公开(公告)号：US20060256192A1

公开(公告)日：2006-11-16

申请号：US11431567

申请日：2006-05-11

申请人： Kohei Iketani ,  Mitsufumi Fukuyama

发明人： Kohei Iketani ,  Mitsufumi Fukuyama

IPC分类号： H04N7/18

CPC分类号： H04N5/20 ,  A61B1/00009 ,  A61B1/045 ,  G02B23/2484 ,  H04N5/21 ,  H04N5/235 ,  H04N5/243 ,  H04N2005/2255

摘要： An endoscope processor comprising an image signal receiver, a calculator, an amplifier, and a noise reduction unit, is provided. The image signal receiver receives a raw image signal. The image signal is generated by an imaging device when the imaging device captures an optical image of an object. The calculator calculates a first gain. The first gain is used for amplifying the raw image signal. The amplifier amplifies the raw image signal based on the first gain, and then the amplified image signal is generated. The noise reduction unit reduces noise included in the amplified image signal according to the first gain, and then the noise-reduced signal is generated.

摘要翻译： 提供了包括图像信号接收器，计算器，放大器和降噪单元的内窥镜处理器。 图像信号接收器接收原始图像信号。 当成像装置捕获物体的光学图像时，图像信号由成像装置产生。 计算器计算第一个增益。 第一增益用于放大原始图像信号。 放大器基于第一增益放大原始图像信号，然后产生放大的图像信号。 噪声降低单元根据第一增益降低包含在放大图像信号中的噪声，然后产生噪声降低信号。

公开(公告)号：US06697101B1

公开(公告)日：2004-02-24

申请号：US09664829

申请日：2000-09-19

申请人： Akihiro Takahashi ,  Kohei Iketani

发明人： Akihiro Takahashi ,  Kohei Iketani

IPC分类号： H04N718

CPC分类号： H04N7/183 ,  A61B1/04

摘要： An electronic endoscope has a video-scope having an image sensor and a video-processor. The video-scope is connected to the video-processor, to which a computer system, having a display unit and a digital recorder, is connected. The image-pixel signals corresponding to an object image, formed on the image sensor, are read from the image sensor and processed to obtain digital video signals. The digital video signals are generated in accordance with a square-pixel frequency, which is a sampling frequency for the computer system. The digital video signals are fed to the computer system to display the object image on the display unit, and/or record the object image in the digital recorder.

摘要翻译： 电子内窥镜具有图像传感器和视频处理器的视频范围。 视频范围连接到视频处理器，连接有具有显示单元和数字记录器的计算机系统。 形成在图像传感器上的对象图像对应的图像像素信号从图像传感器读取并进行处理以获得数字视频信号。 数字视频信号根据作为计算机系统的采样频率的平方像素频率生成。 数字视频信号被馈送到计算机系统以在显示单元上显示对象图像，和/或将对象图像记录在数字记录器中。

公开(公告)号：US06181368B2

公开(公告)日：2001-01-30

申请号：US08982642

申请日：1997-12-02

申请人： Akihiro Takahashi ,  Kohei Iketani ,  Hideo Sugimoto

发明人： Akihiro Takahashi ,  Kohei Iketani ,  Hideo Sugimoto

IPC分类号： H04N969

CPC分类号： H04N5/202 ,  H04N9/69 ,  H04N9/735 ,  H04N17/002 ,  H04N21/478

摘要： An electronic endoscope having a solid state image pickup device supplies an image signal which is converted into a digital signal and subject to a gamma correction in a gamma correcting portion in accordance with gamma correcting data stored in and read from a look-up table. The look-up table stores only data necessary for the gamma correction with respect to the image signal, so that data for the gamma correction is added to the image signal in the gamma correcting portion to output a gamma-corrected signal.

摘要翻译： 具有固态图像拾取装置的电子内窥镜根据存储在查阅表中并从查阅表中读出的伽马校正数据，提供转换成数字信号并进行伽马校正部分的伽马校正的图像信号。 查找表仅存储关于图像信号的伽马校正所需的数据，从而将用于伽马校正的数据添加到伽马校正部分中的图像信号，以输出伽马校正信号。

公开(公告)号：US5929899A

公开(公告)日：1999-07-27

申请号：US683989

申请日：1996-07-19

申请人： Akihiro Takahashi ,  Kohei Iketani

发明人： Akihiro Takahashi ,  Kohei Iketani

IPC分类号： H04N5/225 ,  H04N7/18 ,  H04N9/04 ,  A62B1/04 ,  H04N9/47 ,  H04N9/64

CPC分类号： H04N7/18 ,  H04N9/045 ,  H04N2005/2255

摘要： An electronic endoscope in which images of an object to be viewed are picked-up in a field-sequential system by a solid-state image pickup device. The electronic endoscope includes a primary converter for converting different color image signals picked-up by the solid-state image pickup device and successively output therefrom, into digital image signals. A single memory temporarily stores the digital image signals in a point-sequential system. A secondary converter converts the digital image signals successively read from the single memory, into analog image signals. A delay delays a part or all of the analog image signals by different delay times to synchronize the color image signals.

摘要翻译： 一种电子内窥镜，其中通过固态图像拾取装置在场顺序系统中拾取待观看对象的图像。 电子内窥镜包括用于将由固态图像拾取装置拾取的不同彩色图像信号转换为数字图像信号的主转换器。 单个存储器将数字图像信号临时存储在点序系统中。 次级转换器将从单个存储器连续读取的数字图像信号转换为模拟图像信号。 A延迟通过不同的延迟时间来延迟部分或全部模拟图像信号以使彩色图像信号同步。

公开(公告)号：US07787940B2

公开(公告)日：2010-08-31

申请号：US11352228

申请日：2006-02-13

申请人： Kohei Iketani ,  Mitsufumi Fukuyama

发明人： Kohei Iketani ,  Mitsufumi Fukuyama

IPC分类号： A61B6/00

摘要： An image data processor comprising an image signal receiver, a histogram generator, a gain calculator, an amplifier, and a signal feeder, is provided. The image signal receiver receives an autofluorescence image signal. The autofluorescence image signal is generated by an imaging device when the imaging device captures an autofluorescence image. The histogram generator generates a histogram of luminance in the autofluorescence image based on the autofluorescence image signal. The gain calculator calculates a gain based on the histogram and a predetermined luminance value. The amplifier amplifies the autofluorescence image signal by the gain. And then the amplifier generates an amplified autofluorescence image signal. The signal feeder outputs the amplified autofluorescence image signal to a monitor. The monitor displays an amplified autofluorescence image.

公开(公告)号：US20100157036A1

公开(公告)日：2010-06-24

申请号：US12640080

申请日：2009-12-17

申请人： Hideo SUGIMOTO ,  Kohei IKETANI

发明人： Hideo SUGIMOTO ,  Kohei IKETANI

IPC分类号： H04N7/18

CPC分类号： G02B23/2484 ,  A61B1/00009 ,  A61B1/00167 ,  A61B1/00172 ,  A61B1/00186 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/07 ,  A61B5/0062 ,  A61B5/0071 ,  A61B5/0084 ,  G02B21/0028 ,  G02B21/0076 ,  G02B21/008 ,  G02B26/103 ,  H04N5/2256 ,  H04N5/232 ,  H04N9/097 ,  H04N2005/2255

摘要： A scanning endoscope processor, comprising a photoelectric converter and a controller, is provided. The scanning endoscope processor controls a scanning endoscope having first and second transmitters and an actuator. The photoelectric converter receives light transmitted from the second transmitter and generates a pixel signal according to the amount of light received. The second transmitter transmits reflected light and/or fluorescence from a point within an observation area illuminated by the light emitted from a first emission end. The first transmitter emits the light as a beam from the first emission end. The actuator moves the first emission end along a spiral course. The controller adjusts at least one of a first angular velocity and a generation cycle so that the product of the first angular velocity, the generation cycle, and a first distance is within a predetermined range.

摘要翻译： 提供一种包括光电转换器和控制器的扫描内窥镜处理器。 扫描内窥镜处理器控制具有第一和第二发射器和致动器的扫描内窥镜。 光电转换器接收从第二发送器发送的光，并根据所接收的光量产生像素信号。 第二发射器从由从第一发射端发射的光照射的观察区域内的点发射反射光和/或荧光。 第一发射器作为来自第一发射端的光束发射光。 执行器沿着螺旋方向移动第一发射端。 控制器调整第一角速度和生成周期中的至少一个，使得第一角速度，产生循环和第一距离的乘积在预定范围内。

公开(公告)号：US20070073104A1

公开(公告)日：2007-03-29

申请号：US11530624

申请日：2006-09-11

申请人： Kohei IKETANI ,  Mitsufumi FUKUYAMA

发明人： Kohei IKETANI ,  Mitsufumi FUKUYAMA

IPC分类号： A61B1/04

CPC分类号： A61B1/042 ,  A61B1/0005 ,  A61B1/045 ,  G02B23/2476

摘要： An electronic endoscope system has a video-scope, an illumination apparatus, an imaging device, and an image synthesizing processor. The illumination apparatus illuminates a normal light and an excitation-light from the video-scope onto an object. The normal light is reflected off the object, and the excitation-light causes the object to emit fluorescence. The imaging device on the video-scope captures a normal image that is formed by the reflected normal light and a fluorescent image that is formed by the fluorescence. The image synthesizing processor synthesizes the normal image and the fluorescent image into a synthesized image. A color signal of the synthesized image is the same as a color signal of the normal image. A luminance signal or the synthesized image is obtained by mixing a luminance signal of the normal image and a luminance signal of the fluorescent image in a predetermined proportion.

摘要翻译： 电子内窥镜系统具有视频范围，照明装置，成像装置和图像合成处理器。 照明装置将来自视频范围的正常光和激发光照射到物体上。 正常光被物体反射，激发光使物体发出荧光。 视频范围上的成像装置捕获由反射的正常光形成的正常图像和由荧光形成的荧光图像。 图像合成处理器将正常图像和荧光图像合成为合成图像。 合成图像的颜色信号与正常图像的颜色信号相同。 通过以规定的比例混合正常图像的亮度信号和荧光图像的亮度信号，获得亮度信号或合成图像。

公开(公告)号：US20070041720A1

公开(公告)日：2007-02-22

申请号：US11464531

申请日：2006-08-15

申请人： Kohei IKETANI

发明人： Kohei IKETANI

IPC分类号： A61B1/04

CPC分类号： G02B23/2461 ,  A61B1/00009 ,  A61B1/00186 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B5/0071 ,  A61B5/0084 ,  G02B23/2484

摘要： An electronic endoscope according to the present invention has a video-scope that has a first image sensor and a second image sensor, and a light supplier that selectively irradiates white light and excitation-light on an observed portion. The electronic endoscope further has a first color filter that has spectral transmitting characteristics, such that light having a first wavelength range corresponding to blue color is transmitted, and a second color filter that has spectral transmitting characteristics, such that light having a second wavelength range corresponding to green and red colors is transmitted. The electronic endoscope has a first signal processor, a second signal processor, and a third signal processor. The first signal processor generates normal image video signals. The second signal processor generates narrow-band video signals. The third signal processor generates auto-fluorescent video signals.

摘要翻译： 根据本发明的电子内窥镜具有具有第一图像传感器和第二图像传感器的视频范围，以及在观察部分上选择性地照射白光和激发光的供光装置。 电子内窥镜还具有具有光谱传输特性的第一滤色器，使得具有对应于蓝色的第一波长范围的光被透射，以及具有光谱透射特性的第二滤色器，使得具有对应于第二波长范围的光 传递绿色和红色。 电子内窥镜具有第一信号处理器，第二信号处理器和第三信号处理器。 第一信号处理器产生正常图像视频信号。 第二信号处理器产生窄带视频信号。 第三信号处理器产生自动荧光视频信号。

公开(公告)号：US06858004B1

公开(公告)日：2005-02-22

申请号：US09709709

申请日：2000-11-13

申请人： Ryo Ozawa ,  Makoto Koike ,  Hiroyuki Kobayashi ,  Kohei Iketani ,  Hideo Sugimoto

发明人： Ryo Ozawa ,  Makoto Koike ,  Hiroyuki Kobayashi ,  Kohei Iketani ,  Hideo Sugimoto

IPC分类号： A61B1/04 ,  G02B23/24 ,  H04N7/18 ,  A61B1/00 ,  H04N9/47

CPC分类号： G02B23/2484 ,  A61B1/04 ,  H04N7/181

摘要： An electronic endoscope system has a plurality of video-processors, a plurality of video-scopes, a selector, a monitor and an input device. The plurality of video-processors, the monitor and the input device are connected to the selector. Each of the plurality of video-processors processes image signals from the corresponding video-scope to obtain and output video signals to the selector. The selector selects one of the plurality of video-processors and feeds video signals from a selected video-processor to the monitor. The input device operates the selected video-processor.

摘要翻译： 电子内窥镜系统具有多个视频处理器，多个视频监视器，选择器，监视器和输入装置。 多个视频处理器，监视器和输入设备连接到选择器。 多个视频处理器中的每一个处理来自相应视频范围的图像信号以获得并输出视频信号到选择器。 选择器选择多个视频处理器中的一个并将来自所选视频处理器的视频信号馈送到监视器。 输入设备操作所选择的视频处理器。

公开(公告)号：US06545703B1

公开(公告)日：2003-04-08

申请号：US09344524

申请日：1999-06-25

申请人： Tadashi Takahashi ,  Kohei Iketani

发明人： Tadashi Takahashi ,  Kohei Iketani

IPC分类号： H04N718

CPC分类号： H04N5/2354 ,  H04N5/23209 ,  H04N7/183 ,  H04N2005/2255

摘要： In an electronic endoscope, a flexible scope has an image sensor provided at a distal end thereof. A video-signal processing unit, to which a proximal end of the flexible scope is connected, processes image signals read from the sensor. A light source is provided in the unit, and light, emitted from the light source, is guided through the scope and radiates from the distal end. An aperture-stop is associated with the source that regulates the radiation of light from the distal end. An aperture-stop is controlled in accordance with the luminance-signal-histogram, such that an image having a constant luminance level is reproduced in accordance with the processed image signals. When a localized halation occurs on the reproduced image, the aperture-stop is controlled such that the radiation of light from the distal end is forcibly decreased, thereby avoiding the occurrence of the localized halation.

摘要翻译： 在电子内窥镜中，柔性镜具有设置在其远端的图像传感器。 视频信号处理单元，连接柔性镜片的近端处理从传感器读取的图像信号。 在该单元中提供光源，并且从光源发射的光被引导通过示波器并从远端辐射。 孔径光阑与调节来自远端的光的辐射的源相关联。 根据亮度信号直方图控制孔径光阑，使得根据处理的图像信号再现具有恒定亮度水平的图像。 当在再现图像上发生局部晕变时，控制孔径光阑使得来自远端的光的辐射被强制地减小，由此避免局部晕倒的发生。