of each extracted pixel value. Then, the encryption apparatus creates a marker by changing the high-order bits of the pixel value in a region in which the marker is created and embeds encrypted information in an encrypted region specified by the marker. When decoding the encrypted information, a decoding apparatus detects the marker from a digital image, decodes the encrypted information in the encrypted region specified by the marker, and overwrites bits contained in the restoration information with the high-order bits of the pixel value of the marker.

Abstract translation: 当创建标记时，加密装置提取区域中的每个像素值，并且允许存储单元将恢复信息保存在每个提取的像素值的高位中。 然后，加密装置通过改变创建标记的区域中的像素值的高位来创建标记，并将加密信息嵌入由标记指定的加密区域中。 当对加密信息进行解码时，解码装置从数字图像中检测标记，对由标记指定的加密区域中的加密信息进行解码，并且以包含在恢复信息中的比特的高位 标记。

公开(公告)号：US08059815B2

公开(公告)日：2011-11-15

申请号：US10435612

申请日：2003-05-08

Applicant: Neil E. Lofgren ,  Burt W. Perry ,  John Stach

Inventor： Neil E. Lofgren ,  Burt W. Perry ,  John Stach

IPC: H04N7/167

CPC classification number: H04N1/32149 ,  G06T1/0028 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32229 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A reversible watermarking program transforms a host data file into a logical storage unit for auxiliary data files by embedding the auxiliary files in the data stored in the host data file. The reversible watermark modifies host data such as an image, audio, video, or software code, to carry auxiliary data. For perceptual content such as visual or audio media, the reversible watermark can maintain a desired level of perceptual quality, effectively hiding the auxiliary data in the host data. The reversible watermark enables the original host data prior to modifications due to the embedding to be restored.

Abstract translation: 可逆水印程序通过将辅助文件嵌入存储在主机数据文件中的数据中，将主机数据文件转换为用于辅助数据文件的逻辑存储单元。 可逆水印修改诸如图像，音频，视频或软件代码的主机数据以携带辅助数据。 对于诸如视觉或音频媒体的感知内容，可逆水印可以保持期望的感知质量水平，有效地将辅助数据隐藏在主机数据中。 由于嵌入被恢复，可逆水印在修改之前使原始主机数据成为可能。

公开(公告)号：US08036862B2

公开(公告)日：2011-10-11

申请号：US12204309

申请日：2008-09-04

Applicant: Wolfgang Funk

Inventor： Wolfgang Funk

IPC: G06F7/60 ,  G06F19/00

CPC classification number: G06T1/0028 ,  G06T17/30 ,  G06T2201/0051 ,  G06T2201/0203

Abstract: A watermark is embossed into a model of a linear or surface shape, especially a non-uniform rational B-splines model. The model has a plurality of splines, the combination of which forms the shape. Control points are assigned to the splines such that a course of the respectively associated spline can be modified and thus be controlled by changing the position of the control points and/or weights of the control points. Nodes which are located in a section of the shape that is formed by the respectively associated spline are allocated to the splines. In order to change the shape (the modified curve runs through point Cmod) when a watermark is embossed into the model, the position of at least one control point is modified, the weight by which a control point affects the shape and thus influences at least one area of the shape is modified, and/or an additional control point is inserted into the model. At least one additional node is inserted into the model (new node at u=1.1875 on the modified curve) in order to obtain information on how the change of the shape can be reversed.

Abstract translation: 水印被压印成线性或表面形状的模型，特别是非均匀有理B样条模型。 该模型具有多个花键，其组合形成形状。 控制点被分配给样条，使得可以修改分别相关联的样条的过程，并且因此通过改变控制点的位置和/或控制点的权重来控制。 位于由分别相关联的样条线形成的形状的部分中的节点被分配给样条。 为了在水印被压印到模型中时改变形状（修改后的曲线贯穿点Cmod），至少一个控制点的位置被修改，控制点对其形状的影响至少影响至少 形状的一个区域被修改，和/或附加的控制点被插入到模型中。 在模型中插入至少一个附加节点（修改曲线上的u = 1.1875处的新节点），以获得关于形状变化如何反转的信息。

公开(公告)号：US20090310819A1

公开(公告)日：2009-12-17

申请号：US12374254

申请日：2006-07-19

Applicant: Kouji Hatano

Inventor： Kouji Hatano

IPC: G06K9/46 ,  G06K9/00

CPC classification number: G06T1/0028 ,  G06F21/6245 ,  G06K9/00228 ,  G06T2201/0203 ,  H04L9/0866 ,  H04L2209/60 ,  H04N7/1675 ,  H04N21/42203 ,  H04N21/4223

Abstract: In the case that media data containing image information of persons are managed, protection of privacy is realized, and an increase in management costs and a deterioration of operability are suppressed.In a media data processing apparatus into which media data containing at least one image information is inputted so as to produce encrypted media data, the media data processing apparatus is equipped with: biological feature extracting unit 10 for extracting a feature of biological information which is related to at least one person contained in said image information from the media data inputted thereinto; and encrypting process unit 20 for partially, or wholly encrypting the media data based upon the feature extracted by the biological feature extracting unit. A feature parameter of a face of the person contained in the media data is utilized.

Abstract translation: 在管理包含人物图像信息的媒体数据的情况下，实现了隐私保护，并且抑制了管理成本的增加和可操作性的恶化。 在其中输入包含至少一个图像信息的媒体数据以便产生加密的媒体数据的媒体数据处理装置中，媒体数据处理装置配备有生物特征提取单元10，用于提取相关的生物信息的特征 至少一个人从所输入的媒体数据中包含在所述图像信息中; 以及加密处理单元20，用于基于由生物特征提取单元提取的特征部分或全部地加密媒体数据。 使用媒体数据中包含的人物的脸部的特征参数。

公开(公告)号：US07606431B2

公开(公告)日：2009-10-20

申请号：US10915806

申请日：2004-08-11

Applicant: Tetsujiro Kondo ,  Naoki Kobayashi

Inventor： Tetsujiro Kondo ,  Naoki Kobayashi

IPC: G06K9/36

CPC classification number: G06T1/0035 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0203

Abstract: An image processing apparatus embeds information into image data without an overhead. The image processing apparatus includes a selection unit for selecting some of the pixels forming the image data. A changing unit embeds the information into the pixels selected by the selection unit by swapping the bits of the values of the selected pixels according to the information.

Abstract translation: 图像处理装置将信息嵌入到图像数据中而不产生开销。 图像处理装置包括用于选择形成图像数据的一些像素的选择单元。 改变单元通过根据该信息交换所选择的像素的值的位，将信息嵌入到由选择单元选择的像素中。

公开(公告)号：US07599518B2

公开(公告)日：2009-10-06

申请号：US11365976

申请日：2006-02-28

Applicant: Adnan M. Alattar ,  John Stach ,  Jun Tian

Inventor： Adnan M. Alattar ,  John Stach ,  Jun Tian

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32149 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

Abstract: Reversible watermarking methods enable auxiliary data to be embedded in data sets, such as images, audio, video and software. The reversible nature of the method enables the original data set to be perfectly restored. Control systems with feedback loops are used to optimize embedding based on distortion or auxiliary data capacity constraints. The watermarking may be applied recursively to embed several layers, where subsequent layers are embedded into a previously watermarked data set. To recover the original data, each layer is extracted and the data restored in reverse order of the embedding. Sets of elements that are expanded to carry auxiliary data in each layer overlap or are interleaved to maximize embedding capacity or quality of the host data.

Abstract translation: 可逆水印方法使辅助数据可以嵌入数据集，如图像，音频，视频和软件。 该方法的可逆性使得能够完美地恢复原始数据集。 具有反馈回路的控制系统用于基于失真或辅助数据容量约束优化嵌入。 可以递归地应用水印以嵌入几个层，其中后续层被嵌入到先前加水印的数据集中。 为了恢复原始数据，提取每一层，并以与嵌入相反的顺序恢复数据。 扩展为在每个层中传送辅助数据的元素的集合重叠或交织以最大化嵌入容量或主机数据的质量。

公开(公告)号：US07324662B2

公开(公告)日：2008-01-29

申请号：US10958033

申请日：2004-10-04

Applicant: Alex Chi Chung Kot ,  Huijuan Yang ,  Haiping Lu

Inventor： Alex Chi Chung Kot ,  Huijuan Yang ,  Haiping Lu

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  G06T2201/0203

Abstract: A method of embedding watermark data into a two-colour (binary) image includes dividing the image into blocks and assessing the suitability of each block to embed a bit of watermark data by assessing whether or not the flipping of a defined pixel in each block affects the visual attributes of said block in manner to be perceptible by the human eye. Data is only embedded in those blocks determined to be suitable for data embedding, by flipping the defined pixel, as required. A recipient of the document may similarly assess which blocks contain watermark data, by assessing the suitability of each block in the document to embed such data. Conveniently, watermark data may be extracted without further information about the data's location within a document.

Abstract translation: 将水印数据嵌入到双色（二进制）图像中的方法包括将图像划分成块并通过评估每个块中定义的像素的翻转是否影响来评估每个块嵌入水印数据位的适合性 所述块的视觉属性以人眼可察觉的方式。 通过根据需要翻转定义的像素，数据仅嵌入确定为适合于数据嵌入的块中。 通过评估文档中每个块的适用性以嵌入这些数据，文档的接收者可以类似地评估哪些块包含水印数据。 方便地，可以提取水印数据而无需关于文档内的数据位置的进一步信息。