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    Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit
    111.
    发明申请
    Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit 失效
    代码生成方法及其单元，代码检测方法及其单元，以及水印嵌入单元和水印检测单元

    公开(公告)号：US20040143742A1

    公开(公告)日：2004-07-22

    申请号：US10752665

    申请日：2004-01-08

    Inventor： Hirofumi Muratani

    IPC: H04L009/00

    CPC classification number: G06T1/005 ,  G06T2201/0063 ,  G10L19/018 ,  H04H20/31 ,  H04H2201/50 ,  H04N1/32144 ,  H04N2201/3226 ,  H04N2201/3236 ,  H04N2201/324 ,  H04N2201/327

    Abstract: Residue calculating sections respectively obtain residues which take a plurality of integers as modulus, with respect to a user ID. The plurality of integers are stored in modulus storage sections and are prime to each other. Based on these residues and parameters stored in a coding parameter storage section, component codes constructed by continuous sequences of 1 and 0 using a predetermined number of bits as a unit are respectively generated by component code generating sections. These component codes are concatenated by a concatenating section, thereby to obtain a code to be embedded, which constructs watermark information.

    Abstract translation: 相对于用户ID，残差计算部分别分别获得以多个整数为模数的残差。 多个整数被存储在模数存储部分中并且彼此相互叠加。 基于存储在编码参数存储部中的这些残留和参数，分量代码生成部分分别生成以预定位数为单位的由1和0的连续序列构成的分量代码。 这些分量代码由级联部分连接，从而获得嵌入的代码，其构建水印信息。

    Data generating device capable of appending different watermarks to corresponding pages
    113.
    发明申请
    Data generating device capable of appending different watermarks to corresponding pages 有权
    数据生成装置能够将不同的水印附加到对应的页面

    公开(公告)号：US20020018233A1

    公开(公告)日：2002-02-14

    申请号：US09797828

    申请日：2001-03-05

    Applicant: BROTHER KOGYO KABUSHIKI KAISHA

    Inventor： Hiromi Mori

    IPC: G06K001/00

    CPC classification number: H04N1/00238 ,  G03G15/5087 ,  H04N1/32144 ,  H04N2201/3239 ,  H04N2201/324 ,  H04N2201/3271

    Abstract: A computer 1 is provided with an application 2 and a printer driver 3. A user of the computer 1 generates image data using the application 2. When the image data is for a plurality of pages, the user selects a desired watermark for each of the plurality of pages. The printer driver 3 converts the image data into print data, and combines selected watermarks with the print data for corresponding pages, thereby generating updated print data. The updated print data is output as a single print job to the printer 7. The printer 7 executes printing operations based on the print job so as to an image on a plurality of pages each formed with a corresponding watermark.

    Abstract translation: 计算机1设置有应用程序2和打印机驱动程序3.计算机1的用户使用应用程序2生成图像数据。当图像数据用于多个页面时，用户为每个页面选择所需的水印 多页。 打印机驱动器3将图像数据转换为打印数据，并将所选择的水印与相应页面的打印数据组合，从而生成更新的打印数据。 更新的打印数据作为单个打印作业被输出到打印机7.打印机7基于打印作业执行打印操作，以便在形成有相应水印的多个页面上的图像上。

    Electronic watermark implantation device, computer program for electronic watermark implantation, electronic watermark detection device, and computer program for electronic watermark detection
    115.
    发明专利
    Electronic watermark implantation device, computer program for electronic watermark implantation, electronic watermark detection device, and computer program for electronic watermark detection 有权
    电子水印植入装置，电子水印植入计算机程序，电子水印检测装置和电子水印检测计算机程序

    公开(公告)号：JP2012142783A

    公开(公告)日：2012-07-26

    申请号：JP2010294032

    申请日：2010-12-28

    Applicant: Fujitsu Ltd ,  富士通株式会社

    Inventor： NAKAGATA SHOHEI ,  KURAKI KENSUKE ,  TAKAHASHI JUN ,  ANAMI TAIZO

    IPC: H04N1/387 ,  G06T1/00

    CPC classification number: H04L9/3226 ,  G06T1/0085 ,  G06T2201/0051 ,  G06T2201/0063 ,  G10L19/018 ,  H04L2209/608 ,  H04N1/32149 ,  H04N2201/3236 ,  H04N2201/324 ,  H04N2201/3284

    Abstract: PROBLEM TO BE SOLVED: To provide an electronic watermark implantation device that has resistance to a conspiracy attack and can reduce operation amount for implanting and detecting electronic watermark information.SOLUTION: An electronic watermark implantation device has: an interface part 11 acquiring a content made into electronic data and electronic watermark information; and a processing part 13 implanting the electronic watermark information into the content. The processing part 13 implements a cord word generation function generating a reference cord word including a bit string including the electronic watermark information; a shift function generating a plurality of modified cord words differing from each other by exchanging an arrangement of the bit string including the electronic watermark information included in the reference code word based on a prescribed exchange rule according to each of a plurality of shift amounts varying for each piece of the electronic watermark information; and a watermark superposition function implanting the plurality of modified code words into the content.

    Abstract translation: 要解决的问题：提供一种具有抵抗阴谋攻击的电子水印植入装置，并且可以减少用于植入和检测电子水印信息的操作量。 解决方案：电子水印植入装置具有：获取电子数据内容和电子水印信息的接口部分11; 以及将电子水印信息注入到内容中的处理部13。 处理部13实现产生包括电子水印信息的位串的参考线字的绳字产生功能; 通过根据规定的交换规则交换包含基准码字中包含的电子水印信息的比特串的排列，生成多个修改后的索词的移位函数，根据规定的交换规则， 每片电子水印信息; 以及将所述多个修改的代码字注入到所述内容中的水印叠加功能。 版权所有（C）2012，JPO＆INPIT

    Data processing apparatus and data processing method
    119.
    发明专利
    Data processing apparatus and data processing method 有权

    公开(公告)号：JP4100674B2

    公开(公告)日：2008-06-11

    申请号：JP2002362515

    申请日：2002-12-13

    Applicant: ソニー・ユナイテッド・キングダム・リミテッドSony United Kingdom Limited

    Inventor： ダニエル ワレン タプソン ,  ジェイソン チャールズ ペリー

    IPC: G06Q30/00 ,  H04N1/387 ,  G06Q10/00 ,  G06T1/00 ,  G09C5/00 ,  G10L11/00 ,  H04L9/36 ,  H04N1/32 ,  H04N7/08 ,  H04N7/081 ,  H04N7/30

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

    Abstract: A watermarking system comprises 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 comprises 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. The present invention provides a facility for generating watermark code words having a hierarchy of values. By providing watermark code words having first and second parts, a data word with first and second fields can be uniquely identified. The first and second fields can be assigned to different associated parameters such as for example address parameters. The first field could therefore identify the country of distribution of the material, whereas the second field could identify a particular distribution outlet within the country. A watermarking system can be formed, which finds particular application in identifying a point of distribution of pirate copies of video material generated by capturing the watermarked image, using, for example, a camcorder in a cinema.

    전자 워터마크 데이터 삽입 장치 및 전자 워터마크 데이터 검출 장치
    120.
    发明授权
    전자 워터마크 데이터 삽입 장치 및 전자 워터마크 데이터 검출 장치 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：KR100553469B1

    公开(公告)日：2006-02-22

    申请号：KR1020010015295

    申请日：2001-03-23

    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: 본 발명에 의한 전자 워터마크 데이터 삽입 장치는 블록 단위로 삽입될 전자 워터마크 데이터를 지정하기 위한 삽입 정보를 미리 저장하는 삽입 정보 메모리(39)와, 삽입 정보를 기초로 전자 워터마크 데이터 테이블(37)로부터 지정된 전자 워터마크 데이터를 블록단위로 양자화된 화상 블록에 삽입하기 위한 전자 워터마크 데이터 삽입부(33)를 포함한다. 본 발명에 의한 전자 워터마크 데이터 검출 장치는 블록단위로 삽입된 전자 워터마크 데이터에 의존하여 표시되는 바이어스된 주파수 영역을 가지는 화상 데이터를 추출하는 전자 워터마크 데이터 추출수단(45)과, 추출된 데이터와 전자 워터마크 데이터 테이블(48)에 저장된 전자 워터마크 데이터 사이의 통계적 유사성을 계산하기 위한 전자 워터마크 데이터 검출수단(50)을 포함한다. 전자 워터마크 데이터 누적기(51)는 일정 시간 동안 전자 워터마크 데이터 검출부(50)에 의해 계산된 통계적 유사도를 누적하여 누적 가산 결과를 생성하며, 이 누적 가산 결과는 미리 정해진 시간이 경과하거나 누적 가산 결과가 미리 정해진 임계치를 초과하는 경우에 리셋된다. 판정부(52)는 누적 가산치가 미리 정해진 임계치를 초과하면 전자 워터마크 데이터가 검출된 것으로 판정한다.
    워터마크 데이터 삽입 장치, 워터마크 데이터 누적기, 누적 가산치

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