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    System and method for contour tracking in cardiac phase contrast flow MR images
    1.
    发明授权
    System and method for contour tracking in cardiac phase contrast flow MR images 有权
    心脏相位对比流MR图像中轮廓跟踪的系统和方法

    公开(公告)号：US08170321B2

    公开(公告)日：2012-05-01

    申请号：US12431299

    申请日：2009-04-28

    申请人： Ying Sun ,  Gareth Funka-Lea ,  Ravi Kumar ,  Jens Gühring

    发明人： Ying Sun ,  Gareth Funka-Lea ,  Ravi Kumar ,  Jens Gühring

    IPC分类号： G06K9/78

    CPC分类号： G06T7/251 ,  G06T7/12 ,  G06T7/246 ,  G06T2207/10096 ,  G06T2207/30048 ,  G06T2207/30104

    摘要： A method for tracking a contour in cardiac phase contrast flow magnetic resonance (MR) images includes estimating a global translation of a contour in a reference image in a time sequence of cardiac phase contrast flow MR images to a contour in a current image in the time sequence of images by finding a 2-dimensional translation vector that maximizes a similarity function of the contour in the reference image and the current image calculated over a bounding rectangle containing the contour in the reference image, estimating an affine transformation of the contour in the reference image to the contour in the current image, and performing a constrained local deformation of the contour in the current image.

    摘要翻译： 用于跟踪心脏相位对比流磁共振（MR）图像中的轮廓的方法包括：将心脏相位对比流MR图像的时间序列中的参考图像中的轮廓的全局平移估计为当前图像中的轮廓 通过找到使参考图像中的轮廓的相似度函数最大化的二维平移向量和在包含参考图像中的轮廓的包围矩形上计算的当前图像的图像序列，估计参考图中轮廓的仿射变换 图像到当前图像中的轮廓，并且在当前图像中执行轮廓的约束局部变形。

    SYSTEM AND METHOD FOR CONTOUR TRACKING IN CARDIAC PHASE CONTRAST FLOW MR IMAGES
    2.
    发明申请
    SYSTEM AND METHOD FOR CONTOUR TRACKING IN CARDIAC PHASE CONTRAST FLOW MR IMAGES 有权
    心脏跟踪流程MR图像中的轮廓跟踪的系统和方法

    公开(公告)号：US20090324012A1

    公开(公告)日：2009-12-31

    申请号：US12431299

    申请日：2009-04-28

    申请人： Ying Sun ,  Gareth Funka-Lea ,  Ravi Kumar ,  Jens Gühring

    发明人： Ying Sun ,  Gareth Funka-Lea ,  Ravi Kumar ,  Jens Gühring

    IPC分类号： G06T7/00 ,  G06T7/20

    CPC分类号： G06T7/251 ,  G06T7/12 ,  G06T7/246 ,  G06T2207/10096 ,  G06T2207/30048 ,  G06T2207/30104

    摘要： A method for tracking a contour in cardiac phase contrast flow magnetic resonance (MR) images includes estimating a global translation of a contour in a reference image in a time sequence of cardiac phase contrast flow MR images to a contour in a current image in the time sequence of images by finding a 2-dimensional translation vector that maximizes a similarity function of the contour in the reference image and the current image calculated over a bounding rectangle containing the contour in the reference image, estimating an affine transformation of the contour in the reference image to the contour in the current image, and performing a constrained local deformation of the contour in the current image.

    摘要翻译： 用于跟踪心脏相位对比流磁共振（MR）图像中的轮廓的方法包括：将心脏相位对比流MR图像的时间序列中的参考图像中的轮廓的全局平移估计为当前图像中的轮廓 通过找到使参考图像中的轮廓的相似度函数最大化的二维平移向量和在包含参考图像中的轮廓的包围矩形上计算的当前图像的图像序列，估计参考图中轮廓的仿射变换 图像到当前图像中的轮廓，并且在当前图像中执行轮廓的约束局部变形。

    Uplink and bi-directional traffic classification for wireless communication
    3.
    发明授权
    Uplink and bi-directional traffic classification for wireless communication 有权
    无线通信的上行链路和双向流分类

    公开(公告)号：US08634399B2

    公开(公告)日：2014-01-21

    申请号：US11504413

    申请日：2006-08-11

    申请人： Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

    发明人： Khac Thai ,  John Y. Chao ,  Qiang Fu ,  Ravi Kumar

    IPC分类号： H04J3/24 ,  H04J3/06 ,  H04W28/26 ,  H04L12/56 ,  H04L5/00

    CPC分类号： H04J3/0685 ,  H04L5/0064 ,  H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04L47/805 ,  H04W28/26

    摘要： Techniques for performing traffic classification for uplink and bi-directional traffic streams are described. A station receives packets for transmission on the uplink to an access point. The station identifies packets for each uplink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The station sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream. The access point receives packets for transmission on the downlink to at least one station. The access point identifies packets for each downlink traffic stream and packets for each bi-directional traffic stream based on at least one classification parameter for each traffic stream. The access point sends packets for each traffic stream in accordance with at least one QoS parameter for the traffic stream.

    摘要翻译： 描述了用于执行上行链路和双向业务流的流分类的技术。 站点接收分组，以在上行链路上接入点进行传输。 该站基于每个业务流的至少一个分类参数来识别每个上行链路业务流的分组和每个双向业务流的分组。 工作站根据业务流的至少一个QoS参数为每个业务流发送数据包。 接入点接收用于在下行链路上传输到至少一个站的分组。 接入点基于每个业务流的至少一个分类参数来识别每个下行链路业务流的分组和每个双向业务流的分组。 接入点根据用于业务流的至少一个QoS参数为每个业务流发送分组。

    Cable management system
    6.
    发明授权
    Cable management system 有权
    电缆管理系统

    公开(公告)号：US07751206B2

    公开(公告)日：2010-07-06

    申请号：US11696246

    申请日：2007-04-04

    申请人： Michael Kosacek ,  Ravi Kumar

    发明人： Michael Kosacek ,  Ravi Kumar

    IPC分类号： H02B1/21

    CPC分类号： H02G3/30

    摘要： A cable management system includes a cable base comprising a first end, a second end, and a resilient member that is operable to allow a rest distance between the first end and the second end to be changed. A plurality of cables are partially housed in the cable base, wherein each cable includes a first section that extends from the first end of the cable base and a second section that extends from the second end of the cable base.

    摘要翻译： 电缆管理系统包括电缆基座，其包括第一端，第二端和可操作以允许第一端和第二端之间的静止距离改变的弹性构件。 多个电缆部分地容纳在电缆基座中，其中每个电缆包括从电缆基座的第一端延伸的第一部分和从电缆基座的第二端延伸的第二部分。

    High speed elastic buffer with clock jitter tolerant design
    8.
    发明授权
    High speed elastic buffer with clock jitter tolerant design 有权
    具有时钟抖动容限设计的高速弹性缓冲器

    公开(公告)号：US07366207B1

    公开(公告)日：2008-04-29

    申请号：US10368251

    申请日：2003-02-18

    申请人： Rohit Vaishnav ,  Ravi Kumar

    发明人： Rohit Vaishnav ,  Ravi Kumar

    IPC分类号： H04J3/06

    CPC分类号： H04J3/062

    摘要： A receiver for high-speed indirect synchronous digital data transmission includes an elastic buffer receiving an incoming data stream containing embedded timing information preceding a data sequence, generating a recovered clock from the timing information, initially synchronizing the frequency of a local clock to the recovered clock, and accommodating subsequent drift between the recovered and local clocks across the duration of the data sequence while tolerating clock jitter. Received data is clocked into a FIFO buffer within the elastic buffer based on the recovered clock and read out based upon the local clock, with the buffer expanding or contracting by adjustment of an index to accommodate skew of greater than one clock period. Expansion or contraction of the FIFO buffer is disabled during periods when clock jitter is likely, such as periods immediately following an index change.

    摘要翻译： 用于高速间接同步数字数据传输的接收机包括弹性缓冲器，接收包含在数据序列之前的嵌入定时信息的输入数据流，从定时信息产生恢复的时钟，最初将本地时钟的频率同步到恢复的时钟 并且在数据序列的持续时间内容纳恢复和本地时钟之间的随后漂移，同时容忍时钟抖动。 接收到的数据基于恢复的时钟被计入弹性缓冲器内的FIFO缓冲器中，并且基于本地时钟读出，缓冲器通过调整索引来扩展或收缩以适应大于一个时钟周期的偏移。 在时钟抖动很可能的时段（例如紧随着索引改变之后的周期），FIFO缓冲器的扩展或缩小被禁用。