公开(公告)号：US20140012112A1

公开(公告)日：2014-01-09

申请号：US13934419

申请日：2013-07-03

Applicant: FUJIFILM Corporation

Inventor： Toshihiko KAKU ,  Jin MURAYAMA

IPC: A61B5/1455

CPC classification number: A61B5/14552 ,  A61B1/00096 ,  A61B1/043 ,  A61B1/045 ,  A61B1/051 ,  A61B1/0638 ,  A61B1/0646 ,  A61B5/0084

Abstract: An electronic endoscope has normal and high-sensitivity image sensors. In a special mode for imaging an oxygen saturation level of blood, one of the normal and high-sensitivity image sensors is selected in accordance with a reflected light amount of special illumination light. When the normal image sensor is selected, the normal image sensor captures an image under irradiation with the special illumination light and outputs a second normal-sensor image. When an average pixel value of the second normal-sensor image is less than a first sensor selection threshold value, the use of the high-sensitivity image sensor is started. When the high-sensitivity image sensor is selected, the high-sensitivity image sensor captures an image under irradiation with the special illumination light and outputs a high-sensitivity-sensor image. When the average pixel value of the high-sensitivity-sensor image is more than a second sensor selection threshold value, the use of the high-sensitivity image sensor is stopped.

Abstract translation: 电子内窥镜具有正常和高灵敏度的图像传感器。 在用于成像血氧饱和度水平的特殊模式中，根据特殊照明光的反射光量来选择正常和高灵敏度图像传感器之一。 当选择正常图像传感器时，正常图像传感器利用特殊照明光照射拍摄图像并输出第二正常传感器图像。 当第二正常传感器图像的平均像素值小于第一传感器选择阈值时，开始使用高灵敏度图像传感器。 当选择高灵敏度图像传感器时，高灵敏度图像传感器利用特殊照明光照射拍摄图像并输出高灵敏度传感器图像。 当高灵敏度传感器图像的平均像素值大于第二传感器选择阈值时，停止使用高灵敏度图像传感器。

公开(公告)号：US20140228638A1

公开(公告)日：2014-08-14

申请号：US14258534

申请日：2014-04-22

Applicant: FUJIFILM CORPORATION

Inventor： Tsuyoshi ASHIDA ,  Jin MURAYAMA ,  Takayuki NAKAMURA ,  Hidetoshi HIRATA ,  Kazuyoshi HARA ,  Shinichi YAMAKAWA ,  Takayuki IIDA

IPC: A61B1/00 ,  H04N5/361 ,  H04N5/374 ,  A61B1/06

CPC classification number: A61B1/00009 ,  A61B1/0002 ,  A61B1/05 ,  A61B1/0661 ,  A61B1/128 ,  H04N5/361 ,  H04N5/374

Abstract: An electronic endoscope system is composed of an electronic endoscope, a light source apparatus, and a temperature converter. The electronic endoscope has a CMOS sensor in a distal portion of an insert section to be inserted into a patient's body cavity. Illumination light from the light source apparatus is applied to the body cavity through the distal portion. The temperature converter obtains an average pixel value of an optical black (OB) region out of an imaging signal from the CMOS sensor, and converts the average OB pixel value into a temperature of the CMOS sensor on a frame-by-frame basis with the use of data in a temperature conversion table. The table represents a relationship between the average OB pixel value and the temperature of the CMOS sensor. Light quantity of the illumination light is adjusted in accordance with the temperature of the CMOS sensor to prevent deterioration of image quality.

Abstract translation: 电子内窥镜系统由电子内窥镜，光源装置和温度转换器构成。 电子内窥镜在插入部分的远端部分中具有CMOS传感器，以插入患者的体腔中。 来自光源装置的照明光通过远端部分施加到体腔。 温度转换器从CMOS传感器的成像信号中获得光学黑（OB）区域的平均像素值，并且将平均OB像素值逐帧地转换为CMOS传感器的温度， 在温度转换表中使用数据。 该表表示CMOS传感器的平均OB像素值和温度之间的关系。 根据CMOS传感器的温度来调节照明光的光量，以防止图像质量的劣化。

公开(公告)号：US20160353972A1

公开(公告)日：2016-12-08

申请号：US15244293

申请日：2016-08-23

Applicant: FUJIFILM Corporation

Inventor： Takashi YANO ,  Jin MURAYAMA ,  Hideo SETO ,  Masaaki KOSHIBA

IPC: A61B1/00 ,  A61B5/1455 ,  A61B5/1459 ,  G02B23/24 ,  A61B1/06 ,  H04N5/225 ,  H04N5/353 ,  A61B1/05 ,  A61B1/04

CPC classification number: A61B1/00009 ,  A61B1/00006 ,  A61B1/0002 ,  A61B1/041 ,  A61B1/043 ,  A61B1/045 ,  A61B1/051 ,  A61B1/0653 ,  A61B5/0075 ,  A61B5/14551 ,  A61B5/14556 ,  A61B5/1459 ,  G02B23/2461 ,  G02B23/2484 ,  G02B23/26 ,  H04N5/2256 ,  H04N5/3532 ,  H04N7/18 ,  H04N2005/2255

Abstract: There are provided an endoscope system, a processor apparatus for an endoscope system, and a method for operating an endoscope system. In a special observation mode, first illumination light and second illumination light having a spectral property different from a spectral property of the first illumination light and including different-absorption-wavelength light that has different absorption coefficients for oxygenated hemoglobin and reduced hemoglobin are alternately emitted to a test body while a turn-off period is interposed. A first image capture signal is read from the image sensor during the turn-off period after emission of the first illumination light, and a second image capture signal is read from the image sensor during the turn-off period after emission of the second illumination light. Here, a second read time taken to read the second image capture signal is made shorter than a first read time taken to read the first image capture signal.

Abstract translation: 提供了一种内窥镜系统，内窥镜系统的处理器装置以及操作内窥镜系统的方法。 在特殊观察模式中，具有与第一照明光的光谱性质不同的光谱特性的第一照明光和具有不同吸收波长的不同吸收波长的光，对于氧合血红蛋白和还原型血红蛋白具有不同的吸收系数的交替发射到 一个测试体，而一个关闭时间被插入。 在第一照明光发射后的关断时段期间，从图像传感器读取第一图像捕捉信号，并且在发射第二照明光之后的关断时段期间从图像传感器读取第二图像捕获信号 。 这里，读取第二图像捕捉信号所需的第二读取时间比读取第一图像捕捉信号所用的第一读取时间短。

公开(公告)号：US20140194686A1

公开(公告)日：2014-07-10

申请号：US14151533

申请日：2014-01-09

Applicant: FUJIFILM Corporation

Inventor： Jin MURAYAMA

IPC: A61B1/00 ,  A61B1/06 ,  A61B1/05

CPC classification number: A61B1/00009 ,  A61B1/00006 ,  A61B1/0002 ,  A61B1/05 ,  A61B1/0638

Abstract: An endoscopic device includes: a light source unit configured to repeat for every frame period, an operation of emitting illumination light during a front period and turning off the illumination light during a back period of the frame period; a buffer memory mounted in an endoscopic scope and configured to store image information of a frame image signal output from an image capturing unit; and an information transmitting unit configured to read out the image information of the frame image signal from the buffer memory and transmit the image information to an image processing unit, in which the information transmitting unit reads out the image information of the frame image signal from the buffer memory within the frame period.

Abstract translation: 内窥镜装置包括：光源单元，被配置为在每个帧周期中重复，在前段期间发射照明光的操作，并且在帧周期的后期期间关闭照明光; 缓冲存储器，其被安装在内窥镜镜面上并被配置为存储从图像拍摄单元输出的帧图像信号的图像信息; 以及信息发送单元，被配置为从缓冲存储器读出帧图像信号的图像信息，并将图像信息发送到图像处理单元，其中信息发送单元从该图像处理单元读出来自该图像信号的图像信息 帧周期内的缓冲存储器。

公开(公告)号：US20140012113A1

公开(公告)日：2014-01-09

申请号：US13934476

申请日：2013-07-03

Applicant: FUJIFILM Corporation

Inventor： Toshihiko KAKU ,  Jin MURAYAMA

IPC: A61B5/1455 ,  A61B1/06 ,  A61B5/1459

CPC classification number: A61B5/14551 ,  A61B1/00009 ,  A61B1/043 ,  A61B1/05 ,  A61B1/06 ,  A61B1/0638 ,  A61B1/0653 ,  A61B5/1459

Abstract: In a special mode for imaging an oxygen saturation level of blood, an internal body portion is imaged under irradiation with special illumination light. A light amount evaluation section judges based on an obtained image whether or not a reflected light amount of the special illumination light is adequate for calculating the oxygen saturation level. When the reflected light amount is judged to be adequate, a normal image sensor captures an image under irradiation with the special illumination light. When the reflected light amount is judged to be low, a high-sensitivity image sensor is used. In using the high-sensitivity image sensor, a binning process is applied to an image signal in accordance with the reflected light amount of the special illumination light, in order to further sensitize the image signal.

Abstract translation: 在用于对血氧饱和度水平进行成像的特殊模式中，在特殊照明光照射下对内部身体部分进行成像。 光量评价部基于获得的图像判断特殊照明光的反射光量是否足以计算氧饱和度水平。 当反射光量被判定为足够时，普通图像传感器在照射特殊照明光的同时拍摄图像。 当反射光量判断为低时，使用高灵敏度的图像传感器。 在使用高灵敏度图像传感器时，根据特殊照明光的反射光量将合并处理应用于图像信号，以便进一步使图像信号感光。