中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

114 records (took 0.027 seconds)

    Detecting Media Areas Likely of Hosting Watermarks
    32.
    发明申请
    Detecting Media Areas Likely of Hosting Watermarks 有权
    检测媒体区域可能主机水印

    公开(公告)号：US20080149713A1

    公开(公告)日：2008-06-26

    申请号：US11877463

    申请日：2007-10-23

    Applicant: Trent J. Brundage

    Inventor： Trent J. Brundage

    IPC: G06K7/00

    CPC classification number: G07D7/0053 ,  G06T1/0071 ,  G06T2201/0601 ,  G07D7/00 ,  G07D7/0043 ,  G07D7/0047 ,  G07D7/04 ,  G07F7/082

    Abstract: The present invention relates generally to digital watermarking and steganographic encoding. One claim recites a method including: receiving data corresponding to at least a portion of digital data; separating the data into a plurality of portions; determining a measure relative to a predetermined measure for each of the portions, wherein the measure comprises a measure related to a predetermined digital watermark signal; based at least in part on the measure, identifying which out of the plurality of portions are likely to host digital watermarking therein. Of course, other combinations are provided as well.

    Abstract translation: 本发明一般涉及数字水印和隐写编码。 一个权利要求描述了一种方法，包括：接收对应于数字数据的至少一部分的数据; 将数据分离成多个部分; 确定相对于每个部分的预定测量的度量，其中所述测量包括与预定数字水印信号相关的度量; 至少部分地基于所述测量，识别所述多​​个部分中哪些部分中可能承载数字水印的部分。 当然，也提供其他组合。

    Foreground/background document processing with dataglyphs
    33.
    发明授权
    Foreground/background document processing with dataglyphs 有权
    用数据符号进行前景/背景文档处理

    公开(公告)号：US06641053B1

    公开(公告)日：2003-11-04

    申请号：US10270697

    申请日：2002-10-16

    Applicant: Jeff Breidenbach ,  David L. Hecht

    Inventor： Jeff Breidenbach ,  David L. Hecht

    IPC: G06K1960

    CPC classification number: G06T11/60 ,  G06T1/0064 ,  G06T1/0071 ,  G06T2201/0051 ,  G06T2201/0601 ,  H04N1/32133 ,  H04N1/32144 ,  H04N2201/3269 ,  H04N2201/3271

    Abstract: An image processing apparatus for encoding and decoding a document containing machine-readable code overlaid by human-readable content such that the code and the human-readable content are both discernable. In operation, a background image is generated, wherein the background image comprises coded glyphtone cells based on grayscale image data values, each of the halftone cells comprising one of at least two distinguishable patterns. The background image is overlaid with a second image such that some visible glyphtone cells may be decoded and the second image may be viewed. Finally, the decoded information enables comparison of aspects of the second image with a predetermined nominal reference.

    Abstract translation: 一种图像处理装置，用于对包含由人类可读内容覆盖的机器可读代码的文档进行编码和解码，使得代码和人类可读内容都是可辨别的。 在操作中，生成背景图像，其中背景图像包括基于灰度图像数据值的编码的glyphtone单元，每个半色调单元包括至少两个可区分的图案之一。 背景图像被覆盖有第二图像，使得可以解码一些可见的glyphtone细胞并且可以观看第二图像。 最后，解码的信息使第二图像的方面与预定的标称参考值相比较。

    Method and apparatus for data hiding in images
    35.
    发明授权
    Method and apparatus for data hiding in images 失效
    用于数据隐藏在图像中的方法和装置

    公开(公告)号：US5870499A

    公开(公告)日：1999-02-09

    申请号：US971586

    申请日：1997-11-17

    Applicant: Walter Bender ,  Norishige Morimoto ,  Daniel Gruhl

    Inventor： Walter Bender ,  Norishige Morimoto ,  Daniel Gruhl

    IPC: G06T1/00 ,  H04N1/32

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32229 ,  G06T2201/0051 ,  G06T2201/0065 ,  G06T2201/0081 ,  G06T2201/0601 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: A method of hiding a pattern in a host image increases and decreases parameter values at randomly selected host image locations assigned to respective first and second groups. The alteration modifies the statistical behavior of a test statistic equivalent to a linear combination of a large number of instances of respective functions, associated with the pattern, of the parameter values at first and second group locations. The presence or absence of the pattern in a test image is determined by comparing the experimental value of the test statistic associated with the pattern with the expected value of the same sum for an unaltered host image.

    Abstract translation: 在主图像中隐藏图案的方法增加和减少分配给相应的第一和第二组的随机选择的主机图像位置处的参数值。 改变修改等效于与第一和第二组位置处的参数值相关联的与模式相关联的大量相应功能的实例的线性组合的测试统计量的统计行为。 通过将与图案相关联的测试统计量的实验值与未改变的主图像的相同和的期望值进行比较来确定测试图像中的图案的存在或不存在。

    Method and apparatus for data hiding in images
    37.
    发明授权
    Method and apparatus for data hiding in images 失效
    用于数据隐藏在图像中的方法和装置

    公开(公告)号：US5689587A

    公开(公告)日：1997-11-18

    申请号：US599254

    申请日：1996-02-09

    Applicant: Walter Bender ,  Norishige Morimoto ,  Daniel Gruhl

    Inventor： Walter Bender ,  Norishige Morimoto ,  Daniel Gruhl

    IPC: G06T1/00 ,  H04N1/32 ,  G06K9/36 ,  G06F7/58 ,  G06F101/14

    CPC classification number: G06T1/0028 ,  G06T1/005 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32229 ,  G06T2201/0051 ,  G06T2201/0065 ,  G06T2201/0081 ,  G06T2201/0601 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: A method of hiding a pattern in a host image increases and decreases parameter values at randomly selected host image locations assigned to respective first and second groups. The alteration modifies the statistical behavior of a test statistic equivalent to a linear combination of a large number of instances of respective functions, associated with the pattern, of the parameter values at first and second group locations. The presence or absence of the pattern in a test image is determined by comparing the experimental value of the test statistic associated with the pattern with the expected value of the same sum for an unaltered host image.

    Abstract translation: 在主图像中隐藏图案的方法增加和减少分配给相应的第一和第二组的随机选择的主机图像位置处的参数值。 改变修改等效于与第一和第二组位置处的参数值相关联的与模式相关联的大量相应功能的实例的线性组合的测试统计量的统计行为。 通过将与图案相关联的测试统计量的实验值与未改变的主图像的相同和的期望值进行比较来确定测试图像中的图案的存在或不存在。

    SIGNAL DECODING METHODS, APPARATUS AND SYSTEMS
    39.
    发明申请
    SIGNAL DECODING METHODS, APPARATUS AND SYSTEMS 审中-公开

    公开(公告)号：US20180374183A1

    公开(公告)日：2018-12-27

    申请号：US15934036

    申请日：2018-03-23

    Applicant: Digimarc Corporation

    Inventor： Alastair M. Reed ,  Ravi K. Sharma

    IPC: G06T1/00 ,  H04N1/32 ,  G06K9/00

    CPC classification number: G06T1/0028 ,  G06K9/00 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0601 ,  H04N1/32309

    Abstract: The present invention relate generally to signal encoding and decoding. One claim recites a method comprising: obtaining color image data or color video data, the color image data or color video data comprising an encoded signal pattern, the encoded signal pattern aiding detection of an encoded message, the pattern comprising first frequency components and second frequency components, the color image data or color video data comprising first color data and second color data, in which the first color data comprises the first frequency components encoded therein, and the second color data comprises the second frequency components encoded therein; combining the first color data and the second color data, said combining yielding combined color data; utilizing one or more processors or electronic processing circuitry, detecting the encoded signal pattern from the combined color data, said detecting yielding rotation and scale information; and using the rotation and scale information to detect the encoded message from the combined color data. Of course, other combinations and claims are provided too.

Patent Agency Ranking