Media watermarking by biasing randomized statistics
    1.
    发明授权
    Media watermarking by biasing randomized statistics 有权
    通过偏移随机统计的媒体水印

    公开(公告)号:US07539870B2

    公开(公告)日:2009-05-26

    申请号:US10775791

    申请日:2004-02-10

    IPC分类号: H04L9/00

    摘要: The present invention leverages randomly generated areas with random attributes from two-dimensional media forms to embed information relating to a media's ownership and/or distribution source. This provides a means to establish a media's source despite attacks. By providing embedded user-unique identification, media can enable detection for identifying the source of copied media without the embedded information substantially interfering with the intended purpose of the media itself. In one instance of the present invention, media is transformed into a two-dimensional media form with randomly generated areas having a subset of overlapping areas. User-unique keys are then utilized to determine attributes for each of the areas. This permits creation of statistically unique locations for each user key. The statistical qualities are biased and utilized to determine a logarithmic magnitude watermark value to embed in the media at that location. Detection is performed by utilizing a statistical correlation method to determine a user.

    摘要翻译: 本发明利用具有来自二维媒体形式的随机属性的随机生成区域来嵌入与媒体所有权和/或分发源相关的信息。 这提供了尽管发生攻击而建立媒体来源的手段。 通过提供嵌入式用户唯一标识,媒体可以实现识别复制媒体源的检测,而不会使嵌入的信息基本上干扰媒体本身的预期目的。 在本发明的一个实例中,媒体被转换成具有随机产生的具有重叠区域子集的区域的二维媒体形式。 然后,用户唯一密钥用于确定每个区域的属性。 这允许为每个用户密钥创建统计上唯一的位置。 统计质量被偏置并用于确定嵌入在该位置的介质中的对数幅度水印值。 通过利用统计相关方法来确定用户来进行检测。

    Media watermarking by biasing randomized statistics
    3.
    发明申请
    Media watermarking by biasing randomized statistics 有权
    通过偏移随机统计的媒体水印

    公开(公告)号:US20050175179A1

    公开(公告)日:2005-08-11

    申请号:US10775791

    申请日:2004-02-10

    IPC分类号: G10L19/00 G11B20/00 H04L9/00

    摘要: The present invention leverages randomly generated areas with random attributes from two-dimensional media forms to embed information relating to a media's ownership and/or distribution source. This provides a means to establish a media's source despite attacks. By providing embedded user-unique identification, media can enable detection for identifying the source of copied media without the embedded information substantially interfering with the intended purpose of the media itself. In one instance of the present invention, media is transformed into a two-dimensional media form with randomly generated areas having a subset of overlapping areas. User-unique keys are then utilized to determine attributes for each of the areas. This permits creation of statistically unique locations for each user key. The statistical qualities are biased and utilized to determine a logarithmic magnitude watermark value to embed in the media at that location. Detection is performed by utilizing a statistical correlation method to determine a user.

    摘要翻译: 本发明利用具有来自二维媒体形式的随机属性的随机生成区域来嵌入与媒体所有权和/或分发源相关的信息。 这提供了尽管发生攻击而建立媒体来源的手段。 通过提供嵌入式用户唯一标识,媒体可以实现识别复制媒体源的检测,而不会使嵌入的信息基本上干扰媒体本身的预期目的。 在本发明的一个实例中,媒体被转换成具有随机产生的具有重叠区域子集的区域的二维媒体形式。 然后,用户唯一密钥用于确定每个区域的属性。 这允许为每个用户密钥创建统计上唯一的位置。 统计质量被偏置并用于确定嵌入在该位置的介质中的对数幅度水印值。 通过利用统计相关方法来确定用户来进行检测。

    Estimating orientation angle and translation values of a scanned image
    4.
    发明授权
    Estimating orientation angle and translation values of a scanned image 失效
    估计扫描图像的方位角和平移值

    公开(公告)号:US07729560B2

    公开(公告)日:2010-06-01

    申请号:US12272335

    申请日:2008-11-17

    IPC分类号: G06K9/36

    CPC分类号: G06K9/32

    摘要: Exemplary methods for estimating an orientation angle and a translation values for scanned images are disclosed. The methods described herein may be embodied as logic instructions on a computer-readable medium. In one exemplary implementation meaningful image information is removed from a scanned image, resulting in a transformed image that comprises alternating, parallel lines disposed at an orientation angle relative to an orthogonal axis. The orientation angle may be determined using geometric techniques or statistical correlation techniques, and statistical correlation techniques may be implemented to determine translation values.

    摘要翻译: 公开了用于估计用于扫描图像的取向角度和平移值的示例性方法。 本文描述的方法可以体现为计算机可读介质上的逻辑指令。 在一个示例性实施例中,从扫描图像中去除有意义的图像信息,导致变换图像,其包括以相对于正交轴线的取向角度设置的交替的平行线。 可以使用几何技术或统计相关技术来确定取向角,并且可以实现统计相关技术来确定平移值。

    Systems and methods for embedding media forensic identification markings
    6.
    发明授权
    Systems and methods for embedding media forensic identification markings 有权
    用于嵌入媒体法医识别标记的系统和方法

    公开(公告)号:US08032754B2

    公开(公告)日:2011-10-04

    申请号:US10754235

    申请日:2004-01-09

    IPC分类号: H04L9/32

    摘要: The present invention leverages a series of media watermark locations to provide information relating to media ownership and/or distribution source. This provides a forensic means to establish a source of media with a high degree of certainty despite malicious and/or non-malicious attacks. By providing embedded user unique identification, a source of copied media can be determined without the embedded information substantially interfering with the intended purpose of the media itself. In one instance of the present invention, digital media is transformed into an N-dimensional media signal. User unique keys are then utilized along with a master key to determine locations for embedding a watermark signal that possesses substantially similar quantized statistics as the transformed media signal. The watermark signal is then embedded into the media signal, fingerprinting the media.

    摘要翻译: 本发明利用一系列媒体水印位置来提供与媒体所有权和/或分发源相关的信息。 这提供了一种法医手段,尽管恶意和/或非恶意攻击具有高度确定性的媒体来源。 通过提供嵌入式用户唯一标识,可以确定复制媒体的来源,而不会使嵌入的信息基本上干扰媒体本身的预期目的。 在本发明的一个实例中,数字媒体被转换为N维媒体信号。 然后,用户唯一密钥与主密钥一起被使用以确定用于嵌入具有基本相似的量化统计量的水印信号作为变换的媒体信号的位置。 然后将水印信号嵌入到媒体信号中,对媒体进行指纹识别。

    Desynchronized fingerprinting method and system for digital multimedia data
    7.
    发明授权
    Desynchronized fingerprinting method and system for digital multimedia data 有权
    数字多媒体数据的同步指纹识别方法和系统

    公开(公告)号:US07382905B2

    公开(公告)日:2008-06-03

    申请号:US10777915

    申请日:2004-02-11

    IPC分类号: G06K9/00

    CPC分类号: G06F21/10 G06F2221/0737

    摘要: A desynchronized fingerprinting method and system for identifying collaborators in the making of illegal copies of digital multimedia products. The desynchronized fingerprinting system and method can be used for both audio and video applications. The method and system include an embedding feature and a detection and extraction feature. A different and unique key is assigned to each buyer of a copy of the digital data. The embedding feature includes applying a pseudo-random transformation to selected embedding regions. The key for the pseudo-random transform is user-specific. These regions are chosen by using a secure multimedia hash function. The detection and extraction feature includes a brute-force search in the key space of the buyers. If one of the keys is likely enough, then it can be said that that user was been involved in the production of an illegal copy.

    摘要翻译: 一种用于识别合作者制作数字多媒体产品非法复制品的去同步指纹识别方法和系统。 不同步的指纹系统和方法可以用于音频和视频应用。 该方法和系统包括嵌入特征和检测和提取特征。 为数字数据副本的每个买方分配一个不同而唯一的密钥。 嵌入特征包括将伪随机变换应用于所选择的嵌入区域。 伪随机变换的关键是用户特定的。 通过使用安全多媒体散列函数来选择这些区域。 检测和提取功能包括在买家的关键空间中的强力搜索。 如果其中一个键可能足够,那么可以说该用户被卷入生产非法副本。

    Video Fingerprinting Using Watermarks
    8.
    发明申请
    Video Fingerprinting Using Watermarks 失效
    视频指纹使用水印

    公开(公告)号:US20100202652A1

    公开(公告)日:2010-08-12

    申请号:US12718654

    申请日:2010-03-05

    IPC分类号: G06K9/00

    摘要: Video fingerprinting using watermarks is described herein. A watermark encoder embeds a watermark into an input video to produce a watermarked video. The watermark encoder can choose particular regions of the video that are sufficiently complex for watermarking. Spatial and temporal complexity analyses can be performed on a per-pixel basis to locate suitable regions of the video. The watermarks can be embedded using a unique codeword associated with a given user. A watermark decoder can receive the watermarked video. In some instances, the watermarked video may have been attacked in some way after being output by the watermark encoder. In these instances, the watermark decoder can extract the watermark from the watermarked video. In turn, the watermark decoder can extract the codeword from the watermark, and compare the extracted codeword to a plurality of known codewords associated with respective users.

    摘要翻译: 本文描述了使用水印的视频指纹识别。 水印编码器将水印嵌入到输入视频中以产生水印视频。 水印编码器可以选择视频中具有足够复杂水印的特定区域。 可以在每个像素的基础上执行空间和时间复杂性分析,以定位视频的合适区域。 可以使用与给定用户相关联的唯一码字来嵌入水印。 水印解码器可以接收带水印的视频。 在一些情况下,由水印编码器输出的水印视频可能已经以某种方式被攻击。 在这些情况下,水印解码器可以从加水印的视频中提取水印。 反过来,水印解码器可以从水印中提取码字,并将提取的码字与与各个用户相关联的多个已知码字进行比较。

    Video fingerprinting using watermarks
    9.
    发明授权
    Video fingerprinting using watermarks 失效
    视频指纹使用水印

    公开(公告)号:US07912244B2

    公开(公告)日:2011-03-22

    申请号:US12718654

    申请日:2010-03-05

    IPC分类号: G06K9/00

    摘要: Video fingerprinting using watermarks is described herein. A watermark encoder embeds a watermark into an input video to produce a watermarked video. The watermark encoder can choose particular regions of the video that are sufficiently complex for watermarking. Spatial and temporal complexity analyses can be performed on a per-pixel basis to locate suitable regions of the video. The watermarks can be embedded using a unique codeword associated with a given user. A watermark decoder can receive the watermarked video. In some instances, the watermarked video may have been attacked in some way after being output by the watermark encoder. In these instances, the watermark decoder can extract the watermark from the watermarked video. In turn, the watermark decoder can extract the codeword from the watermark, and compare the extracted codeword to a plurality of known codewords associated with respective users.

    摘要翻译: 本文描述了使用水印的视频指纹识别。 水印编码器将水印嵌入到输入视频中以产生水印视频。 水印编码器可以选择视频中具有足够复杂水印的特定区域。 可以在每个像素的基础上执行空间和时间复杂度分析,以定位视频的合适区域。 可以使用与给定用户相关联的唯一码字来嵌入水印。 水印解码器可以接收带水印的视频。 在一些情况下,由水印编码器输出的水印视频可能已经以某种方式被攻击。 在这些情况下,水印解码器可以从加水印的视频中提取水印。 反过来,水印解码器可以从水印中提取码字,并将提取的码字与与各个用户相关联的多个已知码字进行比较。

    Digital fingerprinting using synchronization marks and watermarks
    10.
    发明授权
    Digital fingerprinting using synchronization marks and watermarks 有权
    数字指纹使用同步标记和水印

    公开(公告)号:US07577272B2

    公开(公告)日:2009-08-18

    申请号:US11290134

    申请日:2005-11-30

    IPC分类号: G06K9/00 H04L9/32 H04N1/40

    摘要: Digital fingerprinting using synchronization marks and watermarks. At a watermark embedder, an input host signal is divided into regions, and a subset of the regions is selected to receive synchronization marks. Respective synchronization marks are then embedded into the selected regions. At a receiver, an input signal is divided into regions, and a subset of the regions is synchronized with additional regions, which were defined by the embedder when producing the signal that is input to the receiver. Also, the receiver can model any geometric distortion undergone by the input signal between the embedder and the receiver.

    摘要翻译: 数字指纹使用同步标记和水印。 在水印嵌入器处,输入主机信号被划分为区域,并且选择区域的子集以接收同步标记。 然后将相应的同步标记嵌入到所选择的区域中。 在接收机处,输入信号被划分为区域,并且区域的子集与附加区域同步,这些区域在产生输入到接收机的信号时由嵌入器定义。 此外,接收机可以对嵌入器和接收器之间的输入信号进行任何几何失真的建模。