公开(公告)号：US06984210B2

公开(公告)日：2006-01-10

申请号：US10323467

申请日：2002-12-18

申请人： David H. Chambers ,  Jeffrey Mast ,  Stephen G. Azevedo ,  Frank Wuebbeling ,  Frank Natterer ,  Neb Duric ,  Peter J. Littrup ,  Earle Holsapple

发明人： David H. Chambers ,  Jeffrey Mast ,  Stephen G. Azevedo ,  Frank Wuebbeling ,  Frank Natterer ,  Neb Duric ,  Peter J. Littrup ,  Earle Holsapple

IPC分类号： A61B8/00

CPC分类号： A61B8/0825 ,  A61B8/13

摘要： A method and apparatus are provided for investigating tissue in which acoustic data are derived from scattering a plurality of pulsed spherical or cylindrical acoustic waves from a plurality of transmission elements through the tissue to a plurality of receiving elements. The acoustic data, which include a mix of reflected and transmitted acoustic waves, are received and digitized, and a representation of a portion of the tissue is generated from the digitized acoustic data.

摘要翻译： 提供了一种用于调查其中导出声学数据的组织的方法和装置，其将多个脉冲的球形或圆柱形声波从多个传输元件通过组织散布到多个接收元件。 包括反射和传播的声波的混合的声学数据被接收和数字化，并且从数字化声学数据生成组织的一部分的表示。

公开(公告)号：US20110146371A1

公开(公告)日：2011-06-23

申请号：US12976462

申请日：2010-12-22

申请人： Olivier Roy ,  Neb Duric ,  Ivana Jovanovic ,  Martin Vetterli

发明人： Olivier Roy ,  Neb Duric ,  Ivana Jovanovic ,  Martin Vetterli

IPC分类号： G01P21/00

CPC分类号： A61B8/0825 ,  A61B8/58

摘要： An iterative method for calibrating a transducer array characterized by calibration parameters, based on time delay measurements between transducer pairs, comprising the steps of: creating a distance data set that includes pairwise distances between estimated positions of transducer; forming a time delay measurement data set that includes time delay measurements between transducer pairs; generating from the time delay measurement data set an estimate of at least one calibration parameter; modifying the time delay measurement data set and the distance data set based on the estimated calibration parameters; denoising the modified distance data set with an iterative algorithm; updating the estimated positions of transducers based on the denoised modified distance data set; and repeating at least a portion of the steps until the difference between the estimated positions of transducer pairs and updated estimated positions of transducers satisfies a stopping criterion.

摘要翻译： 一种迭代方法，用于校准基于校准参数的换能器阵列，其基于换能器对之间的时间延迟测量，包括以下步骤：创建包括换能器的估计位置之间成对距离的距离数据集; 形成包括传感器对之间的时间延迟测量的时间延迟测量数据集; 从所述时间延迟测量数据生成至少一个校准参数的估计; 基于估计的校准参数修改时间延迟测量数据集和距离数据集; 用迭代算法对修改的距离数据集进行去噪; 基于去噪修正距离数据集来更新换能器的估计位置; 并且重复步骤的至少一部分，直到换能器对的估计位置和更新的换能器估计位置之间的差满足停止标准。

公开(公告)号：US08532951B2

公开(公告)日：2013-09-10

申请号：US12976462

申请日：2010-12-22

申请人： Olivier Roy ,  Neb Duric ,  Ivana Jovanovic ,  Martin Vetterli

发明人： Olivier Roy ,  Neb Duric ,  Ivana Jovanovic ,  Martin Vetterli

IPC分类号： G01D18/00 ,  G01D21/00 ,  G01P21/00 ,  G01R35/00 ,  G01B3/30 ,  G01B21/00

CPC分类号： A61B8/0825 ,  A61B8/58

摘要： An iterative method for calibrating a transducer array characterized by calibration parameters, based on time delay measurements between transducer pairs, comprising the steps of: creating a distance data set that includes pairwise distances between estimated positions of transducer; forming a time delay measurement data set that includes time delay measurements between transducer pairs; generating from the time delay measurement data set an estimate of at least one calibration parameter; modifying the time delay measurement data set and the distance data set based on the estimated calibration parameters; denoising the modified distance data set with an iterative algorithm; updating the estimated positions of transducers based on the denoised modified distance data set; and repeating at least a portion of the steps until the difference between the estimated positions of transducer pairs and updated estimated positions of transducers satisfies a stopping criterion.

摘要翻译： 一种迭代方法，用于校准基于校准参数的换能器阵列，其基于换能器对之间的时间延迟测量，包括以下步骤：创建包括换能器的估计位置之间成对距离的距离数据集; 形成包括传感器对之间的时间延迟测量的时间延迟测量数据集; 从所述时间延迟测量数据生成至少一个校准参数的估计; 基于估计的校准参数修改时间延迟测量数据集和距离数据集; 用迭代算法对修改的距离数据集进行去噪; 基于去噪修正距离数据集来更新换能器的估计位置; 并且重复步骤的至少一部分，直到换能器对的估计位置和更新的换能器估计位置之间的差满足停止标准。