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    • 71. 发明授权
    • Method and system for object detection and tracking
    • 物体检测和跟踪的方法和系统
    • US07929730B2
    • 2011-04-19
    • US11959462
    • 2007-12-19
    • Ching-Chun HuangYao-Jen Chang
    • Ching-Chun HuangYao-Jen Chang
    • G06K9/00H04N7/18
    • G06T7/277G06T7/254G06T2207/10016G06T2207/20081G06T2207/30232
    • Disclosed is a method and system for object detection and tracking. Spatio-temporal information for a foreground/background appearance module is updated, based on a new input image and the accumulated previous appearance information and foreground/background information module labeling information over time. Object detection is performed according to the new input image and the updated spatio-temporal information and transmitted previous information over time, based on the labeling result generated by the object detection. The information for the foreground/background appearance module is repeatedly updated until a convergent condition is reached. The produced labeling result from objection detection is considered as a new tracking measurement for further updating on a tracking prediction module. A final tracking result may be obtained through the updated tracking prediction module, which is determined by the current tracking measurement and the previous observed tracking results. The tracking object location at the next time is predicted. The returned predicted appearance information for the foreground/background object is used as the input for updating the foreground and background appearance module. The returned labeling information is used as the information over time for the object detection.
    • 公开了一种用于物体检测和跟踪的方法和系统。 基于新的输入图像和累积的先前出现信息以及前景/背景信息模块标签信息随时间更新前景/背景外观模块的时空信息。 基于由对象检测产生的标记结果,根据新的输入图像和更新的时空信息以及随时间发送的先前信息执行对象检测。 前景/背景外观模块的信息被重复更新,直到达到收敛条件。 产生的异常检测标记结果被认为是跟踪预测模块进一步更新的新的跟踪测量。 可以通过更新的跟踪预测模块获得最终跟踪结果,该模块由当前跟踪测量和先前观察的跟踪结果确定。 预测下一次的跟踪对象位置。 用于前景/背景对象的返回的预测外观信息用作更新前景和背景外观模块的输入。 返回的标签信息被用作对象检测的随着时间的信息。
    • 72. 发明授权
    • Biometrics-based cryptographic key generation system and method
    • 基于生物识别的加密密钥生成系统和方法
    • US07804956B2
    • 2010-09-28
    • US11077014
    • 2005-03-11
    • Yao-Jen ChangTsu-Han ChenWen-De Zhang
    • Yao-Jen ChangTsu-Han ChenWen-De Zhang
    • H04L9/22G10L19/00
    • H04L9/0866
    • The present invention provides a biometrics-based cryptographic key generation system and method. A user-dependent distinguishable feature transform unit provides a feature transformation for each authentic user, which receives N-dimensional biometric features and performs a feature transformation to produce M-dimensional feature signals, such that the transformed feature signals of the authentic user are compact in the transformed feature space while those of other users presumed as imposters are either diverse or far away from those of the authentic user. A stable key generation unit receives the transformed feature signals to produce a cryptographic key based on bit information respectively provided by the M-dimensional feature signals, wherein the length of the bit information provided by the feature signal of each dimension is proportional to the degree of distinguishability in the dimension.
    • 本发明提供一种基于生物识别的密码密钥生成系统和方法。 用户依赖的可区分特征变换单元​​为接收N维生物特征并执行特征变换以产生M维特征信号的每个可信用户提供特征变换,使得可信用户的变换特征信号紧凑 转换的特征空间,而被认为是冒名顶替者的其他用户的多样化或远离真实用户的那些。 稳定的密钥生成单元基于由M维特征信号分别提供的比特信息,接收变换后的特征信号,生成加密密钥,其中由各维度的特征信号提供的比特信息的长度与 维度上的区分性。
    • 73. 发明申请
    • Method And System For Object Detection And Tracking
    • 对象检测和跟踪的方法和系统
    • US20090110236A1
    • 2009-04-30
    • US11959462
    • 2007-12-19
    • Ching-Chun HuangYao-Jen Chang
    • Ching-Chun HuangYao-Jen Chang
    • G06K9/00
    • G06T7/277G06T7/254G06T2207/10016G06T2207/20081G06T2207/30232
    • Disclosed is a method and system for object detection and tracking. Spatio-temporal information for a foreground/background appearance module is updated, based on a new input image and the accumulated previous appearance information and foreground/background information module labeling information over time. Object detection is performed according to the new input image and the updated spatio-temporal information and transmitted previous information over time, based on the labeling result generated by the object detection. The information for the foreground/background appearance module is repeatedly updated until a convergent condition is reached. The produced labeling result from objection detection is considered as a new tracking measurement for further updating on a tracking prediction module. A final tracking result may be obtained through the updated tracking prediction module, which is determined by the current tracking measurement and the previous observed tracking results. The tracking object location at the next time is predicted. The returned predicted appearance information for the foreground/background object is used as the input for updating the foreground and background appearance module. The returned labeling information is used as the information over time for the object detection.
    • 公开了一种用于物体检测和跟踪的方法和系统。 基于新的输入图像和累积的先前出现信息以及前景/背景信息模块标签信息随时间更新前景/背景外观模块的时空信息。 基于由对象检测产生的标记结果,根据新的输入图像和更新的时空信息以及随时间发送的先前信息执行对象检测。 前景/背景外观模块的信息被重复更新,直到达到收敛条件。 产生的异常检测标记结果被认为是跟踪预测模块进一步更新的新的跟踪测量。 可以通过更新的跟踪预测模块获得最终跟踪结果,该模块由当前跟踪测量和先前观察的跟踪结果确定。 预测下一次的跟踪对象位置。 用于前景/背景对象的返回的预测外观信息用作更新前景和背景外观模块的输入。 返回的标签信息被用作对象检测的随着时间的信息。
    • 75. 发明申请
    • Reduction of Cross-Talk for a Dual View Display Device
    • 减少双重显示设备的对讲
    • US20080137003A1
    • 2008-06-12
    • US11695385
    • 2007-04-02
    • Hendrik LouwsmaChia-Yi TsaiYao-Jen Chang
    • Hendrik LouwsmaChia-Yi TsaiYao-Jen Chang
    • G02F1/1335
    • G02F1/133512
    • Display devices for displaying a first and second view are provided. A representative display device includes a color generating layer (CF) and an array layer (AR). The color generating layer incorporates a plurality of color elements arranged in a two-dimensional array extending in a plurality of rows in a horizontal direction (X) and a plurality of columns in a vertical direction (Y). The array layer includes array metal circuitry covering a portion of each of the color elements. The color generating layer includes means for preventing light generated for one of the first and second views from being transmitted by reflection by at least a portion of a surface of the array metal circuitry in a direction of the other of the first and second views.
    • 提供了用于显示第一和第二视图的显示装置。 代表性的显示装置包括彩色发生层(CF)和阵列层(AR)。 色彩生成层包括以水平方向(X)和多个垂直方向(Y)列的方式排列成二维阵列的多个色彩元素。 阵列层包括覆盖每个颜色元素的一部分的阵列金属电路。 彩色发生层包括用于防止通过第一和第二视图中另一个的方向的阵列金属电路的表面的至少一部分的反射来传输对第一和第二视图中的一个产生的光的装置。
    • 76. 发明申请
    • Learning Assessment Method And Device Using A Virtual Tutor
    • 使用虚拟导师的学习评估方法和设备
    • US20080020363A1
    • 2008-01-24
    • US11539178
    • 2006-10-06
    • Yao-Jen Chang
    • Yao-Jen Chang
    • G09B5/00
    • G09B5/00
    • Disclosed is a learning assessment method and device using a virtual tutor. The device comprises at least one action acquisition module, a virtual tutor synthesis module, and a learning assessment module. The method captures and analyzes a first and a second action-feature for a first and a second targets respectively, and constructs an intrinsic model of the second target based on a reference data of the second target. A virtual tutor is synthesized by applying the first action-feature to the intrinsic model such that the virtual tutor exhibits the intrinsic characteristics of the second target but performs a synthesized action-feature similar to the first action-feature. The method then assesses the difference between the synthesized action-feature and the second action-feature.
    • 公开了一种使用虚拟导师的学习评估方法和装置。 该装置包括至少一个动作获取模块,虚拟辅导员合成模块和学习评估模块。 该方法分别捕获并分析第一和第二目标的第一和第二动作特征,并且基于第二目标的参考数据构建第二目标的固有模型。 通过将第一动作特征应用到本征模型来合成虚拟辅导员,使得虚拟教师展示第二目标的固有特征,但执行与第一动作特征相似的合成动作特征。 然后,该方法评估合成动作特征与第二动作特征之间的差异。
    • 77. 发明申请
    • Biometrics-based cryptographic key generation system and method
    • 基于生物识别的加密密钥生成系统和方法
    • US20060083372A1
    • 2006-04-20
    • US11077014
    • 2005-03-11
    • Yao-Jen ChangTsu-Han ChenWen-De Zhang
    • Yao-Jen ChangTsu-Han ChenWen-De Zhang
    • H04L9/00
    • H04L9/0866
    • The present invention provides a biometrics-based cryptographic key generation system and method. A user-dependent distinguishable feature transform unit provides a feature transformation for each authentic user, which receives N-dimensional biometric features and performs a feature transformation to produce M-dimensional feature signals, such that the transformed feature signals of the authentic user are compact in the transformed feature space while those of other users presumed as imposters are either diverse or far away from those of the authentic user. A stable key generation unit receives the transformed feature signals to produce a cryptographic key based on bit information respectively provided by the M-dimensional feature signals, wherein the length of the bit information provided by the feature signal of each dimension is proportional to the degree of distinguishability in the dimension.
    • 本发明提供一种基于生物识别的密码密钥生成系统和方法。 用户依赖的可区分特征变换单元​​为接收N维生物特征并执行特征变换以产生M维特征信号的每个可信用户提供特征变换,使得可信用户的变换特征信号紧凑 转换的特征空间,而被认为是冒名顶替者的其他用户的多样化或远离真实用户的那些。 稳定的密钥生成单元基于由M维特征信号分别提供的比特信息,接收变换后的特征信号,生成加密密钥,其中由各维度的特征信号提供的比特信息的长度与 维度上的区分性。
    • 78. 发明授权
    • Hybrid reactive power compensation device
    • 混合无功补偿装置
    • US06982546B2
    • 2006-01-03
    • US10646755
    • 2003-08-25
    • Chin-Chang WuHurng-Liang ChouWen-Pin HsuYao-Jen Chang
    • Chin-Chang WuHurng-Liang ChouWen-Pin HsuYao-Jen Chang
    • G05F1/70
    • G05F1/70
    • A hybrid reactive power compensation device comprises a passive type reactive power compensator and an active type reactive power compensator serially connected thereto. The passive type reactive power compensator is an AC power capacitor adapted to provide the reactive power that reduces capacity of the active type reactive power compensator. The active type reactive power compensator comprises a power converter, a DC capacitor, a high-frequency ripple filter and a controller. The hybrid reactive power compensation device can supply a linearly adjustable reactive power within a predetermined range, and is adapted to supply a current with a nearly sinusoidal waveform. Therefore, it can avoid the destruction of AC power capacitor caused by the power resonance.
    • 混合无功功率补偿装置包括无源式无功功率补偿器和与其串联的有源型无功功率补偿器。 无源型无功功率补偿器是适于提供无功功率的AC功率电容器,其降低有源型无功功率补偿器的容量。 有源型无功补偿器包括功率转换器,直流电容器,高频纹波滤波器和控制器。 混合无功补偿装置可以在预定范围内提供可线性调节的无功功率,并且适于提供具有接近正弦波形的电流。 因此,可以避免由功率谐振引起的交流电源电容的破坏。
    • 79. 发明授权
    • Control method for parallel-connected power converters
    • 并联电源转换器的控制方法
    • US06906501B2
    • 2005-06-14
    • US10434207
    • 2003-05-09
    • Chin-Chang WuHurng-Liang ChouNan-Ying ShenYao-Jen Chang
    • Chin-Chang WuHurng-Liang ChouNan-Ying ShenYao-Jen Chang
    • H02M3/158G05F1/40
    • H02M3/1584
    • A control method for the parallel-connected power converters includes a control circuit comprising a voltage feedback circuit and a current feed-forward circuit. The voltage feedback circuit, consisting of a voltage regulated control circuit and a waveform control circuit, is used to control the power converter's output voltage with constant amplitude and low total harmonic distortion. By adjusting the gain of waveform control circuit, it can regulate the current distribution among the parallel-connected power converters. The current feed-forward circuit separates the power converter's output current into the fundamental component and the harmonic component, and amplifies them by different gain. The amplified fundamental component acts as a fundamental resistor to suppress the circulating current among the parallel-connected power converters, and the amplified harmonic component acts as a harmonic damper for preventing from high frequency oscillation generated by the L-C filter.
    • 并联电力转换器的控制方法包括:电压反馈电路和电流前馈电路的控制电路。 电压反馈电路由电压调节控制电路和波形控制电路组成,用于以恒定幅度和低总谐波失真来控制功率转换器的输出电压。 通过调整波形控制电路的增益,可以调节并联电源转换器之间的电流分布。 电流前馈电路将功率转换器的输出电流分为基波分量和谐波分量,并通过不同的增益进行放大。 放大的基波分量作为基波电阻来抑制并联功率转换器中的循环电流,并且放大的谐波分量作为用于防止由L-C滤波器产生的高频振荡的谐波阻尼器。