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1. 发明公开

EP2756805A4 ULTRASOUND IMAGING APPARATUS 有权
标题翻译： ULTRASCHALLBILDGEBUNGSVORRICHTUNG
公开(公告)号：EP2756805A4
公开(公告)日：2015-05-20
申请号：EP12832207
申请日：2012-08-07
申请人： HITACHI MEDICAL CORP
发明人： IKEDA TEIICHIRO , AZUMA TAKASHI , MASUZAWA HIROSHI
IPC分类号： A61B8/00 , A61B8/08 , G01S7/52 , G01S15/89 , G10K11/34
CPC分类号： G06K9/6202 , A61B8/4405 , A61B8/461 , A61B8/467 , A61B8/5207 , G01S7/52047 , G01S15/8915 , G01S15/8927 , G06T7/0012 , G10K11/346 , H04N5/232
摘要： A weight value used for a beamforming process performed on received signals in an ultrasound imaging apparatus is obtained with a small amount of computations and with a high degree of precision, even when a method of adaptive signal processing is employed. Multiple elements 401 receive ultrasound signals from a test subject, and the similarity operator 404 obtains the similarity between the received signals x(n). By using the similarity C(n) between the received signals obtained by the similarity operator 404, the adaptive weight operator 407 computes the adaptive weight w(n) in association with the similarity. The beamforming operator 408 uses the adaptive weight w(n) and the received signal x(n) to generate a beamforming output. The imaging processor 108 uses the beamforming output to generate image data. By way of example, the similarity operator 404 performs computations of the similarity in the time direction.
摘要翻译：即使采用自适应信号处理的方法，也可以用少量的计算和高精度地获得用于对超声波成像装置中的接收信号进行的波束形成处理的加权值。多个元件401从测试对象接收超声信号，并且相似度运算符404获得接收信号x（n）之间的相似度。通过使用由相似度运算符404获得的接收信号之间的相似度C（n），自适应加权运算符407与相似度相关联地计算自适应权重w（n）。波束形成算子408使用自适应权重w（n）和接收信号x（n）来生成波束成形输出。成像处理器108使用波束成形输出来生成图像数据。作为示例，相似度运算符404执行时间方向上的相似度的计算。

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