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    System and Method for Coronary Digital Subtraction Angiography
    4.
    发明申请
    System and Method for Coronary Digital Subtraction Angiography 有权
    冠状动脉数字减影血管造影术的系统与方法

    公开(公告)号：US20110033102A1

    公开(公告)日：2011-02-10

    申请号：US12774146

    申请日：2010-05-05

    申请人： Ying Zhu ,  Simone Prummer ,  Peng Wang ,  Terrence Chen ,  Martin Ostermeier ,  Dorin Comaniciu

    发明人： Ying Zhu ,  Simone Prummer ,  Peng Wang ,  Terrence Chen ,  Martin Ostermeier ,  Dorin Comaniciu

    IPC分类号： G06K9/00

    CPC分类号： G06T7/0016 ,  G06T2207/10121 ,  G06T2207/20224 ,  G06T2207/30101

    摘要： A method and system for extracting coronary vessels fluoroscopic image sequences using coronary digital subtraction angiography (DSA) are disclosed. A set of mask images of a coronary region is received, and a sequence of contrast images for the coronary region is received. For each contrast image, a motion estimate is calculated between each of the mask images and a background region of the contrast image and a covariance is calculated for each motion estimate. Multiple background layer predictions are generated by generating a background layer prediction for each mask image based on the calculated motion estimate and covariance. The multiple background layer estimates are combined using statistical fusion to generate a final estimated background layer. The final estimated background layer is subtracted from the contrast image to extract a coronary vessel layer for the contrast image.

    摘要翻译： 公开了使用冠状动脉数字减影血管造影（DSA）提取冠脉血管荧光镜图像序列的方法和系统。 接收冠状动脉区域的一组掩模图像，并且接收冠状动脉区域的对比度图像序列。 对于每个对比度图像，在每个掩模图像和对比度图像的背景区域之间计算运动估计，并且针对每个运动估计计算协方差。 通过基于计算的运动估计和协方差为每个掩模图像生成背景层预测来生成多个背景层预测。 使用统计融合来组合多个背景层估计以产生最终估计的背景层。 从对比度图像中减去最终估计的背景层，以提取对比度图像的冠状血管层。

    System and method for vehicle detection and tracking
    5.
    发明授权
    System and method for vehicle detection and tracking 有权
    车辆检测和跟踪的系统和方法

    公开(公告)号：US07764808B2

    公开(公告)日：2010-07-27

    申请号：US10805946

    申请日：2004-03-22

    申请人： Ying Zhu ,  Dorin Comaniciu ,  Martin Pellkofer ,  Thorsten Köhler

    发明人： Ying Zhu ,  Dorin Comaniciu ,  Martin Pellkofer ,  Thorsten Köhler

    IPC分类号： G06K9/00

    CPC分类号： G06K9/3241 ,  G06T7/20

    摘要： A system and method for detecting and tracking an object is disclosed. A camera captures a video sequence comprised of a plurality of image frames. A processor receives the video sequence and analyzes each image frame to determine if an object is detected. The processor applies one or more classifiers to an object in each image frame and computes a confidence score based on the application of the one or more classifiers to the object. A database stores the one or more classifiers and vehicle training samples. A display displays the video sequence.

    摘要翻译： 公开了一种用于检测和跟踪对象的系统和方法。 相机拍摄由多个图像帧组成的视频序列。 处理器接收视频序列并分析每个图像帧以确定是否检测到对象。 处理器将一个或多个分类器应用于每个图像帧中的对象，并基于对该对象的一个​​或多个分类器的应用来计算置信度分数。 数据库存储一个或多个分类器和车辆训练样本。 显示器显示视频序列。

    Voltage programming switch for one-time-programmable (OTP) memories
    7.
    发明授权
    Voltage programming switch for one-time-programmable (OTP) memories 有权
    用于一次可编程（OTP）存储器的电压编程开关

    公开(公告)号：US07626845B2

    公开(公告)日：2009-12-01

    申请号：US11610284

    申请日：2006-12-13

    申请人： Clinton H. Holder, Jr. ,  Kang W. Lee ,  Joseph E. Simko ,  Yehuda Smooha ,  Ying Zhu

    发明人： Clinton H. Holder, Jr. ,  Kang W. Lee ,  Joseph E. Simko ,  Yehuda Smooha ,  Ying Zhu

    IPC分类号： G11C17/00

    CPC分类号： G11C17/16 ,  G11C17/18

    摘要： In one embodiment, the invention is an integrated circuit (IC) including an OTP memory and conditioning circuitry. The IC receives an externally-generated DC programming voltage signal that the conditioning circuitry transforms into a programming pulse signal for programming the OTP memory. The conditioning circuitry includes: (i) reset protection circuitry for holding the programming pulse signal low if the IC is powering up, (ii) an overvoltage protection circuit for substantially preventing the programming pulse voltage from exceeding predefined boundaries, and (iii) a conversion switch for controlling the programming pulse voltage. The programming pulse voltage is (i) substantially equivalent to the externally-generated DC voltage if an enable signal is on, and (ii) substantially equivalent to a reference voltage if the enable signal is off.

    摘要翻译： 在一个实施例中，本发明是包括OTP存储器和调节电路的集成电路（IC）。 IC接收外部产生的直流编程电压信号，调理电路变换为用于编程OTP存储器的编程脉冲信号。 调节电路包括：（i）复位保护电路，用于在IC上电时保持编程脉冲信号为低电平，（ii）过压保护电路，用于基本上防止编程脉冲电压超出预定义的边界，以及（iii）转换 用于控制编程脉冲电压的开关。 如果使能信号为开，编程脉冲电压为（i）基本上等于外部产生的直流电压，以及（ii）如果使能信号关闭，则基本上等于参考电压。

    System and method for detecting features from images of vehicles
    8.
    发明授权
    System and method for detecting features from images of vehicles 失效
    用于从车辆图像检测特征的系统和方法

    公开(公告)号：US07620208B2

    公开(公告)日：2009-11-17

    申请号：US11313599

    申请日：2005-12-21

    申请人： Ying Zhu ,  Binglong Xie ,  Visvanathan Ramesh ,  Martin Pellkofer ,  Thorsten Köhler

    发明人： Ying Zhu ,  Binglong Xie ,  Visvanathan Ramesh ,  Martin Pellkofer ,  Thorsten Köhler

    IPC分类号： G06K9/00 ,  H04N7/18

    CPC分类号： G06K9/4609 ,  G06K2209/23

    摘要： A method of detecting a feature of a vehicle in an image of a vehicle includes providing a digitized image of a vehicle, providing a first filter mask over a first subdomain of the image, where the filter mask is placed to detect a feature in the image, calculating a function of a gradient of the image inside the first masked subdomain, and detecting the presence or absence of a vehicle feature within the first masked subdomain based on the value of the gradient function.

    摘要翻译： 一种在车辆图像中检测车辆的特征的方法包括提供车辆的数字化图像，在图像的第一子域上提供第一滤波器掩模，其中放置滤波器掩码以检测图像中的特征 计算第一掩蔽子域内的图像的梯度的函数，以及基于梯度函数的值来检测第一掩蔽子域内的车辆特征的存在或不存在。