System and method for identifying a genuine printed document
    176.
    发明申请
    System and method for identifying a genuine printed document 审中-公开
    用于识别真实打印文档的系统和方法

    公开(公告)号:US20100014126A1

    公开(公告)日:2010-01-21

    申请号:US12381520

    申请日:2009-03-12

    Applicant: Morton Greene

    Inventor: Morton Greene

    Abstract: A system and method for verifying that a document is included in a document management system is disclosed. This system and method includes radio frequency scanning at least a portion of the document, generating document data dependently upon the radio frequency scanning, comparing the generated document data to stored document data, the stored document data generated dependently upon a prior radio frequency scanning of at least a portion of the document, and outputting an indication of the document being included in the document management system as determined by the comparing.

    Abstract translation: 公开了一种用于验证文档包括在文档管理系统中的系统和方法。 该系统和方法包括对文档的至少一部分进行射频扫描,依赖于射频扫描生成文档数据,将生成的文档数据与存储的文档数据进行比较,存储的文档数据依赖于先前的射频扫描 文档的至少一部分,并输出由比较确定的文档管理系统中包括的文档的指示。

    Color selection scheme for digital video watermarking
    180.
    发明授权
    Color selection scheme for digital video watermarking 有权
    数字视频水印的颜色选择方案

    公开(公告)号:US07630509B2

    公开(公告)日:2009-12-08

    申请号:US10673893

    申请日:2003-09-29

    Abstract: Determining a chrominance portion to be watermarked employs a perception-based table that indicates for various pixel values which of the chrominance portions, if any, should be selected for watermarking. Only the Y, U, and V values of a pixel are needed to access the table and determine which chrominance portion should be selected. However, the table may be represented such that it may be accessed using only R, G, and B values. The table may be modified so that it may indicate which of U or V should be selected, or that neither should be selected, indicating that this pixel should not be watermarked at all. Advantageously, the table may be simplified by employing some processing, because a large section of the table may be replaced by a simple test on the pixel values, e.g., U

    Abstract translation: 确定要加水印的色度部分使用基于感知的表,其指示针对各种像素值,哪个色度部分(如果有的话)应该被选择用于水印。 只需要一个像素的Y,U和V值来访问表格,并确定应该选择哪个色度部分。 然而,可以表示该表可以仅使用R,G和B值来访问该表。 可以修改表格,以便它可以指示应该选择U或V中的哪一个,或者不应该选择该表格,表示该像素根本不应该被加水印。 有利地,可以通过采用一些处理来简化表格,因为表的大部分可以通过像素值(例如,U <128)的简单测试来代替,以确定所选择的色度部分。

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