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公开(公告)号：US20210264592A1
公开(公告)日：2021-08-26
申请号：US17245895
申请日：2021-04-30
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
Abstract: A medical image acquisition unit acquires a medical image obtained by imaging an observation target. A feature amount calculation unit calculates a feature amount of the observation target for each pixel of an image region of the medical image or for each divided region obtained by dividing the image region of the medical image into a specific size. A stage determination unit calculates a distribution index value which is an index value of the spatial distribution of the feature amount of each divided region, and determines the disease stage of the observation target based on the distribution index value.
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公开(公告)号：US20210007578A1
公开(公告)日：2021-01-14
申请号：US17035936
申请日：2020-09-29
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
Abstract: Provided is a medical image processing system that can stably control the light emission amount of narrow-band light of a short wavelength in a case where the narrow-band light of the short wavelength is used for illumination of an observation target. A light source circuit emits specific narrow-band light of a short wavelength. An image sensor includes a first pixel group including a B pixel and a second pixel group including a G pixel. The B pixel has a higher sensitivity to the specific narrow-band light than the G pixel. The G pixel has a sensitivity to light in a green band and the specific narrow-band light. The light source control unit controls the light emission amount of the specific narrow-band light on the basis of a pixel value of the B pixel and a pixel value of the G pixel.
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公开(公告)号：US20190239736A1
公开(公告)日：2019-08-08
申请号：US16383674
申请日：2019-04-15
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
CPC classification number: A61B1/0638 , A61B1/00 , A61B1/00004 , A61B1/00039 , A61B1/00045 , A61B1/045 , A61B1/06
Abstract: An endoscope system capable of setting the optimal balance of light source wavelengths in accordance with a diagnosis purpose is provided. An endoscope system includes a diagnosis purpose acquisition unit, a plurality of light sources with different light emission wavelengths, a light quantity ratio storage unit, a light quantity ratio selection unit, and a light source control unit. The diagnosis purpose acquisition unit acquires a diagnosis purpose. The light quantity ratio storage unit stores correspondence between the diagnosis purpose and a plurality of light quantity ratios with different balances of respective emission light quantities of the plurality of light sources. The light quantity ratio selection unit refers to the light quantity ratio storage unit and selects the light quantity ratio that is used for the acquired diagnosis purpose. The light source control unit controls the plurality of light sources to emit illumination light with the selected light quantity ratio.
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公开(公告)号：US20190222737A1
公开(公告)日：2019-07-18
申请号：US16367251
申请日：2019-03-28
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
CPC classification number: H04N5/2352 , A61B1/00 , A61B1/00006 , A61B1/00009 , A61B1/0005 , A61B1/041 , A61B1/045 , A61B1/0638 , A61B1/0669 , A61B1/0684 , A61B1/07 , G06K9/6232 , G06K2209/05 , H04N5/2256 , H04N9/735 , H04N2005/2255
Abstract: An endoscope system which can reduce visual discomfort even in a case where a normal image and a special image are alternately displayed, and a method of operating the endoscope system are provided. In a case where an observation target including a first structure is illuminated with first mode illumination light, a first mode display image obtained by imaging the observation target is acquired. In a case where the observation target is illuminated with second mode illumination light, a second mode display image obtained by imaging the observation target is acquired. A corrected image is obtained by correcting the first mode display image or the second mode display image such that a difference in a color and/or brightness of the first structure between the first mode display image and the second mode display image before the correction becomes small.
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15.发明申请公开(公告)号：US20160295085A1
公开(公告)日：2016-10-06
申请号：US15088983
申请日：2016-04-01
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
CPC classification number: H04N5/2256 , A61B1/00006 , A61B1/00009 , A61B1/00188 , A61B1/041 , A61B1/06 , H04N5/2252 , H04N5/23245 , H04N5/23296 , H04N5/2354 , H04N2005/2255
Abstract: An endoscope operating method for an endoscope includes a step of applying light to an object through an endoscope tip of the endoscope. The object illuminated with the light is imaged through the endoscope tip. The object is magnified at a first magnification by optical zooming. The object is magnified at a second magnification by electronic zooming according to an image signal obtained by imaging the object. A value relationship between the first and second magnifications is changed according to an illumination type of the light. In case a total magnification for magnifying the object is equal to or less than an upper limit of the first magnification, the object is magnified by the optical zooming. In case the total magnification is more than the upper limit, the object is magnified by the optical zooming and the electronic zooming.
Abstract translation: 一种内窥镜的内窥镜操作方法，其特征在于，具有通过所述内窥镜的内窥镜前端向物体照射光的工序。 用光照射的物体通过内窥镜尖端成像。 物体通过光学变焦以第一放大倍率放大。 根据通过对物体成像获得的图像信号，通过电子变焦在第二放大倍率物体被放大。 第一和第二放大倍数之间的值关系根据光的照明类型而改变。 在用于放大对象的总放大率等于或小于第一倍率的上限的情况下，通过光学变焦放大对象。 在总放大倍率大于上限的情况下，物体通过光学变焦和电子变焦放大。
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Patent Agency Ranking
公开(公告)号：US20160089012A1
公开(公告)日：2016-03-31
申请号：US14869285
申请日：2015-09-29
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
CPC classification number: A61B1/0638 , A61B1/04 , A61B1/0646 , A61B1/0684 , G06T7/0012 , G06T2207/10024 , G06T2207/10068 , G06T2207/20212 , G06T2207/30101 , H04N5/2256 , H04N5/2354 , H04N9/045 , H04N2005/2255
Abstract: An endoscope system is provided with a light source unit for generating illumination light, an image sensor for imaging an object of interest irradiated with the illumination light, an image signal obtaining section, a calculated image signal generator, and an image generator. The image signal obtaining section obtains a B1 image signal corresponding to violet light and a B2 image signal corresponding to blue light. The calculated image signal generator generates a calculated image signal from the B1 and B2 image signals. The image generator generates an image in which one of the B1 image signal and the B2 image signal is assigned to a luminance channel or a green channel and the calculated image signal is assigned to a remaining channel.
Abstract translation: 内窥镜系统设置有用于产生照明光的光源单元，用于对照明光照射的感兴趣对象进行成像的图像传感器，图像信号获取部，计算出的图像信号发生器和图像生成器。 图像信号获取部分获得对应于紫色光的B1图像信号和对应于蓝色光的B2图像信号。 计算出的图像信号发生器从B1和B2图像信号产生计算的图像信号。 图像生成器生成将B1图像信号和B2图像信号中的一个分配给亮度通道或绿色通道的图像，并将计算出的图像信号分配给剩余通道。
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公开(公告)号：US20210224989A1
公开(公告)日：2021-07-22
申请号：US17225872
申请日：2021-04-08
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
Abstract: An effective diagnosis region detection unit uses an effective diagnosis region detection model and detects an effective diagnosis region in which a non-target region of interest other than a region of interest is removed from an observation target, from a first medical image. The effective diagnosis region detection model is obtained by learning using first learning data including the first medical image and effective diagnosis region information regarding the effective diagnosis region. The region-of-interest detection unit detects the region of interest from the effective diagnosis region.
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公开(公告)号：US20200242764A1
公开(公告)日：2020-07-30
申请号：US16847674
申请日：2020-04-14
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
Abstract: A medical image processing apparatus includes a medical image acquisition unit that acquires a medical image including a subject image, a first discrimination processing unit that performs a first discrimination process of detecting a lesion and discriminating a degree of progress of the detected lesion by using a first medical image captured using first illumination light having a specific spectrum, among the medical images, and a second discrimination processing unit that performs a second discrimination process of discriminating the degree of progress of the lesion by using a second medical image captured using second illumination light having a spectrum different from the first illumination light, among the medical images.
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19.发明申请公开(公告)号：US20200214547A1
公开(公告)日：2020-07-09
申请号：US16824629
申请日：2020-03-19
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
Abstract: An imaging unit acquires a white light image by imaging an observation target being illuminated with white light, and acquires a specific light image by imaging the observation target being illuminated with specific light. A light source control unit controls the number of light emission frames of the white light and the number of light emission frames of the specific light in one light emission cycle according to at least one of a moving speed of the imaging unit, zoom information, or a light emission amount.
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公开(公告)号：US20190239737A1
公开(公告)日：2019-08-08
申请号：US16388894
申请日：2019-04-19
Applicant: FUJIFILM Corporation
Inventor： Tatsuya AOYAMA
CPC classification number: A61B1/0638 , A61B1/00 , A61B1/00009 , A61B1/00096 , A61B1/00188 , A61B1/043 , A61B1/045 , A61B1/0646 , A61B1/0653 , A61B1/0669 , A61B1/0684
Abstract: The imaging condition acquisition unit acquires a first imaging condition as an imaging condition for imaging an observation object by using an endoscope. The index-value and imaging-condition storage unit stores correspondence between the imaging condition, and, as an index value relating to a structure of an observation object, a plurality of index values including a first index value acquirable under the first imaging condition and a second index value non-acquirable under the first imaging condition but acquirable under a second imaging condition. The imaging condition extraction unit refers to the index-value and imaging-condition storage unit and extracts the second imaging condition. The guidance display unit displays guidance indicating that the second index value is acquirable under the extracted second imaging condition.
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