摘要：【中文】本发明提供了用于生成超声图像的方法和系统。在方法中，超声图像的生成包括：获得通道数据，所述通道数据定义被成像点的集合；对于每个被成像点：隔离所述通道数据，对所隔离的通道数据执行空间频谱估计，并且选择性地衰减空间频谱估计通道数据，从而生成经滤波的通道数据；并且对所述经滤波的通道数据进行求和，从而形成经滤波的超声图像。在一些示例中，所述方法包括孔径外推。所述孔径外推提高了所述超声图像的横向分辨率。在其他示例中，所述方法包括发射外推。所述发射外推提高了图像的对比度。另外，所述发射外推还提高了帧速率并减少了所述超声图像中的运动伪影。在另外的示例中，所述孔径外推和所述发射外推可以被组合。 【EN】The invention provides a method and a system for generating an ultrasound image. In the method, the generating of the ultrasound image comprises: obtaining channel data defining a set of imaged points; for each imaged point: isolating the channel data, performing spatial spectrum estimation on the isolated channel data, and selectively attenuating the spatial spectrum estimation channel data, thereby generating filtered channel data; and summing the filtered channel data to form a filtered ultrasound image. In some examples, the method includes aperture extrapolation. The aperture extrapolation improves the lateral resolution of the ultrasound image. In other examples, the method includes transmitting extrapolation. The emission extrapolation improves the contrast of the image. In addition, the transmit extrapolation also increases the frame rate and reduces motion artifacts in the ultrasound image. In further examples, the aperture extrapolation and the transmit extrapolation may be combined.

摘要：【中文】本发明提供了用于生成超声图像的方法和系统。在一种方法中，对超声图像的所述生成包括：获得通道数据，所述通道数据定义成像点的集合；对于每个成像点：对所述通道数据进行隔离；对所隔离的通道数据执行谱估计；并且对谱估计通道数据进行选择性地衰减，由此生成滤波后的通道数据；并且对所述滤波后的通道数据求和，由此形成滤波后的超声图像。在一些示例中，所述方法包括孔径外推。所述孔径外推改善所述超声图像的横向分辨率。在其他示例中，所述方法包括发射外推。所述发射外推改善所述图像的对比度。另外，所述发射外推改善帧率并减少所述超声图像中的运动伪影。在另外的示例中，所述孔径外推和所述发射外推可以被组合。 【EN】The invention provides a method and a system for generating an ultrasound image. In one method, the generating of an ultrasound image comprises: obtaining channel data, the channel data defining a set of imaging points; for each imaging point: isolating the channel data; performing spectral estimation on the isolated channel data; and selectively attenuating the spectral estimation channel data, thereby generating filtered channel data; and summing the filtered channel data, thereby forming a filtered ultrasound image. In some examples, the method includes aperture extrapolation. The aperture extrapolation improves the lateral resolution of the ultrasound image. In other examples, the method includes transmitting extrapolation. The emission extrapolation improves the contrast of the image. In addition, the transmit extrapolation improves frame rate and reduces motion artifacts in the ultrasound image. In further examples, the aperture extrapolation and the transmit extrapolation may be combined.

摘要：【中文】公开了用于抑制超声图像中的随机噪声、声学杂波和/或混响杂波的系统和方法。公开了一种自回归移动平均(ARMA)滤波技术，该技术包括生成预测误差滤波器并估计超声通道数据中的噪声。公开了时间‑空间和频率‑空间ARMA滤波技术。公开了一种能够实现ARMA滤波技术的超声成像系统。 【EN】Systems and methods for suppressing random noise, acoustic clutter, and/or reverberation clutter in ultrasound images are disclosed. An autoregressive moving average (ARMA) filtering technique is disclosed that includes generating a prediction error filter and estimating noise in ultrasound channel data. Temporal-spatial and frequency-spatial ARMA filtering techniques are disclosed. An ultrasound imaging system capable of implementing ARMA filtering techniques is disclosed.