INDEX DATABASE CREATING APPARATUS AND INDEX DATABASE RETRIEVING APPARATUS
    1.
    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

    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。

    Method and Apparatus for Hybrid Watermarking
    5.
    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

    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。

    Halogenated wang resins for combinatorial chemical synthesis
    6.
    发明授权
    Halogenated wang resins for combinatorial chemical synthesis 失效
    用于组合化学合成的卤化王树脂

    公开(公告)号:US06482898B1

    公开(公告)日:2002-11-19

    申请号:US09762780

    申请日:2001-04-12

    IPC分类号: C08F818

    CPC分类号: C07C43/23 C07B2200/11

    摘要: The present invention relates to novel halogenated Wang resins for combinational chemical synthesis, more specifically to halogenated Wang resins expressed by formula (1) useful for the effective tracing of combinational chemical synthetic process on solid supports using X-ray photoelectron spectroscopy (XPS) element analysis method; in formula (1), P represents polystyrene-divinylbenzene; X and Y represent hydrogen atom or halogen atom, which may be identical or different, their total number being 1-4; and at least one of them is halogen atom.

    摘要翻译: 本发明涉及用于组合化学合成的新型卤化Wang树脂,更具体地说,涉及用于使用X射线光电子能谱(XPS)元素分析在固体支持物上有效追踪组合化学合成方法的式(1)表示的卤化Wang树脂 方法; 在式(1)中,P表示聚苯乙烯 - 二乙烯基苯; X和Y表示氢原子或卤素原子,其可以相同或不同,它们的总数为1-4; 并且其中至少一个是卤素原子。

    Index database creating apparatus and index database retrieving apparatus
    7.
    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

    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。

    6-alkylamino-2,2′-disubstituted-7,8-disubstituted-2H-1-benzopyran derivatives as 5-lipoxygenase inhibitor

    公开(公告)号:US07368575B2

    公开(公告)日:2008-05-06

    申请号:US10970046

    申请日:2004-10-20

    IPC分类号: C07D311/00 C07D405/00

    摘要: When a multi-step process reaction is carried out in a solution, it generally requires several treatments and purification procedures to go through with after the reaction, however, the inventive method for preparing 2,2′-disubstituted-3,4-dihydro-7,8-disubstituted-6-amino benzopyran derivative using a solid-phased synthetic method simplifies the treatment and purification procedures after the reaction, which makes possible to efficiently construct numerous drug-like libraries. In particular, since the inventive method of the present invention comprises the steps of introducing a carbonate linker of formula 2 into Wang resin used as a common solid support (Step 1); synthesizing various benzopyran in a carbamate form of formula 3 as a key intermediate by reacting various amino benzopyran derivatives with the carbamate resin of formula 2 (Step 2); synthesizing 2,2′-disubstituted-3,4-2H-6-substituted benzopyran resin of formula 4 (Step 3); and synthesizing 2,2′-disubstituted-3,4-2H-6-alkylamino benzopyran derivative of formula 1 using a dichloromethane solution containing TFA or an organic solvent containing an organic acid, the inventive method is capable of efficiently synthesizing various 2,2′-disubstituted-3,4-2H-6-alkylamino benzopyran derivatives.Consequently, the present invention has developed a new technique for constructing 2,2′-disubstituted-3,4-2H-6-alkylamino benzopyran library using a solid-phase parallel synthetic method and makes increased the applicability of combinatorial chemical synthetic method. Further, 2,2′-disubstituted-3,4-2H-6-alkylamino benzopyran derivative prepared by the inventive method has a high inhibitory effect to 5-lipoxygenase (5-LO) activity, and therefore, can be effectively used for developing a new propylactic or therapeutic drug for leukotriene activation-related diseases such as chronic inflammation, rheumatic arthritis, colitis, asthma and psoriasis.