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    전자 워터마크 데이터 삽입 장치
    122.
    发明公开
    전자 워터마크 데이터 삽입 장치 无效
    电子水印数据插入设备将电子水印数据插入视频数据时，保护非检测时间间隔

    公开(公告)号：KR1020040034644A

    公开(公告)日：2004-04-28

    申请号：KR1020040020651

    申请日：2004-03-26

    Applicant: 닛폰 덴키 가부시끼 가이샤

    Inventor： 타나카노부유키

    IPC: H04N5/913

    CPC classification number: H04N19/467 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32154 ,  H04N1/32165 ,  H04N1/32277 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/324 ,  H04N2201/327 ,  H04N2201/3283

    Abstract: PURPOSE: An electronic watermark data inserting apparatus is provided to insert electronic watermark data while guaranteeing a non-detection time interval without deteriorating picture quality. CONSTITUTION: An electronic watermark data inserting apparatus has a frequency domain transformation structure to which the original image of one frame divided into a plurality of blocks each of which has multiple pixels is provided in order to transform the original image into frequency-transformed video data. An electronic watermark data memory structure(37) previously memorizes a plurality of electronic watermark data items. An insertion information memory structure(39) memorizes insertion information for designating electronic watermark data to be inserted into each block among the electronic watermark data items stored in the electronic watermark data memory structure. An electronic watermark data selecting structure(38) selects specific electronic watermark data specified for each block from the electronic watermark data memory structure. An electronic watermark data insertion structure(33) inserts the selected electronic watermark data into the frequency-transformed video data to generate composite video data into which an electronic watermark has been inserted.

    Abstract translation: 目的：提供一种电子水印数据插入装置，用于插入电子水印数据，同时保证非检测时间间隔，而不会降低图像质量。 构成：电子水印数据插入装置具有频域变换结构，为了将原始图像变换为频率变换后的视频数据，设置分割为具有多个像素的多个块的一帧的原始图像。 电子水印数据存储器结构（37）预先存储多个电子水印数据项。 插入信息存储结构（39）存储用于指定要插入到电子水印数据存储结构中的电子水印数据项中的每个块中的电子水印数据的插入信息。 电子水印数据选择结构（38）从电子水印数据存储器结构中选择针对每个块指定的特定电子水印数据。 电子水印数据插入结构（33）将所选择的电子水印数据插入到经频率变换的视频数据中，以生成已插入电子水印的复合视频数据。

    Watermarking and fingerprinting digital content using alternative blocks to embed information
    125.
    发明授权
    Watermarking and fingerprinting digital content using alternative blocks to embed information 失效
    水印和指纹数字内容使用替代块嵌入信息

    公开(公告)号：US08189854B2

    公开(公告)日：2012-05-29

    申请号：US11707634

    申请日：2007-02-16

    Applicant: Stephen Watson ,  Daniel A. Collens ,  Kevin Hui ,  Michael A. Malcolm

    Inventor： Stephen Watson ,  Daniel A. Collens ,  Kevin Hui ,  Michael A. Malcolm

    IPC: G06K9/00

    CPC classification number: H04N1/32187 ,  G06T1/0035 ,  H04N1/32165 ,  H04N1/32277 ,  H04N19/467 ,  H04N21/2383 ,  H04N21/23892 ,  H04N21/4348 ,  H04N21/8358 ,  H04N2201/324

    Abstract: A method of embedding information in digital content representing media streams. The method includes (1) selecting a set of locations within that digital content representing the media stream to embed information, (2) selecting a set of possible alterations to make at those locations, and (3) making a subset of the possible alterations. The set of locations and possible alterations is herein sometimes called a “watermark.” The subset of actual alterations that are made is herein sometimes called a “fingerprint.” The method determines a set of locations at which there are alternative versions of digital content representing the same media stream, such as one being the original and one being an alternative version of the same digital content, herein sometimes called the “original movie” and the “alt-movie,” or herein sometimes called the “original block” and the “alt-block” for a particular block in the digital content representing the media stream.

    Abstract translation: 一种在表示媒体流的数字内容中嵌入信息的方法。 该方法包括（1）选择表示媒体流的数字内容中的一组位置以嵌入信息，（2）选择在这些位置处进行的一组可能的改变，以及（3）制作可能的改变的子集。 这里的一组位置和可能的改变在这里有时被称为“水印”。所做的实际改变的子集在这里有时被称为“指纹”。该方法确定一组位置，其中存在代表 相同的媒体流，例如一个是原始的，一个是相同的数字内容的替代版本，在这里有时被称为“原始电影”和“alt-movie”，或者这里有时被称为“原始块”，并且 对于表示媒体流的数字内容中的特定块的“alt-block”。

    Data processing apparatus and method
    128.
    发明授权
    Data processing apparatus and method 有权
    数据处理装置及方法

    公开(公告)号：US07284129B2

    公开(公告)日：2007-10-16

    申请号：US10317634

    申请日：2002-12-12

    Applicant: Jason Charles Pelly ,  Daniel Warren Tapson

    Inventor： Jason Charles Pelly ,  Daniel Warren Tapson

    IPC: H04L9/00 ,  H04N7/167 ,  H04K1/00

    CPC classification number: H04N1/32154 ,  G06T1/0071 ,  G06T2201/0052 ,  G06T2201/0063 ,  H04N1/32165 ,  H04N2201/324 ,  H04N2201/327

    Abstract: A watermarking system includes an encoding data processor operable to generate at least one marked version of an original item of material by introducing one of a predetermined set of code words into a copy of the original material item. The apparatus has a code word generator operable to provide the code word having a plurality of code word coefficients, and an encoding processor operable to combine the code word coefficients with the material. Each of the plurality of code words of the set is uniquely associated with a data word having first and second fields. Each of a set of values of the first field is represented as a first part of the code word having a first plurality of coefficients, and the second field is represented as a second part of the code word having a second plurality of coefficients.

    Abstract translation: 一种水印系统包括编码数据处理器，其可操作以通过将预定的一组代码字中的一个引入原始物料的副本来生成原始物料的至少一个标记的版本。 该装置具有可操作以提供具有多个码字系数的码字的码字发生器，以及可操作以将码字系数与该物质组合的编码处理器。 集合的多个码字中的每一个与具有第一和第二字段的数据字唯一地相关联。 第一场的一组值中的每一个被表示为具有第一多个系数的码字的第一部分，并且第二场被表示为具有第二多个系数的码字的第二部分。

    Electronic watermark data insertion apparatus and electronic watermark data detection apparatus
    129.
    发明授权
    Electronic watermark data insertion apparatus and electronic watermark data detection apparatus 有权
    电子水印数据插入装置和电子水印数据检测装置

    公开(公告)号：US07159117B2

    公开(公告)日：2007-01-02

    申请号：US09815849

    申请日：2001-03-23

    Applicant: Nobuyuki Tanaka

    Inventor： Nobuyuki Tanaka

    IPC: H04L9/00

    CPC classification number: H04N19/467 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0053 ,  G06T2201/0061 ,  G06T2201/0065 ,  H04N1/32154 ,  H04N1/32165 ,  H04N1/32277 ,  H04N21/23892 ,  H04N21/8358 ,  H04N2201/324 ,  H04N2201/327 ,  H04N2201/3283

    Abstract: An electronic watermark data insertion apparatus comprises an insertion information memory (39) for preliminarily storing insertion information for designating electronic watermark data to be inserted block by block and an electronic watermark data insertion unit (33) for inserting, on the basis of the insertion information, the designated electronic watermark data from an electronic watermark data table (37) in a quantized image block by block. An electronic watermark data detection apparatus comprises an electronic watermark date extracting unit (45) for extracting the image data having a biased frequency region projecting in dependency on the inserted electronic watermark data block by block and an electronic watermark data detection unit (50) for calculating a statistical similarity between the extracted data and the electronic watermark data stored in an electronic watermark data table (48). An electronic watermark data accumulator (51) accumulates the statistical similarity for a predetermined time interval to produce an accumulated addition result which is reset after the elapse of the predetermined time interval or when the accumulated addition result exceeds the a predetermined threshold value. A determining unit (52) determines that the electronic watermark data is detected when the accumulated addition result exceeds the predetermined threshold value.

    Abstract translation: 电子水印数据插入装置包括：插入信息存储器，用于预先存储用于指定逐块插入的电子水印数据的插入信息;以及电子水印数据插入单元，用于根据插入信息插入 ，来自电子水印数据表（37）的指定电子水印数据，以量化图像块为单位。 一种电子水印数据检测装置，包括电子水印日期提取单元（45），用于根据插入的电子水印数据块逐块地提取具有偏置频率区域的图像数据;以及电子水印数据检测单元（50），用于计算 所提取的数据与存储在电子水印数据表（48）中的电子水印数据之间的统计相似度。 电子水印数据累加器（51）在预定的时间间隔内累加统计学相似度，以产生在经过预定时间间隔之后或当累加的相加结果超过预定阈值时复位的累积加法结果。 确定单元（52）确定当累积的相加结果超过预定阈值时检测到电子水印数据。

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