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    Digital Watermarks
    92.
    发明申请
    Digital Watermarks 有权
    数字水印

    公开(公告)号：US20100146285A1

    公开(公告)日：2010-06-10

    申请号：US12575168

    申请日：2009-10-07

    Applicant: Geoffrey B. Rhoads ,  J. Scott Carr

    Inventor： Geoffrey B. Rhoads ,  J. Scott Carr

    IPC: H04L9/32

    CPC classification number: H04N1/32144 ,  G06F17/3002 ,  G06F17/30038 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0065 ,  G06T2201/0202 ,  H04N1/32277 ,  H04N2201/327 ,  H04N2201/33357

    Abstract: The present invention relates generally to digital watermarking and steganographic data hiding. In one embodiment a method of rendering content to a user is provided. The rendered content includes a digital watermark embedded therein. In another embodiment, digital watermarking is utilized to facilitate purchase or lease of audio or video content over a network or with a remote computer. In still another embodiment, a compression characteristic is determined, and subsequent steganographic embedding is influenced based on the characteristic. Other embodiments are provided as well.

    Abstract translation: 本发明一般涉及数字水印和隐写数据隐藏。 在一个实施例中，提供了向用户呈现内容的方法。 呈现的内容包括嵌入其中的数字水印。 在另一个实施例中，利用数字水印来促进通过网络或远程计算机购买或租用音频或视频内容。 在另一个实施例中，确定压缩特性，并且基于特性影响随后的隐写嵌入。 也提供其他实施例。

    Method and apparatus for watermarking stream data
    94.
    发明授权
    Method and apparatus for watermarking stream data 有权
    用于水印数据流的方法和装置

    公开(公告)号：US07720250B2

    公开(公告)日：2010-05-18

    申请号：US11419800

    申请日：2006-05-23

    Applicant: Sushil Jajodia ,  Huiping Guo ,  YingJiu Li

    Inventor： Sushil Jajodia ,  Huiping Guo ,  YingJiu Li

    IPC: G06K9/00 ,  H04L9/32 ,  H04K1/00

    CPC classification number: H04L9/12 ,  G06T1/005 ,  G06T2201/0065 ,  H04L9/3236 ,  H04L2209/608

    Abstract: A watermarking system embeds a watermark into data values that may be streamed. A data hash is calculated using data values and a hash key. The data values are grouped. The groups include a first group and a second group. A first group hash is calculated using data values in the first group and a first group hash key. A second group hash is calculated using data values in the second group and a second group hash key. A watermark is constructed based on the first group hash and the second group hash. The value of at least one of the data values in the first group is modified using the watermark.

    Abstract translation: 水印系统将水印嵌入到可以流式传输的数据值中。 使用数据值和散列密钥计算数据散列。 数据值被分组。 这些组包括第一组和第二组。 使用第一组中的数据值和第一组散列密钥计算第一组散列。 使用第二组中的数据值和第二组散列密钥来计算第二组散列。 基于第一组散列和第二组散列构造水印。 使用水印修改第一组中的至少一个数据值的值。

    METHODS AND APPARATUS FOR ENHANCING THE ROBUSTNESS OF WATERMARK EXTRACTION FROM DIGITAL HOST CONTENT
    95.
    发明申请
    METHODS AND APPARATUS FOR ENHANCING THE ROBUSTNESS OF WATERMARK EXTRACTION FROM DIGITAL HOST CONTENT 有权
    从数字主机内容增强水印提取的可靠性的方法和装置

    公开(公告)号：US20100111355A1

    公开(公告)日：2010-05-06

    申请号：US12567620

    申请日：2009-09-25

    Applicant: Rade Petrovic ,  Babak Tehranchi ,  Joseph M. Winograd ,  Kanaan Jemili

    Inventor： Rade Petrovic ,  Babak Tehranchi ,  Joseph M. Winograd ,  Kanaan Jemili

    IPC: G06K9/00 ,  G10L19/00

    CPC classification number: G06T1/0071 ,  G06T2201/0065 ,  G10L19/018 ,  H04L9/088 ,  H04L2209/608 ,  H04N1/32203 ,  H04N1/32245 ,  H04N1/32299 ,  H04N1/32315 ,  H04N2201/3233

    Abstract: Methods and apparatus for enhancing the robustness of watermark extraction from digital host content are provided. Embedded watermarks may be extracted from received digital host content in accordance with a stego key. A first watermark is extracted and a number of errors in the first extracted watermark is assessed. If the number of errors is above a first pre-determined value, at least a second watermark is extracted from the host content. A number of errors in at least the second extracted watermark is assessed. If the number of errors in at least the second extracted watermark is above a second pre-determined value, the extraction results for the extracted watermarks are combined in order to cumulatively assess the validity of the first extracted watermark and at least the second extracted watermark.

    Abstract translation: 提供了从数字主机内容增强水印提取的鲁棒性的方法和装置。 可以根据隐藏密钥从接收到的数字主机内容中提取嵌入水印。 提取第一水印，并且评估第一提取水印中的多个错误。 如果错误数量高于第一预定值，则从主机内容中提取至少第二水印。 评估至少第二提取水印中的多个错误。 如果至少第二提取水印中的错误数高于第二预定值，则将所提取的水印的提取结果合并，以累积评估第一提取水印和至少第二提取水印的有效性。

    Adaptive prediction filtering for digital watermarking
    96.
    发明授权
    Adaptive prediction filtering for digital watermarking 有权
    数字水印自适应预测滤波

    公开(公告)号：US07688996B2

    公开(公告)日：2010-03-30

    申请号：US11761953

    申请日：2007-06-12

    Applicant: Brett A. Bradley

    Inventor： Brett A. Bradley

    IPC: G06K9/00 ,  H04N1/40 ,  H04L9/32

    CPC classification number: G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32149 ,  H04N1/32331

    Abstract: A watermarked signal is pre-filtered based on an analysis of signal characteristics that identify filter parameters that yield better correspondence between the filtered watermarked signal and the digital watermark. The watermark detection method computes signal characteristics of a host digitally watermarked signal, and analyzes the characteristics to determine an extent to which the signal characteristics correspond to characteristics of the digital watermark. The method adapts parameters of digital watermark prediction applied to the watermarked signal based on the extent to which the signal characteristics correspond to the characteristics of the digital watermark. In one embodiment, different filters or filter parameters are selected to match different signal characteristics of the watermarked signal with the characteristics of the digital watermark.

    Abstract translation: 基于识别滤波器参数的信号特征的分析来对水印信号进行预滤波，滤波器参数在滤波后的水印信号和数字水印之间产生更好的对应关系。 水印检测方法计算主机数字水印信号的信号特性，并分析特征以确定信号特性对应于数字水印特性的程度。 该方法根据信号特性对应于数字水印特性的程度，适应水印信号的数字水印预测参数。 在一个实施例中，选择不同的滤波器或滤波器参数以匹配具有数字水印特性的带水印信号的不同信号特性。

    Method and apparatus for determining encoding availability, and computer product
    97.
    发明授权
    Method and apparatus for determining encoding availability, and computer product 有权
    用于确定编码可用性的方法和装置，以及计算机产品

    公开(公告)号：US07676056B2

    公开(公告)日：2010-03-09

    申请号：US11320937

    申请日：2005-12-30

    Applicant: Hirotaka Chiba ,  Tsugio Noda

    Inventor： Hirotaka Chiba ,  Tsugio Noda

    IPC: G06K9/00

    CPC classification number: G06T1/005 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32144

    Abstract: An embedding-availability determining unit determines an availability of embedding data into an image based on an input/output characteristic of a predetermined feature amount related to a combination of an output device that outputs an image in which the data is embedded to a medium and an input device that inputs the image that is output to the medium. A result output unit outputs a result of determination by the embedding-availability determining unit.

    Abstract translation: 嵌入可用性确定单元基于与输出将数据嵌入到介质的图像的输出设备的组合相关联的预定特征量的输入/输出特性来确定将数据嵌入到图像中的可用性，以及 输入设备，输入输出到介质的图像。 结果输出单元输出嵌入可用性确定单元的确定结果。

    Image processing apparatus, image processing method, and storage medium
    99.
    发明授权
    Image processing apparatus, image processing method, and storage medium 失效
    图像处理装置，图像处理方法和存储介质

    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。

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