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    • 1. 发明授权
    • Generating a base curve database to reduce storage cost
    • 生成基线曲线数据库以降低存储成本
    • US07444605B2
    • 2008-10-28
    • US11245550
    • 2005-10-06
    • Xin WangHarold J. LevyMichael N. Misheloff
    • Xin WangHarold J. LevyMichael N. Misheloff
    • G06F17/50
    • G06F17/5045
    • An enhanced library accessible by an EDA tool can include a base curve database and a plurality of curve data sets. Each curve data set refers to a standard cell having certain timing characteristics. To determine those timing characteristics, each curve data set identifies at least one base curve (in the base curve database) as well as a starting current, a peak current, a peak voltage, and a peak time. In one embodiment, each base curve can be normalized. The base curve(s), the starting current, peak current, peak voltage, and peak time can accurately model the functioning of the IC device, e.g. represented by an I(V) curve.
    • 由EDA工具可访问的增强库可以包括基线曲线数据库和多个曲线数据集。 每个曲线数据集是指具有某些定时特性的标准单元。 为了确定这些时序特性,每个曲线数据集识别至少一个基本曲线(在基线曲线数据库中)以及启动电流,峰值电流,峰值电压和峰值时间。 在一个实施例中,每个基本曲线可以被归一化。 基本曲线,起始电流,峰值电流,峰值电压和峰值时间可以精确地模拟IC器件的功能,例如, 由I(V)曲线表示。
    • 2. 发明授权
    • Generating a base curve database to reduce storage cost
    • 生成基线曲线数据库以降低存储成本
    • US08069424B2
    • 2011-11-29
    • US12212606
    • 2008-09-17
    • Xin WangHarold J. LevyMichael N. Misheloff
    • Xin WangHarold J. LevyMichael N. Misheloff
    • G06F17/50
    • G06F17/5045
    • An enhanced library accessible by an EDA tool can include a base curve database and a plurality of curve data sets. Each curve data set refers to a standard cell having certain timing characteristics. To determine those timing characteristics, each curve data set identifies at least one base curve (in the base curve database) as well as a starting current, a peak current, a peak voltage, and a peak time. In one embodiment, each base curve can be normalized. The base curve(s), the starting current, peak current, peak voltage, and peak time can accurately model the functioning of the IC device, e.g. represented by an I(V) curve.
    • 由EDA工具可访问的增强库可以包括基线曲线数据库和多个曲线数据集。 每个曲线数据集是指具有某些定时特性的标准单元。 为了确定这些时序特性,每个曲线数据集识别至少一个基本曲线(在基线曲线数据库中)以及启动电流,峰值电流,峰值电压和峰值时间。 在一个实施例中,每个基本曲线可以被归一化。 基本曲线,起始电流,峰值电流,峰值电压和峰值时间可以精确地模拟IC器件的功能,例如, 由I(V)曲线表示。
    • 3. 发明申请
    • Generating A Base Curve Database To Reduce Storage Cost
    • 生成基础曲线数据库以降低存储成本
    • US20090013291A1
    • 2009-01-08
    • US12212606
    • 2008-09-17
    • Xin WangHarold J. LevyMichael N. Misheloff
    • Xin WangHarold J. LevyMichael N. Misheloff
    • G06F17/50
    • G06F17/5045
    • An enhanced library accessible by an EDA tool can include a base curve database and a plurality of curve data sets. Each curve data set refers to a standard cell having certain timing characteristics. To determine those timing characteristics, each curve data set identifies at least one base curve (in the base curve database) as well as a starting current, a peak current, a peak voltage, and a peak time. In one embodiment, each base curve can be normalized. The base curve(s), the starting current, peak current, peak voltage, and peak time can accurately model the functioning of the IC device, e.g. represented by an I(V) curve.
    • 由EDA工具可访问的增强库可以包括基线曲线数据库和多个曲线数据集。 每个曲线数据集是指具有某些定时特性的标准单元。 为了确定这些时序特性,每个曲线数据集识别至少一个基本曲线(在基线曲线数据库中)以及启动电流,峰值电流,峰值电压和峰值时间。 在一个实施例中,每个基本曲线可以被归一化。 基本曲线,起始电流,峰值电流,峰值电压和峰值时间可以精确地模拟IC器件的功能,例如, 由I(V)曲线表示。
    • 10. 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。