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    • 82. 发明申请
    • Method, apparatus, and program for human figure region extraction
    • 人脸图像提取的方法,装置和程序
    • US20080002890A1
    • 2008-01-03
    • US11819465
    • 2007-06-27
    • Yi Hu
    • Yi Hu
    • G06K9/46
    • G06K9/00362G06K9/00234G06K9/00248
    • Upon extraction of a human figure region in an image, a face or facial part is detected in the image, and an estimated region which is estimated to include the human figure region is determined from position information of the detected face or facial part. The human figure region is extracted in the estimated region. Judgment is made as to whether at least a portion of the human figure region exists in an outline periphery region of the estimated region, and the estimated region is extended and updated so as to include a near outer region near the human figure region in the outline periphery region and outside the estimated region, in the case where a result of the judgment is affirmative. The human figure region is extracted in the extended and updated estimated region.
    • 在提取图像中的人物图形区域时,在图像中检测到面部或面部部分,并且根据检测到的面部或面部部分的位置信息确定估计为包括人体图像区域的估计区域。 在估计的地区提取人物图。 判断人体图形区域的至少一部分是否存在于估计区域的轮廓周边区域中,并且估计区域被扩展和更新,以便包括轮廓中的人体图形区域附近的近外部区域 在判定结果为肯定的情况下,在估计区域外。 在扩展和更新的估计区域中提取人物地区。
    • 87. 发明授权
    • Impedance measurement system for power system transmission lines
    • 电力系统传输线阻抗测量系统
    • US06397156B1
    • 2002-05-28
    • US09192851
    • 1998-11-17
    • Bernhard BachmannDavid G. HartYi HuDamir NovoselMurari M. Saha
    • Bernhard BachmannDavid G. HartYi HuDamir NovoselMurari M. Saha
    • G01R2500
    • H02H3/40H02H1/04
    • An accurate impedance measurement method for a power system transmission line is disclosed for improving various protection functions, i.e., distance protection and/or fault location estimation. The method is less sensitive to harmonics and other transient problems introduced to power systems by series capacitance and the like, and is easily incorporated into existing protective relays. In the method, a number (n) of current and voltage samples (Ik, Vk) representative of values of current and voltage waveforms are measured, respectively, at successive instants of time on a conductor in a power system. The number n is an integer greater than I and the index k takes on values of 1 to n. Resistance (R) and inductance (L) values are computed in accordance with an equation in which R and L are related to sums of differences in values of successive current and voltage samples. A prescribed power system function is then performed based on the computed R and L values.
    • 公开了一种用于电力系统传输线路的精确阻抗测量方法,用于改进各种保护功能,即距离保护和/或故障位置估计。 该方法对通过串联电容等引入电力系统的谐波和其他瞬态问题较不敏感,并且容易地并入现有的保护继电器中。 在该方法中,分别在电力系统中的导体上的连续时刻分别测量表示电流和电压波形值的电流和电压样本数(Ik,Vk)的数量(n)。 数字n是大于I的整数,索引k取值为1到n。 电阻(R)和电感(L)值根据其中R和L与连续电流和电压样本的值的差的和相关的方程式来计算。 然后根据计算的R和L值执行规定的电力系统功能。
    • 88. 发明授权
    • Harmonic resonance control and protection system for switched power factor control capacitor devices
    • 用于开关式功率因数控制电容器的谐波共振控制和保护系统
    • US06181113B2
    • 2001-01-30
    • US09363426
    • 1999-07-29
    • Yi HuLe TangHarry G. MathewsRichard E. Tyner
    • Yi HuLe TangHarry G. MathewsRichard E. Tyner
    • G05F300
    • H02M1/12G05F1/70
    • A method and system for preventing sustained resonance conditions in a power system involves measuring voltage and current samples on a conductor to which a plurality of controlled capacitors are operatively coupled. The measured voltage and/or current is utilized to identify a resonance condition. The method or system determines whether the resonance condition is due to switching of a controlled capacitor and, if so a corrective switching operation is performed after a first time delay. If the resonance condition is determined not to be due to the switching of a capacitor, then a second switching operation, in which a second controlled capacitor is switched after a second time delay, is performed. The second time delay is preferably greater than the first time delay.
    • 用于防止电力系统中的持续共振条件的方法和系统包括测量导体上的电压和电流样本,多个受控电容器可操作地耦合到该导体上。 测量的电压和/或电流用于识别共振条件。 该方法或系统确定谐振条件是由于受控电容器的切换引起的,如果是,则在第一时间延迟之后执行校正切换操作。 如果确定谐振条件不是由于电容器的切换引起的,则执行在第二时间延迟之后切换第二受控电容器的第二开关操作。 第二时间延迟优选地大于第一时间延迟。