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    Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
    235.
    发明授权
    Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data 有权
    数字化数据中插入，保护和检测数字水印的优化方法

    公开(公告)号：US07409073B2

    公开(公告)日：2008-08-05

    申请号：US11482654

    申请日：2006-07-07

    Applicant: Scott A. Moskowitz ,  Marc S. Cooperman

    Inventor： Scott A. Moskowitz ,  Marc S. Cooperman

    IPC: G06K9/00

    CPC classification number: G06T1/0092 ,  G06T1/0028 ,  G06T1/005 ,  G06T2201/0064 ,  G06T2201/0065 ,  H04K1/00 ,  H04L2209/08 ,  H04L2209/34 ,  H04L2209/608 ,  H04N1/32149 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/3232 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: The implementations of digital watermarks can be optimally suited to particular transmission, distribution and storage mediums given the nature of digitally-sampled audio, video and other multimedia works. Watermark application parameters can be adapted to the individual characteristics of a given digital sample stream. Watermark information can be either carried in individual samples or in relationships between multiple samples, such as in a waveform shape. More optimal models may be obtained to design watermark systems that are tamper-resistant given the number and breadth of existent digitized sample options with different frequency and time components. The highest quality of a given content signal may be maintained as it is mastered, with the watermark suitably hidden, taking into account usage of digital filters and error correction. The quality of the underlying content signals can be used to identify and highlight advantageous locations for the insertion of digital watermarks. The watermark is integrated as closely as possible to the content signal, at a maximum level to force degradation of the content signal when attempts are made to remove the watermarks.

    Abstract translation: 考虑到数字采样音频，视频和其他多媒体作品的性质，数字水印的实现可以最适合于特定的传输，分发和存储介质。 水印应用参数可以适应给定数字样本流的各个特征。 水印信息可以在单个样本中携带，也可以在多个样本之间的关系中携带，例如波形形状。 鉴于具有不同频率和时间分量的现有数字化样本选项的数量和广度，可以获得更好的模型来设计防篡改的水印系统。 考虑到数字滤波器的使用和误差校正，可以保持给定内容信号的最高质量，因为它被掌握，水印被适当地隐藏。 底层内容信号的质量可用于识别和突出显示用于插入数字水印的有利位置。 尽可能地将内容信号尽可能地集成到内容信号上，以在尝试去除水印时强制内容信号的劣化。

    Image Processing Apparatus, Image Processing Method, And Recording Medium
    236.
    发明申请
    Image Processing Apparatus, Image Processing Method, And Recording Medium 有权
    图像处理装置，图像处理方法和记录介质

    公开(公告)号：US20080184364A1

    公开(公告)日：2008-07-31

    申请号：US11876647

    申请日：2007-10-22

    Applicant: Kazuhiro Ishiguro ,  Takayuki Nabeshima ,  Hideyuki Toriyama ,  Hiroyuki Suzuki ,  Masaaki Saka

    Inventor： Kazuhiro Ishiguro ,  Takayuki Nabeshima ,  Hideyuki Toriyama ,  Hiroyuki Suzuki ,  Masaaki Saka

    IPC: H04L9/32

    CPC classification number: H04N1/4413 ,  H04N1/00843 ,  H04N1/00875 ,  H04N1/444 ,  H04N2201/3204 ,  H04N2201/3233 ,  H04N2201/327

    Abstract: An image processing apparatus comprising: an input portion that inputs image data of a plurality of pages of document; a password detector that detects a password given to each of the pages; a password judger that judges from the detecting results drew by the password detector whether or not different passwords are detected from each of the pages; a correlation judger that judges about each of the pages if the password judger judges that different passwords are detected from each of the pages, whether or not the passwords are correlated to each other; and an output permitting portion that permits the image data of all the pages, which are the image data inputted by the input portion, to be outputted without requesting entry of all passwords, if it is judged about each of the pages that the passwords are correlated to each other, on the other hand, requests entry of a password about each of the pages if it is judged about at least one of the pages that the passwords are not correlated to each other, then permits the image data of a certain page to be outputted, if an appropriate password is entered about that page.

    Abstract translation: 一种图像处理装置，包括：输入部分，其输入多页文档的图像数据; 密码检测器，其检测给予每个页面的密码; 从密码检测器检测出的检测结果判断是否从每个页面检测到不同的密码的密码判定器; 如果密码判断器判断从每个页面检测到不同的密码，则密码是否彼此相关，则相关判断器判断每个页面; 以及输出许可部分，其允许输出作为输入部分输入的图像数据的所有页面的图像数据，而不要求输入所有密码，如果对每个页面判断密码是相关的 另一方面，如果判断关于密码彼此不相关的页面中的至少一个，则要求输入关于每个页面的密码，然后允许某个页面的图像数据 如果输入了关于该页面的适当密码，则输出。

    Method of embedding/detecting digital watermark and apparatus for using thereof
    240.
    发明授权
    Method of embedding/detecting digital watermark and apparatus for using thereof 有权
    嵌入/检测电子水印的方法及其使用方法

    公开(公告)号：US07395432B2

    公开(公告)日：2008-07-01

    申请号：US10312025

    申请日：2002-04-13

    Applicant: Jung-Soo Lee ,  Jong-Uk Choi

    Inventor： Jung-Soo Lee ,  Jong-Uk Choi

    IPC: H04L9/00 ,  H04K1/00 ,  G06F17/14

    CPC classification number: H04N19/467 ,  G06T1/005 ,  G06T2201/0065 ,  H04N1/32203 ,  H04N1/32208 ,  H04N1/32293 ,  H04N1/32309 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327 ,  H04N2201/328

    Abstract: A watermark is embedded in spatial domain. However, the same effect as the watermark is embedded in frequency domain is obtained by inverse frequency transforming the watermark, and then embedding it. By doing that, robustness of the watermark is enhanced in comparison with conventional method for generating a watermark and adding it in spatial domain. Also, the watermark can be detected, even though an image is passed through stirmark, by enlarging the size of the watermark generated by inverse frequency transforming through re-sampling.In detecting the watermark, by high frequency filtering the watermarked image and getting all blocks of the watermarked image together, the effect of removing image component is obtained. Thereby, the detection speed of the watermark is improved, and the detection rate is increased as well.

    Abstract translation: 水印嵌入在空间域中。 然而，通过对水印进行逆频率变换，然后嵌入，获得与频域嵌入水印相同的效果。 通过这样做，与用于生成水印并将其添加到空间域的常规方法相比，增强了水印的鲁棒性。 此外，即使图像通过stirmark，也可以通过放大通过重新采样的逆频率变换产生的水印的大小来检测水印。 在检测水印时，通过对水印图像进行高频滤波，并将所有的水印图像块整合在一起，可以获得去除图像分量的效果。 因此，提高了水印的检测速度，并且检测率也增加。

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