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    System and method for detecting scene change
    11.
    发明授权
    System and method for detecting scene change 有权
    用于检测场景变化的系统和方法

    公开(公告)号：US08421928B2

    公开(公告)日：2013-04-16

    申请号：US12538554

    申请日：2009-08-10

    Applicant: Young-Suk Yoon ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seunglae Lee ,  Young Ho Suh ,  Seunghwan Kim

    Inventor： Young-Suk Yoon ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seunglae Lee ,  Young Ho Suh ,  Seunghwan Kim

    IPC: H04N5/14 ,  G06K9/46

    CPC classification number: H04N5/147 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61 ,  H04N19/87

    Abstract: The present invention relates to a system for scene change detection including a decoder decoding input digital video data into video data compressed by a single codec or uncompressed video data in a codec-independent format, a normalizer normalizing the video data decoded by the decoder in a temporally and spatially uniform format, and a scene change detector computing a mode ratio for each frame of the normalized video data through a mode determination, and determining, when a frame has a mode ratio higher than a preset threshold value, that a scene change has occurred at the frame. The decoder decodes video data compression-coded by various video codecs into uncompressed video frames.

    Abstract translation: 本发明涉及一种用于场景变化检测的系统，包括：解码器，将输入的数字视频数据解码成由单一编解码器压缩的视频数据或解压缩编解码器格式的未压缩视频数据;归一化由解码器解码的视频数据的归一化 时间上和空间上均匀的格式，场景变化检测器通过模式确定来计算标准化视频数据的每帧的模式比，并且当帧具有高于预设阈值的模式比率时，确定场景变化具有 发生在框架。 解码器将由各种视频编解码器压缩编码的视频数据解码成未压缩的视频帧。

    INDEX DATABASE CREATING APPARATUS AND INDEX DATABASE RETRIEVING APPARATUS
    12.
    发明申请
    INDEX DATABASE CREATING APPARATUS AND INDEX DATABASE RETRIEVING APPARATUS 有权
    索引数据库创建设备和索引数据库检索设备

    公开(公告)号：US20100268715A1

    公开(公告)日：2010-10-21

    申请号：US12744146

    申请日：2008-12-08

    Applicant: Jin Soo Seo ,  Seungjae Lee ,  Sang Kwang Lee ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Young-Suk Yoon ,  Young Ho Suh ,  Weon Geun Oh

    Inventor： Jin Soo Seo ,  Seungjae Lee ,  Sang Kwang Lee ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Young-Suk Yoon ,  Young Ho Suh ,  Weon Geun Oh

    IPC: G06F17/30

    CPC classification number: G06F17/30247

    Abstract: An index database creating apparatus includes a feature extracting unit for extracting features from a content; an index creating unit for creating feature indices of the extracted features; an index selector for selecting one or more of the feature indices based on frequency-based importance levels thereof; and a feature index database for storing therein the selected feature indices along with locations thereof in the content. The index selector obtains the frequency-based importance levels based on frequency distributions of the feature indices in the content and in other contents to be stored in the feature index database.

    Abstract translation: 索引数据库创建装置包括：特征提取单元，用于从内容中提取特征; 索引创建单元，用于创建所提取的特征的特征索引; 索引选择器，用于基于其基于频率的重要性级别来选择一个或多个特征索引; 以及特征索引数据库，用于在其中存储所选择的特征索引及其在内容中的位置。 索引选择器基于要存储在特征索引数据库中的内容和其他内容中的特征索引的频率分布来获得基于频率的重要性级别。

    SYSTEM AND METHOD FOR DETECTING SCENE CHANGE
    14.
    发明申请
    SYSTEM AND METHOD FOR DETECTING SCENE CHANGE 有权
    用于检测场景变化的系统和方法

    公开(公告)号：US20100149424A1

    公开(公告)日：2010-06-17

    申请号：US12538554

    申请日：2009-08-10

    Applicant: Young-Suk YOON ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seunglae Lee ,  Young Ho Suh ,  Seunghwan Kim

    Inventor： Young-Suk YOON ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seunglae Lee ,  Young Ho Suh ,  Seunghwan Kim

    IPC: H04N5/14 ,  H04N7/12

    CPC classification number: H04N5/147 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/61 ,  H04N19/87

    Abstract: The present invention relates to a system for scene change detection including a decoder decoding input digital video data into video data compressed by a single codec or uncompressed video data in a codec-independent format, a normalizer normalizing the video data decoded by the decoder in a temporally and spatially uniform format, and a scene change detector computing a mode ratio for each frame of the normalized video data through a mode determination, and determining, when a frame has a mode ratio higher than a preset threshold value, that a scene change has occurred at the frame. The decoder decodes video data compression-coded by various video codecs into uncompressed video frames.

    Abstract translation: 本发明涉及一种用于场景变化检测的系统，包括：解码器，将输入的数字视频数据解码成由单一编解码器压缩的视频数据或解压缩编解码器格式的未压缩视频数据;归一化由解码器解码的视频数据 时间上和空间上均匀的格式，场景变化检测器通过模式确定来计算标准化视频数据的每帧的模式比，并且当帧具有高于预设阈值的模式比率时，确定场景变化具有 发生在框架。 解码器将由各种视频编解码器压缩编码的视频数据解码成未压缩的视频帧。

    Real time video watermarking method using frame averages
    15.
    发明申请
    Real time video watermarking method using frame averages 审中-公开
    实时视频水印方法使用帧平均

    公开(公告)号：US20050105763A1

    公开(公告)日：2005-05-19

    申请号：US10901073

    申请日：2004-07-29

    Applicant: Seung Lee ,  Jin Kim ,  Wonyoung Yoo

    Inventor： Seung Lee ,  Jin Kim ,  Wonyoung Yoo

    IPC: G11B20/10 ,  G06K9/00 ,  G06T1/00

    CPC classification number: G06T1/0085 ,  G06T1/0064 ,  G06T2201/0051 ,  G06T2201/0061 ,  H04N1/32208 ,  H04N1/32229 ,  H04N1/32251

    Abstract: The present invention relates to a watermarking method for protecting the copyright of digital data, which includes the step of dividing each of two successive frames into at least two sub-groups, the step of adding and subtracting a value, which varies according to pixel locations, to and from a specific component value at each pixel location of the sub-groups using Just Noticeable Difference (JND) values and averages of the specific component value at pixel locations of corresponding sub-groups of the two successive frames, the step of adaptively embedding watermark information while modifying embedment intensity of the watermark information, the step of calculating the averages of the specific component values of the sub-groups, and the step of extracting watermark information using the calculated averages.

    Abstract translation: 本发明涉及一种用于保护数字数据版权的水印方法，其包括将两个连续帧中的每一个划分为至少两个子组的步骤，添加和减去根据像素位置而变化的值 使用Just Noticeable Difference（JND）值和在两个连续帧的相应子组的像素位置处的特定分量值的平均值，在子组的每个像素位置处的特定分量值之间和从特定分量值，自适应 在修改水印信息的嵌入强度的同时嵌入水印信息，计算子组的特定分量值的平均值的步骤以及使用所计算的平均值提取水印信息的步骤。

    FORENSIC MARK INSERTION APPARATUS AND METHOD
    17.
    发明申请
    FORENSIC MARK INSERTION APPARATUS AND METHOD 失效
    威胁标记插入装置和方法

    公开(公告)号：US20110261997A1

    公开(公告)日：2011-10-27

    申请号：US13091569

    申请日：2011-04-21

    Applicant: Jung Ho Lee ,  Young Ho Suh ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seungjae Lee ,  Young-Suk Yoon

    Inventor： Jung Ho Lee ,  Young Ho Suh ,  Wonyoung Yoo ,  Yong-Seok Seo ,  Sang Kwang Lee ,  Seungjae Lee ,  Young-Suk Yoon

    IPC: G06K9/00

    CPC classification number: H04L9/0866 ,  G06F21/16 ,  H04L2209/606 ,  H04L2209/608 ,  H04N21/8358 ,  H04N21/8456

    Abstract: A forensic mark insertion apparatus includes: an original content segment storage unit for storing multiple original contents; and a service control unit for, in response to a request for a content from a user, retrieving an original content corresponding to the request for the content from the original content segment storage unit, separating the retrieved original content into plurality of content segments, selectively inserting a forensic mark into some of the content segments, and assembling the content segments to produce an forensic-mark inserted content to be provided to the user.

    Abstract translation: 法医标记插入装置包括：原始内容段存储单元，用于存储多个原始内容; 以及服务控制单元，用于响应于来自用户的内容的请求，从原始内容段存储单元检索与该内容的请求相对应的原始内容，选择性地将检索的原始内容分离成多个内容段 将取证标记插入到一些内容段中，以及组合内容段以产生要提供给用户的插入法定标记的内容。

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