公开(公告)号：US20170287129A1

公开(公告)日：2017-10-05

申请号：US15473056

申请日：2017-03-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Ryoki WATANABE

IPC: G06T7/00 ,  G06T11/60 ,  A61B8/14 ,  A61B8/08 ,  A61B8/00

CPC classification number: G06T7/0012 ,  A61B8/14 ,  A61B8/4218 ,  A61B8/4444 ,  A61B8/461 ,  A61B8/467 ,  A61B8/5207 ,  G01S7/52036 ,  G06T5/001 ,  G06T2207/10132

Abstract: An image generation apparatus includes an arithmetic processing unit that generates an ultrasonic image based on a received signal obtained by receiving a reflected wave from a subject of an ultrasonic wave incident on the subject. The arithmetic processing unit calculates an attenuation feature value at each position in an incidence direction of the ultrasonic wave based on the received signal, performs signal processing on the attenuation feature value at each position in the incidence direction, and generates an attenuation feature image using the attenuation feature value subjected to the signal processing.

公开(公告)号：US20170086796A1

公开(公告)日：2017-03-30

申请号：US15278710

申请日：2016-09-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Ryoki WATANABE

IPC: A61B8/08 ,  A61B8/00 ,  A61B5/00 ,  A61B8/14 ,  G01S15/89 ,  G01S7/52

CPC classification number: A61B8/5269 ,  A61B5/7257 ,  A61B8/14 ,  A61B8/4444 ,  A61B8/5207 ,  G01S7/52026 ,  G01S15/8977 ,  G01S15/8988 ,  G06T2207/10132

Abstract: An ultrasonic measurement apparatus extracts, from a reception signal, a plurality of partial reception signals according to overlap periods that are set by shifting the time so as to overlap partially. Then, scattering attenuation correction using a scattering attenuation correction value is performed for a frequency domain signal obtained by performing a Fourier transform of each of the plurality of partial reception signals, and an inverse Fourier transform of a corrected frequency correction signal is performed. Then, partial correction signals corresponding to the respective partial reception signals are obtained by performing an inverse Fourier transform. Then, a signal obtained by combining the partial correction signals is set as a reception correction signal after correcting the reception signal. The scattering attenuation correction value is calculated from the signal strength of incident ultrasonic waves and a sum value of the signal strength of the reception signal at each time.

公开(公告)号：US20150073277A1

公开(公告)日：2015-03-12

申请号：US14470397

申请日：2014-08-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Masaki HAYASHI ,  Ryoki WATANABE

IPC: A61B8/08 ,  A61B8/00 ,  A61B8/14

CPC classification number: A61B8/5207 ,  A61B8/145 ,  A61B8/4427 ,  A61B8/4494 ,  A61B8/461 ,  A61B8/462 ,  A61B8/5269 ,  B06B1/0603 ,  G01S7/52038 ,  G01S7/52047 ,  G01S7/52085 ,  G01S15/8915 ,  G01S15/8925 ,  G01S15/8927 ,  G10K11/346

Abstract: An ultrasonic measurement apparatus includes a reception processing unit, a harmonic processing unit, a signal processing unit and an image generation unit. The reception processing unit is configured to receive, as a received signal, an ultrasonic echo corresponding to an ultrasonic wave transmitted toward a subject. The harmonic processing unit is configured to extract a harmonic component of the ultrasonic echo from the received signal. The signal processing unit is configured to add a weighting to the harmonic component by using a weight that varies depending on a value of the harmonic component. The image generation unit is configured to generate an image based on a signal to which the weighting has been added.

Abstract translation: 超声波测量装置包括接收处理单元，谐波处理单元，信号处理单元和图像生成单元。 接收处理单元被配置为接收与向被摄体发送的超声波相对应的超声回波作为接收信号。 谐波处理单元被配置为从接收信号中提取超声回波的谐波分量。 信号处理单元被配置为通过使用根据谐波分量的值而变化的权重来向谐波分量加权。 图像生成单元被配置为基于已经添加了加权的信号来生成图像。