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    • 1. 发明申请
    • Precise and thorough background subtraction
    • 精确和彻底的背景减法
    • US20100213368A1
    • 2010-08-26
    • US12709474
    • 2010-02-20
    • Xin WangHaiying Zhang
    • Xin WangHaiying Zhang
    • H01J49/26H01J49/02
    • H01J49/0036
    • A method for identifying and characterizing components of interest in complex samples includes subjecting both a sample and its control samples to chromatography/high resolution mass spectrometry analysis to detect ions of the samples. The method includes defining sections of control sample data within specified chromatographic fluctuation time and mass precision windows around each ion or each group of the same ions of question in the test sample data. The defined sections of the control sample data are examined and the maximal intensities are subtracted from respective ions in the test sample. Components of interest are determined from the resultant data of the test sample. The method can be used for identifying molecular ions and/or their fragment ions for components of interest in complex samples.
    • 用于鉴定和表征复杂样品中感兴趣的组分的方法包括将样品及其对照样品进行色谱/高分辨率质谱分析以检测样品的离子。 该方法包括在测试样本数据中围绕每个离子或每组相同离子的指定色谱波动时间和质量精密窗口中定义控制样本数据的部分。 检查对照样品数据的限定部分,并从测试样品中的相应离子中减去最大强度。 从测试样品的结果数据确定感兴趣的组分。 该方法可用于鉴定复合样品中感兴趣组分的分子离子和/或其碎片离子。
    • 2. 发明授权
    • Precise and thorough background subtraction
    • 精确和彻底的背景减法
    • US08304719B2
    • 2012-11-06
    • US12709474
    • 2010-02-20
    • Xin WangHaiying Zhang
    • Xin WangHaiying Zhang
    • H01J49/00
    • H01J49/0036
    • A method for identifying and characterizing components of interest in complex samples includes subjecting both a sample and its control samples to chromatography/high resolution mass spectrometry analysis to detect ions of the samples. The method includes defining sections of control sample data within specified chromatographic fluctuation time and mass precision windows around each ion or each group of the same ions of question in the test sample data. The defined sections of the control sample data are examined and the maximal intensities are subtracted from respective ions in the test sample. Components of interest are determined from the resultant data of the test sample. The method can be used for identifying molecular ions and/or their fragment ions for components of interest in complex samples.
    • 用于鉴定和表征复杂样品中感兴趣的组分的方法包括将样品及其对照样品进行色谱/高分辨率质谱分析以检测样品的离子。 该方法包括在测试样本数据中围绕每个离子或每组相同离子的指定色谱波动时间和质量精密窗口中定义控制样本数据的部分。 检查对照样品数据的限定部分,并从测试样品中的相应离子中减去最大强度。 从测试样品的结果数据确定感兴趣的组分。 该方法可用于鉴定复合样品中感兴趣组分的分子离子和/或其碎片离子。
    • 9. 发明授权
    • Shadow detection method and device
    • 阴影检测方法和设备
    • US09142011B2
    • 2015-09-22
    • US14276053
    • 2014-05-13
    • Shengyin FanXin WangQian WangGang Qiao
    • Shengyin FanXin WangQian WangGang Qiao
    • G06T5/00G06T7/00
    • G06T5/008G06T7/11G06T7/194G06T2200/04G06T2207/10012G06T2207/10024G06T2207/30196G06T2207/30232
    • Disclosed are a shadow detection method and device. The method includes a step of obtaining a depth/disparity map and color/grayscale image from a two-lens camera or stereo camera; a step of detecting and acquiring plural foreground points; a step of projecting the acquired plural foreground points into a 3-dimensional coordinate system; a step of carrying out, in the 3-dimensional coordinate system, a clustering process with respect to the projected plural foreground points so as to divide the projected plural foreground points into one or more point clouds; a step of calculating density distribution of each of the one or more point clouds by adopting a principal component analysis algorithm so as to obtain one or more principal component values of the corresponding point cloud; and a step of determining, based on the one or more principal component values, whether the corresponding point cloud is a shadow.
    • 公开了一种阴影检测方法和装置。 该方法包括从双镜头相机或立体相机获取深度/视差图和彩色/灰度图像的步骤; 检测并获取多个前景点的步骤; 将所获取的多个前景点投影到三维坐标系中的步骤; 在三维坐标系中执行相对于投影的多个前景点的聚类处理,以将投影的多个前景点划分成一个或多个点云的步骤; 通过采用主成分分析算法计算一个或多个点云中的每一个点的密度分布以便获得对应点云的一个或多个主成分值的步骤; 以及基于所述一个或多个主成分值来确定对应的点云是否是阴影的步骤。