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    • 2. 发明申请
    • METHOD AND APPARATUS FOR GENERATING AN ULTRASOUND SCATTERER REPRESENTATION
    • 用于生成超声波散热器表示的方法和装置
    • WO2017017051A1
    • 2017-02-02
    • PCT/EP2016/067625
    • 2016-07-25
    • EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH (ETHZ)
    • GOKSEL, OrcunMATTAUSCH, Olivier
    • A61B8/08A61B8/00G01S15/89
    • G09B23/286A61B8/00A61B8/52A61B8/587G01S15/8977G06T5/003G06T7/0012G06T11/003G06T2207/10132
    • Realistic ultrasound imaging simulation requires modeling of scatterers corresponding to different imaging speckle appearances. A scatterer generator acquires a plurality of ultrasound signal samples, each corresponding to a different ultrasound capture and reconstructs a scatterer representation from the ultrasound signal samples and associated Point Spread Functions. Point Spread Functions (PSFs) may be estimated from multiple image acquisitions at the same reference position resulting from beam-steering. Reconstructed scatterers may then directly be used in ultrasound simulation or an additional step of modeling the scatterers may be applied. Statistical distribution parametrization or texture synthesis may be used to model the scatterers. Different scatterer models may be used for different homogeneous regions. The reconstructed scatterers and/or the scatterer models may be registered into a library of scatterers by the scatterer generator.
    • 现实的超声成像模拟需要对不同成像斑点出现的散射体进行建模。 散射体发生器获取多个超声信号样本,每个超声信号采样对应于不同的超声波捕获,并从超声信号样本和相关联的点扩展函数重建散射体表示。 点扩散函数(PSF)可以通过从光束转向导致的相同参考位置处的多个图像采集来估计。 然后可以将重建的散射体直接用于超声模拟,或者可以应用对散射体进行建模的附加步骤。 统计分布参数化或纹理合成可用于对散射体进行建模。 不同的散射体模型可以用于不同的均匀区域。 重建的散射体和/或散射体模型可以由散射体发生器注册到散射体的库中。
    • 10. 发明申请
    • ULTRASOUND IMAGING APPARATUS WITH ADAPTIVE BEAMFORMER AND ULTRASOUND IMAGING METHOD WITH ADAPTIVE BEAMFORMING
    • 具有自适应光束的超声波成像装置和具有自适应光束的超声成像方法
    • WO2012035723A1
    • 2012-03-22
    • PCT/JP2011/005039
    • 2011-09-08
    • CANON KABUSHIKI KAISHANAGAE, Kenichi
    • NAGAE, Kenichi
    • G01S7/52G01S15/89G10K11/34G10K11/35
    • G01S7/52047A61B8/4444G01S15/8915G01S15/8945G01S15/8977G01S15/8993
    • An ultrasound imaging apparatus of the present invention includes a probe (302) which has a plurality of elements (301) arranged in an array, which receive elastic waves propagating within a subject and converts the received elastic waves to received signals, a first signal processing unit (10, 410, 810) which uses the received signals output by the elements to calculate first output signals corresponding to the elastic waves from a target position, a second signal processing unit (20, 420, 820) which uses the first output signals of the target position to calculate second output signals corresponding to elastic waves from the target position, and an image processing unit (412) which uses the second output signals to generate image data for display on an image display device (413). At least one of the first signal processing unit (10, 410, 810) and the second signal processing unit (20, 420, 820) uses adaptive signal processing to calculate the first output signals or the second output signals. An ultrasound imaging method corresponding to the ultrasound imaging apparatus is also disclosed.
    • 本发明的超声波成像装置包括具有排列成阵列的多个元件(301)的探针(302),其接收在被检体内传播的弹性波,并将接收到的弹性波转换为接收信号,第一信号处理 单元(10,410,810),其使用由所述元件输出的接收信号来计算对应于来自目标位置的弹性波的第一输出信号;第二信号处理单元(20,420,820),其使用所述第一输出信号 以计算对应于来自目标位置的弹性波的第二输出信号的图像处理单元(412),以及使用所述第二输出信号生成图像数据以在图像显示装置(413)上显示的图像处理单元(412)。 第一信号处理单元(10,410,810)和第二信号处理单元(20,420,820)中的至少一个使用自适应信号处理来计算第一输出信号或第二输出信号。 还公开了对应于超声成像装置的超声成像方法。