公开(公告)号：US20230097283A1

公开(公告)日：2023-03-30

申请号：US17795391

申请日：2021-02-03

Applicant: HOYA CORPORATION

Inventor： Masayuki HAGIWARA

IPC: A61B8/08 ,  A61B8/12 ,  A61B8/00 ,  A61B1/05 ,  G01S7/52

Abstract: An electronic endoscope system includes: an electronic endoscope including, at a distal end portion, an image sensor that captures an image of a living tissue, and an ultrasound probe that applies ultrasonic waves to the living tissue to obtain an echo signal; a captured image processor including an image processing unit that processes an imaging signal output from the image sensor and generates a captured image; and an ultrasonic image processor including an ultrasonic image processing unit that processes the echo signal output from the ultrasound probe and generates an ultrasonic image, a noise detection unit that detects a periodic noise component included in the echo signal and generated at a level equal to or higher than a preset threshold level, and a noise suppression unit that performs processing of suppressing the detected noise component.

公开(公告)号：US20240324987A1

公开(公告)日：2024-10-03

申请号：US18293092

申请日：2022-09-21

Applicant: HOYA CORPORATION

Inventor： Masayuki HAGIWARA

IPC: A61B8/12 ,  A61B8/00 ,  A61B8/08 ,  A61B8/14

CPC classification number: A61B8/12 ,  A61B8/14 ,  A61B8/4444 ,  A61B8/5207 ,  A61B8/5269

Abstract: An electronic endoscope system that acquires an ultrasonic image, and the electronic endoscope system includes: an electronic endoscope including, an image sensor that captures an image of a biological tissue, and an ultrasonic probe that applies ultrasonic waves to the biological tissue to obtain an echo signal; a captured image processor including an image processing unit that processes an imaging signal output from the image sensor and generates a captured image; and an ultrasonic image processor including an ultrasonic image processing unit that processes the echo signal output from the ultrasonic probe and generates an ultrasonic image, a frequency band detection unit that detects a frequency band of a noise component included in the echo signal and equal to or higher than a preset threshold level, and a filter processing unit that performs filter processing on the echo signal such that a signal in the detected frequency band is attenuated.

公开(公告)号：US20230080349A1

公开(公告)日：2023-03-16

申请号：US17801622

申请日：2021-07-19

Applicant: HOYA CORPORATION

Inventor： Masayuki HAGIWARA

IPC: A61B8/08 ,  A61B8/12 ,  A61B8/00 ,  A61B8/14

Abstract: An electronic endoscope system according to a first embodiment includes an electronic endoscope, a captured image processor, and an ultrasonic image processor. The electronic endoscope has, at a distal tip thereof, an image sensor, and an ultrasonic probe that repeatedly applies ultrasonic waves to sequentially obtain echo signals. The ultrasonic image processor has a noise detection unit that detects a noise component which is contained in a first echo signal among the echo signals and which is periodically generated at or above a preset threshold level, and a noise inhibition unit that generates a noise inhibition component which, by being added to a second echo signal outputted after the first echo signal, inhibits generation of the noise component in the second echo signal, and that adds the noise inhibition component to the second echo signal.

公开(公告)号：US20160035064A1

公开(公告)日：2016-02-04

申请号：US14807087

申请日：2015-07-23

Applicant: HOYA CORPORATION

Inventor： Masayuki HAGIWARA ,  Katsuya TANNAI

IPC: G06T3/40 ,  A61B1/05 ,  H04N5/372 ,  H04N9/04 ,  H04N5/225 ,  H04N5/3728

CPC classification number: G06T3/4007 ,  A61B1/00009 ,  A61B1/045 ,  A61B1/05 ,  H04N5/2256 ,  H04N5/23296 ,  H04N5/2628 ,  H04N5/341 ,  H04N5/37213 ,  H04N5/3728 ,  H04N7/012 ,  H04N9/045 ,  H04N19/423 ,  H04N2005/2255

Abstract: An electronic endoscope system has an image sensor driver configured to read one line's worth of image-pixel signals in order; at least four line memories configured to store one line's worth of image-pixel signals, respectively; and an interpolation processor that interpolates image-pixel signals of interpolated scanning lines to generate an enlarged image. The interpolation processor generates one line's worth of interpolated image-pixel signals based on image-pixel signals that are stored in the line memories. The image sensor driver reading one line's worth of image-pixel signals intermittently, and the interpolation processor suspends a writing of image-pixel signals that are stored in the line memories in accordance to a suspension of the outputting of the one line's worth of image-pixel signals from the image sensor.

Abstract translation: 电子内窥镜系统具有被配置为依次读取一行的图像像素信号的图像传感器驱动器; 至少四行存储器，分别存储一行的图像像素信号; 以及内插处理器，其内插内插扫描线的图像像素信号以生成放大图像。 内插处理器基于存储在行存储器中的图像像素信号产生一行的内插图像像素信号。 图像传感器驱动器间歇地读取一行的图像像素信号，并且插值处理器根据暂停输出一行的图像像素信号而暂停存储在行存储器中的图像像素信号的写入， 来自图像传感器的像素信号。