公开(公告)号：US07231522B2

公开(公告)日：2007-06-12

申请号：US09969778

申请日：2001-10-04

Applicant: Tomochika Murakami ,  Keiichi Iwamura

Inventor： Tomochika Murakami ,  Keiichi Iwamura

IPC: H04L9/00

CPC classification number: G06T1/0028 ,  G06T2201/0203 ,  H04N1/32144 ,  H04N2201/3225 ,  H04N2201/327

Abstract: An object of the present invention is to assuredly provide image data with the position of a region of interest in an image represented by the image data. In order to achieve this object, position information for specifying a region of interest within the image is embedded so as not to be recognized by human eyes, using a digital-watermark technique.

Abstract translation: 本发明的目的是确保在由图像数据表示的图像中提供具有感兴趣区域的位置的图像数据。 为了实现该目的，使用数字水印技术嵌入用于指定图像内的感兴趣区域的位置信息，使得不被人眼识别。

公开(公告)号：US20060239500A1

公开(公告)日：2006-10-26

申请号：US11110537

申请日：2005-04-20

Applicant: Thomas Meyer ,  Josslyn Meyer

Inventor： Thomas Meyer ,  Josslyn Meyer

IPC: G09C5/00 ,  G06K9/00 ,  H04L9/00 ,  G06K9/36

CPC classification number: H04N1/32187 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0203 ,  H04N1/32165 ,  H04N1/32277 ,  H04N1/3232 ,  H04N1/32341 ,  H04N1/32347 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A novel technique for embedding a reversible watermark into digital media files, and then removing this watermark, in whole or in part, at some later date, without access to the original media file, which may consist of such media types as audio, image, video, 3-D and the like; such watermarks being primarily intended for, though not limited to, the introduction by a reversible mathematical operation of perceptually significant elements, including but not limited to pseudorandom noise, such that the degraded media is suitable merely for demonstration or trial purposes, and with the watermark resistant to removal without proper authorization; but with authorization, can then be removed from the media file to prepare it for its ultimate high-quality use.

Abstract translation: 一种用于将可逆水印嵌入数字媒体文件中的新技术，然后在稍后的日期全部或部分地去除该水印，而不访问原始媒体文件，其可以由诸如音频，图像， 视频，3-D等; 这些水印主要意图用于但不限于通过可感知的数学运算引入感知有意义的元素，包括但不限于伪随机噪声，使得降解介质仅适用于示范或试验目的，并且与水印 在没有适当授权的情况下，不得移除; 但是通过授权，可以从媒体文件中删除，以备其最终的高品质使用。

公开(公告)号：US07127079B2

公开(公告)日：2006-10-24

申请号：US10006051

申请日：2001-12-06

Applicant: Stephen Mark Keating ,  Daniel Warren Tapson ,  Jason Charles Pelly

Inventor： Stephen Mark Keating ,  Daniel Warren Tapson ,  Jason Charles Pelly

IPC: G06K9/00

CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203 ,  H04N1/3217 ,  H04N1/32187 ,  H04N19/467 ,  H04N19/48 ,  H04N19/63 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/3284

Abstract: An image processing apparatus is operable to embed data into an image. The apparatus comprises a combining processor operable to introduce the data into a transform domain representation providing a plurality of sub-bands divided by spatial frequency components, and, in combination with a transform processor, to combine the data with the image in one of a transform domain form, the transform processor generating a transform domain form of the image, the data being combined with the image by the combining processor in the transform domain, and the transform processor generating a spatial domain representation of the combined image and data, or a spatial domain form of the image, the transform processor generating a spatial domain representation of the transform domain data, the data being combined with the image by the combining processor in the spatial domain. The data is introduce into at least one of the sub-bands in a scan direction, the sub-band representing in the transform domain low spatial frequencies of the image in one direction and high spatial frequencies of the image in another direction, the scan direction being in the same direction in the sub-band as the direction of the low spatial frequencies of the image. Since the low spatial frequencies of the image correspond to the lower energy transform domain components of the image, embedding the data in the same direction as the lower spatial frequencies provides an improved likelihood of correctly detecting the embedded data and correspondingly as a result of the improved detection likelihood, the energy of the embedded data signal can be reduced, thereby reducing any possible visual impairments to the image in the spatial domain.

公开(公告)号：US06804372B1

公开(公告)日：2004-10-12

申请号：US09413134

申请日：1999-10-06

Applicant: Tetsujiro Kondo ,  Yoshinori Watanabe ,  Kenji Tanaka

Inventor： Tetsujiro Kondo ,  Yoshinori Watanabe ,  Kenji Tanaka

IPC: G06K900

CPC classification number: G06T1/0035 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0203 ,  H04N1/32144 ,  H04N1/32224 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N19/00 ,  H04N19/46 ,  H04N2005/91335

Abstract: The invention relates to a coding apparatus for embedding second data into first data without deteriorating the first data and a decoding apparatus for decoding coded data into original first data and second data without deteriorating those data. The invention provides a coding apparatus which has a memory for storing at least partial data of first data, and embeds second data into the first data by rearranging, according to the second data, the at least partial data of the first data that is stored in the memory. The invention also provides a coding apparatus for decoding coded data in which second data is embedded and at least partial data of the coded data has been subjected to rearrangement by using one of a plurality of rearrangement patterns. The decoding apparatus calculates correlation between adjacent data for each rearrangement pattern, and decodes the original first data and the second data according to a rearrangement pattern that is determined based on the correlation.

Abstract translation: 本发明涉及一种用于将第二数据嵌入第一数据而不使第一数据恶化的编码装置，以及用于将编码数据解码为原始第一数据和第二数据的解码装置，而不会使这些数据恶化。 本发明提供了一种编码装置，其具有用于存储第一数据的至少部分数据的存储器，并且通过根据第二数据重新排列存储在第一数据中的第一数据的至少部分数据，将第二数据嵌入到第一数据中 记忆。 本发明还提供了一种编码装置，用于对其中嵌入第二数据的编码数据进行解码，并且通过使用多个重排模式中的一种来编码数据的至少部分数据已被重新排列。 解码装置计算每个重排模式的相邻数据之间的相关性，并且根据基于相关性确定的重排模式对原始第一数据和第二数据进行解码。

公开(公告)号：US20040001611A1

公开(公告)日：2004-01-01

申请号：US10608542

申请日：2003-06-30

Inventor： Mehmet Utku Celik ,  Gaurav Sharma ,  Ahmet Murat Tekalp

IPC: G06K009/00 ,  G06K009/36

CPC classification number: G06T1/0028 ,  G06T1/005 ,  G06T2201/0083 ,  G06T2201/0203 ,  G06T2201/0601

Abstract: A lossless, reversible data embedding technique uses a generalization of least-significant-bit modification. The portions of the signal that are susceptible to embedding distortion are compressed and sent as part of the embedded payload. A prediction-based conditional entropy coder uses unaltered portions of the host signal to improve lossless data capacity.

Abstract translation: 无损，可逆的数据嵌入技术使用最小有效位修改的泛化。 易于嵌入失真的信号部分被压缩并作为嵌入式有效载荷的一部分发送。 基于预测的条件熵编码器使用主机信号的未改变的部分来改善无损数据容量。

公开(公告)号：US20020141611A1

公开(公告)日：2002-10-03

申请号：US10006051

申请日：2001-12-06

Inventor： Stephen Mark Keating ,  Daniel Warren Tapson ,  Jason Charles Pelly

IPC: G06K009/00

CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0203 ,  H04N1/3217 ,  H04N1/32187 ,  H04N19/467 ,  H04N19/48 ,  H04N19/63 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/3284

Abstract: An image processing apparatus is operable to embed data into an image. The apparatus comprises a combining processor operable to introduce the data into a transform domain representation providing a plurality of sub-bands divided by spatial frequency components, and, in combination with a transform processor, to combine the data with the image in one of a transform domain form, the transform processor generating a transform domain form of the image, the data being combined with the image by the combining processor in the transform domain, and the transform processor generating a spatial domain representation of the combined image and data, or a spatial domain form of the image, the transform processor generating a spatial domain representation of the transform domain data, the data being combined with the image by the combining processor in the spatial domain. The data is introduce into at least one of the sub-bands in a scan direction, the sub-band representing in the transform domain low spatial frequencies of the image in one direction and high spatial frequencies of the image in another direction, the scan direction being in the same direction in the sub-band as the direction of the low spatial frequencies of the image. Since the low spatial frequencies of the image correspond to the lower energy transform domain components of the image, embedding the data in the same direction as the lower spatial frequencies provides an improved likelihood of correctly detecting the embedded data and correspondingly as a result of the improved detection likelihood, the energy of the embedded data signal can be reduced, thereby reducing any possible visual impairments to the image in the spatial domain.

Abstract translation: 图像处理装置可操作以将数据嵌入到图像中。 该装置包括组合处理器，其可操作以将数据引入到提供由空间频率分量分割的多个子带的变换域表示中，并且与变换处理器组合以将数据与图像中的一个组合在一个变换 生成图像的变换域形式的变换处理器，通过变换域中的组合处理器与图像组合的数据，以及生成组合图像和数据的空间域表示的变换处理器，或空间 所述变换处理器生成所述变换域数据的空间域表示，所述数据由所述组合处理器在所述空间域中与所述图像组合。 在扫描方向上将数据引入到至少一个子带中，子带在变换域中表示一个方向上的图像的低空间频率，另一个方向上的图像的高空间频率，扫描方向 在子带中与图像的低空间频率的方向处于相同的方向。 由于图像的低空间频率对应于图像的较低能量变换域分量，因此在与较低空间频率相同的方向上嵌入数据提供了正确检测嵌入数据的改进的可能性，并且相应地由于改进的结果 检测可能性，可以减少嵌入数据信号的能量，从而减少对空间域中的图像的任何可能的视觉损伤。

公开(公告)号：US09800879B2

公开(公告)日：2017-10-24

申请号：US14955082

申请日：2015-12-01

Applicant: XEROX CORPORATION

Inventor： Arindam Das ,  Mahesh Ramasamy ,  Punitha Puttuswamy

IPC: G06K9/36 ,  H04N19/36 ,  H04N19/187 ,  H04N19/136 ,  H04N19/467

CPC classification number: H04N19/36 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0203 ,  G09C5/00 ,  H04L9/14 ,  H04L9/3226 ,  H04N19/136 ,  H04N19/187 ,  H04N19/467

Abstract: Methods and systems for providing multi-layer reversible data hiding are disclosed. According to the methods and systems, multi-layer reversible data hiding process may be implemented in two stages. The first stage provides embedding of the sensitive data on a secret layer and hiding the secret layer behind single or multiple layers for secure transmission for intended recipient. Subsequently, the second stage is concerned about retrieving or extracting the hidden sensitive data through proper authentication. In the extraction process, the recipient needs to provide the right authentication code for each of embedded layer in order to reach to the secret layer. Upon unsuccessful authentication of any embedded layer, the proposed method enables an intelligent security technique termed as SMART (Suspect Malicious Activity on Rich Tract), which ensures to protect the sensitive data by suspecting the attempts of theft and intrusion.

公开(公告)号：US20170155916A1

公开(公告)日：2017-06-01

申请号：US14955082

申请日：2015-12-01

Applicant: XEROX CORPORATION

Inventor： Arindam Das ,  Mahesh Ramasamy ,  Punitha Puttuswamy

IPC: H04N19/36 ,  H04N19/136 ,  H04N19/467 ,  H04N19/187

CPC classification number: H04N19/36 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0203 ,  G09C5/00 ,  H04L9/14 ,  H04L9/3226 ,  H04N19/136 ,  H04N19/187 ,  H04N19/467

Abstract: Methods and systems for providing multi-layer reversible data hiding are disclosed. According to the methods and systems, multi-layer reversible data hiding process may be implemented in two stages. The first stage provides embedding of the sensitive data on a secret layer and hiding the secret layer behind single or multiple layers for secure transmission for intended recipient. Subsequently, the second stage is concerned about retrieving or extracting the hidden sensitive data through proper authentication. In the extraction process, the recipient needs to provide the right authentication code for each of embedded layer in order to reach to the secret layer. Upon unsuccessful authentication of any embedded layer, the proposed method enables an intelligent security technique termed as SMART (Suspect Malicious Activity on Rich Tract), which ensures to protect the sensitive data by suspecting the attempts of theft and intrusion.

公开(公告)号：US09380300B1

公开(公告)日：2016-06-28

申请号：US14068830

申请日：2013-10-31

Applicant: Crimson Corporation

Inventor： David Aaron Jensen ,  Donald Saxby

IPC: G06K9/46 ,  H04N19/467 ,  H04N19/182

CPC classification number: H04N19/00557 ,  G06T1/0028 ,  G06T2201/0083 ,  G06T2201/0203 ,  H04N19/21

Abstract: A method for sending a screen image by a computing device is described. A modification image representing a modified region of the screen image is determined. The modification image has a lossless format. Location information is encoded in one or more alpha channels of the modification image. The modification image is sent.

Abstract translation: 描述了由计算设备发送屏幕图像的方法。 确定表示屏幕图像的修改区域的修改图像。 修改图像具有无损格式。 位置信息被编码在修改图像的一个或多个Alpha通道中。 发送修改图像。

公开(公告)号：US20150350486A1

公开(公告)日：2015-12-03

申请号：US14759254

申请日：2014-01-06

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Hyoung Joong KIM

IPC: H04N1/32 ,  G06T1/00 ,  H04N19/467

CPC classification number: H04N1/32277 ,  G06T1/0021 ,  G06T1/0035 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0203 ,  H04N1/32347 ,  H04N19/467

Abstract: A reversible information hiding apparatus, comprises: an image compressing unit that encodes an original image file to output a compressed image file by applying a preset compression format; an information hiding processing unit that divides a bit stream of the compressed image file into a plurality of bit blocks each having a preset length, allocates, to the plurality of the bit blocks, a plurality of hiding information bits obtained from dividing preset hiding information data into preset length units, and converts bit values of the bit blocks based on values of the allocated hiding information bits; and an information-hidden image providing unit that provides a reversible information extracting apparatus with the information-hidden image file comprising the bit blocks, of which the bit values have been converted.

Abstract translation: 一种可逆信息隐藏装置，包括：图像压缩单元，其通过应用预设压缩格式对原始图像文件进行编码以输出压缩图像文件; 将压缩图像文件的比特流分割成具有预设长度的多个比特块的信息隐藏处理单元向多个比特块分配从分割预设隐藏信息数据获得的多个隐藏信息比特 并根据所分配的隐藏信息比特的值来转换比特块的比特值; 以及信息隐藏图像提供单元，其向可逆信息提取装置提供包含位值已被转换的位块的信息隐藏图像文件。