-
公开(公告)号：KR100773963B1
公开(公告)日：2007-11-08
申请号：KR1020060076670
申请日：2006-08-14
Applicant: 한국전자통신연구원
Abstract: 본 발명은 핑거프린팅 관리 시스템 및 핑거프린트 코드 전달 방법에 관한 것으로서, 이미지, 오디오 또는 비디오 데이터를 포함하는 디지털 콘텐츠의 판매 또는 구매 등의 유통과정에서 디지털 콘텐츠가 판매될 때, 핑거프린팅 방식을 이용하여 상기 디지털 콘텐츠에 해당 구매자의 정보를 삽입하고, 해당 콘텐츠 구매자가 불법 복제한 후 인터넷이나 파일 공유 서버인 P2P(Peer to Peer) 서버 또는 웹하드 등에서 무단으로 배포하는 경우, 검색 시스템을 이용하여 해당 콘텐츠를 찾아내어 콘텐츠에 삽입된 핑거프린트 정보로부터 불법 복제한 구매자를 추적한다. 이와 같이, 디지털 콘텐츠의 구매자에 대한 정보가 핑거프린트 코드의 형태로 디지털 콘텐츠에 삽입되고, 이러한 디지털 콘텐츠가 불법적으로 복제될 경우에는 해당 콘텐츠의 구매자를 용이하게 역추적함으로써 디지털 콘텐츠의 불법 복제를 원천적으로 방지할 수 있다.
불법 복제, 핑거프린트(fingerprint), 핑거프린팅 삽입, 핑거프린팅 추출, DRM, 암호화-
公开(公告)号：KR1020070107317A
公开(公告)日：2007-11-07
申请号：KR1020060039649
申请日：2006-05-02
Applicant: 한국전자통신연구원
CPC classification number: G06T1/0071 , G06T2201/0052
Abstract: A method and an apparatus for hybrid image watermarking are provided to double a non-visual property of a watermark by adaptively inserting the watermark into a digital image using two watermarking techniques. An edge map of a digital image is obtained(S115). The digital image is divided into a low frequency region and a high frequency region by comparing the edge map with a predetermined reference value(S117). A watermark is inserted into the low frequency region of the digital image using HVS(Human Visual System)(S121). The watermark is inserted into the high frequency region of the digital image using QIM(Quantization Index Modulation)(S131).
Abstract translation: 提供一种用于混合图像水印的方法和装置，以通过使用两种水印技术将水印自适应地插入数字图像来对水印的非视觉特性进行加倍。 获得数字图像的边缘图（S115）。 通过将边缘图与预定的参考值进行比较，数字图像被分成低频区域和高频区域（S117）。 使用HVS（人类视觉系统）将水印插入数字图像的低频区域（S121）。 使用QIM（量化索引调制）（S131）将水印插入数字图像的高频区域。
-
公开(公告)号：KR1020080010028A
公开(公告)日：2008-01-30
申请号：KR1020060069970
申请日：2006-07-25
Applicant: 한국전자통신연구원
CPC classification number: G06F17/30864
Abstract: A system and a method for searching illegal contents automatically in the Internet by using a connection/search application are provided to search illegal contents automatically in a charged P2P(Peer-to-Peer)/webhard by editing an illegal contents searching/downloading script file based on configuration information of the connection/search application in a website, and controlling the application with the script file to search/download the illegal contents automatically. A keyword input part(13) receives a keyword related to the contents from a searcher and manages the keyword with a keyword group. A script file editor(14) edits the illegal contents searching/downloading script file by using a Windows class ID, which controls the connection/search application(11), extracted from the configuration information of the application. A script file automating part(15) controls the application to search/download the illegal contents related to the keyword group automatically according to the script file. An illegal contents information storing part(16) stores illegal contents information searched/downloaded by the application. An information manager(12) manages the configuration/connection information of the application.
Abstract translation: 提供了一种通过使用连接/搜索应用程序在互联网中自动搜索非法内容的系统和方法，用于通过编辑非法内容搜索/下载脚本文件来自动搜索在点对点（Peer-to-Peer）/ webhard中的非法内容 基于网站中的连接/搜索应用的配置信息，并且利用脚本文件控制应用程序来自动搜索/下载非法内容。 关键词输入部（13）从搜索者接收与内容有关的关键词，并用关键字组来管理该关键词。 脚本文件编辑器（14）通过使用从应用程序的配置信息中提取的控制连接/搜索应用程序（11）的Windows类ID来编辑非法内容搜索/下载脚本文件。 脚本文件自动化部（15）控制应用程序根据脚本文件自动搜索/下载与关键字组相关的非法内容。 非法内容信息存储部（16）存储由应用搜索/下载的非法内容信息。 信息管理器（12）管理应用的配置/连接信息。
-
公开(公告)号：KR100693371B1
公开(公告)日：2007-03-09
申请号：KR1020050109002
申请日：2005-11-15
Applicant: 한국전자통신연구원
Abstract: A multi-bit fingerprint insertion/extraction method based on a wavelet is provided to recover an image where geometric transformation occurs by using a synchronizing signal and extract a fingerprint of multiple bits from the recovered image. N-level DWT(Discrete Wavelet Transformation) of an original image is performed and thereby the original image is disassembled into the first, second, third and fourth sub-band images. An HVS(Human Visual System) is obtained from the first sub-band image(S11). A fingerprint signal of multiple bits is subjected to message modulation by a secret key and a synchronization pattern is added to the modulated fingerprint signal and thereby a fingerprint basis block is created(S12). By reference to the obtained HVS, the created fingerprint basis block is repeatedly inserted into the second, third and fourth sub-band images(S13). Inverse DWT of the first sub-band image and the sub-band images into which the fingerprint basis block is inserted is performed and thereby an image into which a fingerprint is inserted is obtained(S15).
Abstract translation: 提供基于小波的多位指纹插入/提取方法，以通过使用同步信号来恢复出现几何变换的图像，并从恢复的图像中提取多位指纹。 执行原始图像的N级DWT（离散小波变换），从而将原始图像拆分为第一，第二，第三和第四子带图像。 从第一子带图像获得HVS（人类视觉系统）（S11）。 通过秘密密钥对多位指纹信号进行消息调制，并将同步图案添加到调制指纹信号，从而创建指纹基础块（S12）。 通过参考获得的HVS，将所创建的指纹基础块重复插入第二，第三和第四子带图像（S13）。 执行第一子带图像和插入了指纹基础块的子带图像的逆DWT，从而获得插入了指纹的图像（S15）。
-
-
-
Search Results
24
records
(took 0.018 seconds)
