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    Method and device for color blood flow frame averaging
    3.
    发明授权
    Method and device for color blood flow frame averaging 有权
    彩色血流框架平均方法和装置

    公开(公告)号：US07929744B2

    公开(公告)日：2011-04-19

    申请号：US11927299

    申请日：2007-10-29

    申请人： Yongqiang Dong

    发明人： Yongqiang Dong

    IPC分类号： G06K9/00 ,  A61B8/00

    CPC分类号： G01S15/8979 ,  A61B8/06 ,  A61B8/13 ,  G01S7/52071 ,  G01S15/584 ,  G06T5/50 ,  G06T2207/10132 ,  G06T2207/20216 ,  G06T2207/30104

    摘要： The present invention provides a method and device for color blood flow frame averaging. In the present invention, whether aliasing occurs to an output blood flow velocity of a previous frame is first determined. If aliasing does occur to the output blood flow velocity of the previous frame, the output blood flow velocity of the previous frame will be moved, and the moved output blood flow velocity of the previous frame is then subjected to the frame averaging. The present invention can improve and eliminate the “shadow” in the output blood flow velocity of the current frame due to velocity aliasing of the previous frame existing in the prior color frame averaging processing, such that the blood flow velocity appears more natural and has a more reasonable distribution.

    摘要翻译： 本发明提供了一种用于彩色血流帧平均的方法和装置。 在本发明中，首先确定是否出现先前帧的输出血流速度的混叠。 如果先前帧的输出血流速度确实发生混叠，则前一帧的输出血流速度将被移动，然后对先前帧的移动输出血流速度进行帧平均。 本发明可以改善和消除由于现有的彩色帧平均处理中存在的先前帧的速度混叠而导致的当前帧的输出血流速度中的“阴影”，使得血流速度看起来更自然，并具有 更合理的分配。

    Method and apparatus for eliminating abnormal blood flow velocities in a color flow image
    6.
    发明申请
    Method and apparatus for eliminating abnormal blood flow velocities in a color flow image 有权
    消除彩色血流图像异常血流速度的方法和装置

    公开(公告)号：US20070083112A1

    公开(公告)日：2007-04-12

    申请号：US11317954

    申请日：2005-12-22

    申请人： Yongqiang Dong

    发明人： Yongqiang Dong

    IPC分类号： A61B8/00

    CPC分类号： A61B8/06

    摘要： A method for eliminating abnormal blood flow velocities in an ultrasonic imaging system is provided in present invention. The method comprises: receiving signals of blood flow; pre-processing the received signals to generate velocity signs in real time; obtaining a plurality of the velocity signs in a predefined spatial and temporal order, and performing weighted smoothing on the plurality of the velocity signs; determining the direction of blood flow at the pixel to be confirmed according to result of the weighted smoothing. A module for performing above method and a color flow imaging system with such a module are also provided in present invention. The method and apparatus provided by present invention can judge the practical direction of blood flow intelligently by performing spatial-temporal smoothing only on the signs of blood flow velocities, so that the estimation error caused by the system noise,clutter residue, speckle effect and etc. can be corrected.

    摘要翻译： 本发明提供一种消除超声成像系统异常血流速度的方法。 该方法包括：接收血流信号; 对接收到的信号进行预处理，实时生成速度信号; 以预定的空间和时间顺序获得多个速度符号，并对所述多个速度符号执行加权平滑; 根据加权平滑的结果确定待确定的像素处的血流方向。 本发明还提供了一种用于执行上述方法的模块和具有这种模块的彩色流成像系统。 本发明提供的方法和装置可以通过仅在血流速度的符号上进行空间 - 时间平滑来智能地判断血流的实际方向，从而使得由系统噪声，杂波残留，斑点效应等引起的估计误差 可以纠正。

    Ultrasound imaging method and appartus for adaptively suppressing tissue flickering
    8.
    发明授权
    Ultrasound imaging method and appartus for adaptively suppressing tissue flickering 有权
    超声成像方法和适应性抑制组织闪烁的方法

    公开(公告)号：US07933439B2

    公开(公告)日：2011-04-26

    申请号：US12334235

    申请日：2008-12-12

    申请人： Yongqiang Dong

    发明人： Yongqiang Dong

    IPC分类号： G06K9/00 ,  A61B8/00

    CPC分类号： A61B8/06 ,  A61B8/13 ,  A61B8/461 ,  G06T5/002 ,  G06T2207/10132 ,  G06T2207/20012 ,  G06T2207/30104

    摘要： The present disclosure provides an ultrasound imaging method and apparatus for adaptively suppressing tissue flickering. The method includes transmitting ultrasound pulses to an object to be detected and receiving ultrasound echo signals from the object to be detected; processing the ultrasound echo signals to obtain anatomical image data; demodulating the ultrasound echo signals to obtain demodulated signals; processing the demodulated signals to obtain blood flow image data; and displaying either anatomical image data or blood flow image data based on fusing rules, wherein a first fusing rule is used for a portion of the object to be detected in which tissue flickering exists, and a second fusing rule, which is different from the first fusing rule, is used for a portion of the object to be detected in which no tissue flickering exists.

    摘要翻译： 本公开提供了一种用于自适应地抑制组织闪烁的超声成像方法和装置。 该方法包括：将超声波脉冲发送到待检测对象，并从被检测物体接收超声波回波信号; 处理超声回波信号以获得解剖图像数据; 解调超声回波信号以获得解调信号; 处理解调信号以获得血流图像数据; 并且基于融合规则显示解剖图像数据或血流图像数据，其中对于存在组织闪烁的待检测对象的一部分使用第一融合规则，以及与第一融合规则不同的第二融合规则 熔化规则用于其中不存在组织闪烁的待检测对象的一部分。