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    Method and Apparatus for Hybrid Watermarking
    3.
    发明申请
    Method and Apparatus for Hybrid Watermarking 审中-公开
    混合水印方法与装置

    公开(公告)号：US20090172404A1

    公开(公告)日：2009-07-02

    申请号：US12226915

    申请日：2006-08-11

    申请人： Won Gyum Kim ,  Yong-Seok Seo ,  Seon Hwa Lee ,  Wonyoung Yoo ,  Sang Kwang Lee ,  Sung Hwan Lee ,  Seungjae Lee ,  Hye Won Jung ,  Young-Suk Yoon ,  Jin Soo Seo ,  Young Ho Suh ,  Weon Geun Oh

    发明人： Won Gyum Kim ,  Yong-Seok Seo ,  Seon Hwa Lee ,  Wonyoung Yoo ,  Sang Kwang Lee ,  Sung Hwan Lee ,  Seungjae Lee ,  Hye Won Jung ,  Young-Suk Yoon ,  Jin Soo Seo ,  Young Ho Suh ,  Weon Geun Oh

    IPC分类号： H04L9/00 ,  G06K9/36 ,  G06K9/46 ,  G06K9/40

    CPC分类号： G06T1/0071 ,  G06T2201/0052

    摘要： A hybrid watermark insertion method includes the steps of dividing the digital image into a low frequency region and a high frequency region using an edge map of the digital image; inserting a watermark into the low frequency region of the image by employing a watermarking method using a human visual system (HVS); and inserting the watermark into the high frequency region of the image by employing a quantization index modulation (QIM) method. A hybrid watermark extraction method includes the steps of estimating a reference value used when inserting a watermark, and searching a maximum value of correlation coefficients in an image of the watermark image while changing the estimated reference value within a designated range, to thereby find out the watermark insertion method. Accordingly, the watermark insertion method can be easily identified, thereby enabling the watermark extraction in a more readily manner.

    摘要翻译： 混合水印插入方法包括以下步骤：使用数字图像的边缘图将数字图像分割成低频区域和高频区域; 通过使用人类视觉系统（HVS）的水印方法将水印插入图像的低频区域; 并通过采用量化索引调制（QIM）方法将水印插入图像的高频区域。 混合水印提取方法包括以下步骤：估计在插入水印时使用的参考值，并且在指定范围内改变估计的参考值的同时，在水印图像的图像中搜索相关系数的最大值，从而找出 水印插入法。 因此，可以容易地识别水印插入方法，从而能够更容易地进行水印提取。

    Index database creating apparatus and index database retrieving apparatus
    4.
    发明授权
    Index database creating apparatus and index database retrieving apparatus 有权
    索引数据库创建装置和索引数据库检索装置

    公开(公告)号：US08341161B2

    公开(公告)日：2012-12-25

    申请号：US12744146

    申请日：2008-12-08

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

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

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30247

    摘要： 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.

    摘要翻译： 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。

    INDEX DATABASE CREATING APPARATUS AND INDEX DATABASE RETRIEVING APPARATUS
    6.
    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

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

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

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30247

    摘要： 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.

    摘要翻译： 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。

    Apparatus and method for extracting features of video, and system and method for identifying videos using same
    8.
    发明授权
    Apparatus and method for extracting features of video, and system and method for identifying videos using same 有权
    用于提取视频特征的装置和方法，以及使用其识别视频的系统和方法

    公开(公告)号：US08620107B2

    公开(公告)日：2013-12-31

    申请号：US12405784

    申请日：2009-03-17

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

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

    IPC分类号： G06K9/36

    CPC分类号： G06K9/00711 ,  G06K9/4642

    摘要： An apparatus for extracting features from a video includes a frame rate converter for performing a frame rate conversion on the video to a preset frame rate, a gray scale converter for performing a grey scale conversion on the frame rate-converted video, a frame size normalizer for performing a frame size normalization on the gray scale-converted video to a preset image size, and a feature extractor for partitioning the normalized video into image blocks of a predetermined size, and extracting features from the image blocks on the basis of luminance values of the image blocks. A video identification system employs the feature extracting apparatus to identify an original video and an object video.

    摘要翻译： 一种用于从视频中提取特征的装置包括一个用于对视频执行帧速率转换为预设帧率的帧速率转换器，用于对经帧转换的视频执行灰度转换的灰度转换器，一个帧大小归一化器 用于将经灰度转换的视频执行帧大小归一化为预设图像大小;以及特征提取器，用于将归一化视频分割成预定大小的图像块，并且基于图像块的亮度值提取特征 图像块。 视频识别系统采用特征提取装置来识别原始视频和对象视频。

    APPARATUS AND METHOD FOR EXTRACTING FEATURES OF VIDEO, AND SYSTEM AND METHOD FOR IDENTIFYING VIDEOS USING SAME
    9.
    发明申请
    APPARATUS AND METHOD FOR EXTRACTING FEATURES OF VIDEO, AND SYSTEM AND METHOD FOR IDENTIFYING VIDEOS USING SAME 有权
    用于提取视频特征的装置和方法，以及使用其识别视频的系统和方法

    公开(公告)号：US20090238465A1

    公开(公告)日：2009-09-24

    申请号：US12405784

    申请日：2009-03-17

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

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

    IPC分类号： G06K9/46 ,  G06K9/68

    CPC分类号： G06K9/00711 ,  G06K9/4642

    摘要： An apparatus for extracting features from a video includes a frame rate converter for performing a frame rate conversion on the video to a preset frame rate, a gray scale converter for performing a grey scale conversion on the frame rate-converted video, a frame size normalizer for performing a frame size normalization on the gray scale-converted video to a preset image size, and a feature extractor for partitioning the normalized video into image blocks of a predetermined size, and extracting features from the image blocks on the basis of luminance values of the image blocks. A video identification system employs the feature extracting apparatus to identify an original video and an object video.

    摘要翻译： 一种用于从视频中提取特征的装置包括一个用于对视频执行帧速率转换为预设帧率的帧速率转换器，用于对经帧转换的视频执行灰度转换的灰度转换器，一个帧大小归一化器 用于将经灰度转换的视频执行帧大小归一化为预设图像大小;以及特征提取器，用于将归一化视频分割成预定大小的图像块，并且基于图像块的亮度值提取特征 图像块。 视频识别系统采用特征提取装置来识别原始视频和对象视频。