公开(公告)号：US07899205B2

公开(公告)日：2011-03-01

申请号：US10896251

申请日：2004-07-21

Applicant: Jason Charles Pelly ,  Daniel Warren Tapson ,  Mark Julian Russell

Inventor： Jason Charles Pelly ,  Daniel Warren Tapson ,  Mark Julian Russell

IPC: G06K9/00

CPC classification number: G11B20/00086 ,  G06T1/005 ,  G06T1/0085 ,  G06T7/0002 ,  G06T2201/0063 ,  G06T2201/0065 ,  G11B20/00123 ,  G11B20/00173 ,  G11B2020/10537 ,  H04N21/8358

Abstract: A method of detecting a version of input data content, there being a plurality of different versions of said data content, in which: said data content is arranged as two or more segments according to a segmentation pattern; and said versions of said data content are identifiable by corresponding identification data patterns by which at least some of said segments have respective identification data; said method comprising the steps of: (i) detecting said identification data in respect of said segments of said input data content; (ii) comparing said detected identification data with said identification data patterns corresponding to said different versions of said data content; and (iii) detecting that said input data content comprises at least a contribution from a certain version of said data content if a sum of matches obtained between said detected identification data and said identification data pattern for said certain version exceeds a threshold number.

Abstract translation: 一种检测输入数据内容的版本的方法，存在所述数据内容的多个不同版本，其中：根据分割模式将所述数据内容排列为两个或多个片段; 并且所述数据内容的所述版本可由对应的识别数据模式识别，通过该标识数据模式，所述段中的至少一些具有相应的标识数据; 所述方法包括以下步骤：（i）根据所述输入数据内容的所述段检测所述识别数据; （ii）将所述检测到的识别数据与对应于所述数据内容的所述不同版本的所述识别数据模式进行比较; 以及（iii）如果在所述检测到的识别数据与所述特定版本的所述识别数据模式之间获得的匹配之和超过阈值，则检测所述输入数据内容至少包括来自所述数据内容的特定版本的贡献。

公开(公告)号：US07844052B2

公开(公告)日：2010-11-30

申请号：US11263373

申请日：2005-10-31

Applicant: Daniel Warren Tapson

Inventor： Daniel Warren Tapson

IPC: H04K1/04

CPC classification number: G06T1/0028 ,  G06F21/10 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0065 ,  G06T2201/0202 ,  H04L9/0662 ,  H04L9/0869 ,  H04L9/0891 ,  H04L63/0428 ,  H04L2209/608

Abstract: An encoding data processing apparatus is arranged to generate a marked copy of an item of material by introducing at least one code word into a copy of the material item, the code word being arranged to identify a payload data word. The encoding apparatus comprises an encryption circuit operable to receive a payload encryption key and to receive the payload data word, and to encrypt the payload data word using the payload encryption key. A pseudo random number generator receives the encrypted payload data and a finger print key and generates the code word having a plurality of code word coefficients using the encrypted payload as a seed for the pseudo random number generator and the finger print key. A combiner combines the code word with the material to form the marked copy of the material item. The encoding apparatus may form part of a media terminal for marking material items with the code words, when the material items are to be reproduced. A more secure system for reproducing watermarked material can be formed using the encoding apparatus in which the payload data is encrypted and used as a seed for the pseudo random number generator with the finger print key to generate the code word coefficients. The code word is thereby generated from a finger print key and an encrypted seed, which provides an improved level of security against an attack aimed at compromising correction detection of a code word in a mark material item.

Abstract translation: 编码数据处理装置被配置为通过将至少一个代码字引入到材料项目的副本中来生成物料项目的标记副本，该代码字被安排为识别有效载荷数据字。 编码装置包括可操作以接收有效载荷加密密钥并接收有效载荷数据字的加密电路，并且使用有效载荷加密密钥加密有效载荷数据字。 伪随机数生成器接收加密的有效载荷数据和指纹密钥，并且使用加密的有效载荷生成具有多个码字系数的码字作为伪随机数发生器和指纹密钥的种子。 组合器将代码字与材料组合以形成材料项目的标记副本。 当要再现物料时，编码装置可以形成用于用代码字标记物料的介质终端的一部分。 可以使用其中有效载荷数据被加密并用作具有指纹密钥的伪随机数发生器的种子的编码装置来形成用于再现水印材料的更安全的系统，以生成码字系数。 因此，代码字由指纹密钥和加密的种子生成，这为针对危害标记材料项目中的代码字的校正检测的攻击提供了改进的安全级别。

公开(公告)号：US07792322B2

公开(公告)日：2010-09-07

申请号：US11261555

申请日：2005-10-28

Applicant: Daniel Warren Tapson

Inventor： Daniel Warren Tapson

IPC: G06K9/00 ,  G06K9/36 ,  G06K9/46 ,  G06K15/00 ,  H04N1/40

CPC classification number: G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0202

Abstract: An encoding data processing apparatus is arranged to generate a marked copy of an image by introducing a code word into a copy of the image. The apparatus comprises a code word generator operable to generate the code word. The encoding apparatus includes an image perception analyser and a strength adapter. The image perception analyser is operable to receive the image and to generate weighting factors. A combiner is operable to combine the weighted code word with the image. The image perception analyser includes a contrast masking engine, a smoothness compensation engine and a compensation combiner. The weighting factor has an effect of reducing the code word coefficients for image parts having lower relative contrast measures. A compensation combiner is operable to combine the compensation factors with the weighting factor. The likelihood of a code word being perceivable when the code word is combined with an image is reduced.

Abstract translation: 编码数据处理装置被布置为通过将代码字引入图像的副本来生成图像的标记副本。 该装置包括可操作以产生码字的码字发生器。 编码装置包括图像感知分析器和强度适配器。 图像感知分析器可操作以接收图像并产生加权因子。 组合器可操作以将加权码字与图像组合。 图像感知分析器包括对比度掩蔽引擎，平滑度补偿引擎和补偿组合器。 加权因子具有减少具有较低相对对比度测量的图像部分的码字系数的效果。 补偿组合器可操作以将补偿因子与加权因子组合。 当代码字与图像组合时，代码字可感知的可能性降低。

公开(公告)号：US07609850B2

公开(公告)日：2009-10-27

申请号：US11296797

申请日：2005-12-07

Applicant: Daniel Warren Tapson

Inventor： Daniel Warren Tapson

IPC: G06K9/00

CPC classification number: G06T7/0002 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0081 ,  H04N1/32154 ,  H04N2201/3233 ,  H04N2201/327

Abstract: A data processing apparatus includes a registration processor that divides a frame of a water marked image into a plurality of image blocks. For each of the image blocks, an observed probability of possible distortion vectors representing shifts of the image block with respect to positions of the block in the original version of the image is estimated. For each of the image blocks, forward and backward probability distribution estimates of possible distortion vectors within the image block are generated recursively from the respective observed probability of distortion vectors for the image block and forward and backward probability distribution estimates determined respectively from previous and subsequent image blocks for a predetermined path through the blocks. For each image block, the forward and backward probability distribution estimates and the observed probability of distortion vector are combined to form a most likely distortion vector estimate.

Abstract translation: 数据处理装置包括将水印图像的帧划分成多个图像块的注册处理器。 对于每个图像块，估计表示图像块相对于图像的原始版本中的位置的移位的可能失真向量的观察概率。 对于每个图像块，图像块中可能的失真向量的向前和向后概率分布估计是从对于图像块的失真向量的相应观察概率和分别从先前和后续图像确定的前向和后向概率分布估计递归地生成的 通过块的预定路径的块。 对于每个图像块，将前向和后向概率分布估计以及所观察到的失真向量概率组合以形成最可能的失真向量估计。

公开(公告)号：US20090257618A1

公开(公告)日：2009-10-15

申请号：US11721343

申请日：2005-12-06

Applicant: Daniel Warren Tapson ,  Daniel Luke Hooper

Inventor： Daniel Warren Tapson ,  Daniel Luke Hooper

IPC: G06K9/00 ,  G06K9/36

CPC classification number: G06T1/005 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  G06T2201/0083

Abstract: A data processing apparatus registers an image encoded with a two-dimensional water mark pattern. The water mark includes for each image frame a water mark frame pattern of water mark blocks. The water mark pattern includes plural regions each including one water mark block selected from a predetermined set of possible water mark blocks based on a key sequence. The key sequence provides a predetermined sequence of selected water mark blocks to form the water mark pattern of each frame to provide a predetermined sequence of water marked frames. The data processing apparatus includes a block match processor generating block match probabilities including for each region of a current frame of the water marked image a probability surface of possible distortion vectors for each possible water mark block of the set of possible water marked blocks that may have been added to that region of the image frame.

Abstract translation: 数据处理装置登记用二维水印图案编码的图像。 水印包括每个图像帧水印块的水印框图案。 水印图案包括多个区域，每个区域包括基于键序列从预定的一组可能的水印块中选择的一个水印块。 键序列提供预定顺序的选定水印块，以形成每个帧的水印图案，以提供预定的水印框架序列。 数据处理装置包括块匹配处理器，生成块匹配概率，包括对于水印图像的当前帧的每个区域，可能具有可能的水印块的可能的水印块的可能的水印块的可能失真向量的概率表面 被添加到图像帧的该区域。

公开(公告)号：US07487355B2

公开(公告)日：2009-02-03

申请号：US10317631

申请日：2002-12-12

Applicant: Jason Charles Pelly ,  Daniel Warren Tapson

Inventor： Jason Charles Pelly ,  Daniel Warren Tapson

IPC: H04L9/00 ,  G06K9/00 ,  G09C3/00 ,  G09C5/00 ,  H04N7/167

CPC classification number: H04N1/32154 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0063 ,  H04N1/32165 ,  H04N2201/3236 ,  H04N2201/324 ,  H04N2201/327

Abstract: A watermarking system comprises an encoding data processor operable to generate at least one marked version of an original item of material by introducing one of a predetermined set of code words into a copy of the original material item. The encoding data processor is arranged to form other code words of the set by cyclically shifting a first code word. The system includes a detecting data processor operable to identify the code word in the marked material item. The detecting data processor is operable to recover the code word from the marked material item and to form a Fourier transform of the recovered code word and a Fourier transform of the first code word of the set. The data detecting processor forms correlation samples by forming an inverse transform of a combination of the recovered and the first code word. Each of the correlation value samples provides the correlation value for one of the set of code words. A computationally efficient way of calculating the correlation for each code word in the set is thereby provided. As a result a time taken to detect a code word present in a marked material item is improved. The watermarking system finds particular application in identifying a point of distribution of pirate copies of video material generated by capturing the watermarked image, using, for example, a camcorder in a cinema.

Abstract translation: 一种水印系统包括：编码数据处理器，可操作以通过将预定的一组代码字中的一个引入原始物料的副本来产生原始物料的至少一个标记版本。 编码数据处理器被布置成通过循环移位第一码字来形成集合的其他码字。 该系统包括检测数据处理器，可操作以识别标记物料中的代码字。 检测数据处理器可操作以从标记的物料项目中恢复代码字，并形成恢复的代码字的傅立叶变换和该组的第一代码字的傅里叶变换。 数据检测处理器通过形成恢复和第一码字的组合的逆变换来形成相关样本。 每个相关值样本提供该组码字之一的相关值。 从而提供了计算集合中的每个码字的相关性的计算有效的方法。 结果，改进了用于检测标记材料项目中存在的代码字所花费的时间。 水印系统在识别通过使用例如电影院中的摄像机捕获水印图像而产生的视频资料的盗版副本的分布点上发现了特定的应用。

公开(公告)号：US07206430B2

公开(公告)日：2007-04-17

申请号：US10317736

申请日：2002-12-12

Applicant: Jason Charles Pelly ,  Daniel Warren Tapson

Inventor： Jason Charles Pelly ,  Daniel Warren Tapson

IPC: G06K9/00 ,  G06K9/32 ,  G06K9/36 ,  G06K9/46 ,  H04L9/00

CPC classification number: H04N1/32154 ,  G06T1/005 ,  G06T2201/0052 ,  G06T2201/0063 ,  H04N1/32165 ,  H04N2201/324 ,  H04N2201/327

Abstract: A watermarking system comprises an encoding data processor operable to generate at least one marked version of an original item of material by introducing one of a predetermined set of code words into a copy of the original material item. The code words are generated from a pseudo-random number generator initialised with a seed value. The seed value is used to identify the marked material item, from the code word produced from the seed value. The watermarking system also includes a detecting data processor operable to identify a particular marked copy of the material item by recovering a code word from the marked material item and correlating all code words in the set of code words with the recovered code word. The detecting data processing apparatus also includes a registration processor operable to associate samples of the original material item with corresponding samples of the marked material item to which corresponding code word coefficients may have been added. By registering the original material item with the marked material item, a likelihood of correctly identifying the version of the marked material item is improved, reducing a false negative detection probability.

Abstract translation: 一种水印系统包括：编码数据处理器，可操作以通过将预定的一组代码字中的一个引入原始物料的副本来产生原始物料的至少一个标记版本。 码字由用种子值初始化的伪随机数生成器生成。 种子值用于从种子值生成的代码字中识别标记的物料项目。 水印系统还包括检测数据处理器，其可操作以通过从标记的物料项目中恢复代码字来识别物料项目的特定标记副本，并将代码字集合中的所有代码字与恢复的代码字相关联。 该检测数据处理装置还包括一个登记处理器，其可操作地将原始物料项目的样本与相应代码字系数可能被添加到的标记物料项目的对应样品相关联。 通过使用标记的物料项目登记原始物料项目，可以改善正确识别标记物料的版本的可能性，从而减少假阴性检测概率。

公开(公告)号：US07002603B2

公开(公告)日：2006-02-21

申请号：US10223542

申请日：2002-08-19

Applicant: Daniel Warren Tapson

Inventor： Daniel Warren Tapson

IPC: G09G5/00

CPC classification number: G06T5/10 ,  G06T5/006 ,  G06T2207/20056 ,  G06T2207/20064

Abstract: A data processing apparatus is operable to determine non-linear distortion applied to an image in which template signals have been introduced into at least first and second frequency bands of the image respectively, the template signals having a predetermined relationship with each other. The apparatus comprises an image dividing processor operable to generate data representative of selected parts of the image, a transform detection processor operable to generate at least one parameter representative of a linear transformation applied to each of the parts of the image, and a non-linear transform processor operable to estimate parameters of a non-linear transformation representative of the non-linear distortion applied to the image from the linear transform parameters of at least two parts of the image.The data processing apparatus provides a facility for determining parameters of a non-linear transform representative of the distortion applied to the image as a whole. The distortion is therefore evaluated by generating linear transform parameters for different parts of the image and then determining the non-linear transform parameters in accordance with a relationship with the linear transform parameters. The linear transform may be the Affine transform, the parameters determined being Affine transform parameters. The non-linear transform may be the Perspective transform or a Polynomial transform, the non-linear transform parameters being evaluated from the linear transform parameters.

Abstract translation: 数据处理装置可操作以分别将模板信号已经被引入到图像的至少第一和第二频带中的图像确定的非线性失真，模板信号彼此具有预定的关系。 该装置包括：图像分割处理器，可操作以产生表示图像的选定部分的数据;变换检测处理器，可操作以生成表示施加到图像的每个部分的线性变换的至少一个参数，以及非线性 变换处理器，其可操作以根据图像的至少两个部分的线性变换参数来估计代表施加到图像的非线性失真的非线性变换的参数。