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公开(公告)号：US11602277B2
公开(公告)日：2023-03-14
申请号：US16468956
申请日：2018-01-11
申请人： HOYA CORPORATION
发明人： Toru Chiba
摘要： An endoscope system includes: a processor that generates first and second feature amount distribution images of a living tissue from an imaged image of the living tissue and generates a second feature amount distribution processed image from these distribution images; and a display that displays the second feature amount distribution processed image. The processor generates a mask image of the second feature amount distribution image by, in the first feature amount distribution image, setting a pixel whose pixel value representing the first feature amount is less than a lower limit value as a non-transmissive pixel having a transmittance of zero and setting a pixel between an upper limit value and the lower limit value as a transmissive pixel while giving the pixel a transmittance determined continuously or stepwise in accordance with the pixel value in the first feature amount distribution image.
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公开(公告)号：US10031070B2
公开(公告)日：2018-07-24
申请号：US14936965
申请日：2015-11-10
申请人： HOYA CORPORATION
发明人： Toru Chiba
IPC分类号： G01N21/25 , G01N33/483 , A61B5/1459 , A61B5/1455 , A61B1/00 , G06T7/00 , A61B1/06 , A61B5/00 , G01N21/17
摘要： An analyzing device, comprising: a light source device; an image pick-up device that generates image data by capturing a biological tissue illuminated with light emitted by the light source device; and an index calculation unit configured to calculate an index representing a molar ratio between first and second biological substances contained in the biological tissue based on the image data, wherein: the light source device switches between light of a first illumination wavelength range which the first and second biological substances absorb and light of a second illumination wavelength range lying within the first illumination wavelength range; and the index calculation unit calculates the index based on first image data obtained by capturing the biological tissue under illumination of the light of the first illumination wavelength range and second image data obtained by capturing the biological tissue under illumination of the light of the second illumination wavelength range.
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公开(公告)号：US10722155B2
公开(公告)日：2020-07-28
申请号：US14894119
申请日：2014-05-28
申请人： HOYA CORPORATION
发明人： Toru Chiba
IPC分类号： A61B5/00 , A61B5/1455 , A61B5/1459 , A61B1/06 , G06T7/00 , A61B1/00 , A61B1/04 , A61B5/145
摘要： Generating an image of a molar concentration ratio between a first and second biological substance, an absorption spectrum of the first and second biological substance within a predetermined wavelength range including a first, second, third, and fourth isosbestic point, acquiring first imaging data of the tissue using light extracted from white light using a first filter to collectively selectively extract light in a first wavelength range demarcated by the first and second isosbestic point, light in a second wavelength range demarcated by the second and third isosbestic point, and light in a third wavelength range demarcated by the third and fourth isosbestic point; acquiring second imaging data by taking an image of the tissue using light from the white light using a second optical filter to selectively extract light in the second wavelength range; and generating the distribution image on the basis of the first and second imaging data.
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公开(公告)号：US10426325B2
公开(公告)日：2019-10-01
申请号：US14837300
申请日：2015-08-27
申请人： HOYA CORPORATION
发明人： Toru Chiba
IPC分类号： A61B5/00 , A61B1/06 , A61B1/00 , A61B5/145 , A61B5/1455 , A61B5/1459 , G06T7/00 , G01N21/31 , G01N21/47 , G01N33/49
摘要： An image capturing system, comprising: a light source device that emits illumination light containing wavelength regions; an image pickup device having an RGB filter; and an image processing unit to calculate a first index representing a molar concentration ratio of a first biological substance and a second biological substance contained in the living tissue, wherein the wavelength regions comprise: a first wavelength region corresponding to a B filter; and a second wavelength region corresponding to a G filter, wherein: in the first wavelength region, a value of image data B varies depending on the molar concentration ratio; the second wavelength region contains a plurality of isosbestic points of the living tissue, and, in the second wavelength region, a value of image data G takes a constant value without depending on the molar concentration ratio.
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公开(公告)号：US11885954B2
公开(公告)日：2024-01-30
申请号：US17048425
申请日：2019-08-30
申请人： HOYA CORPORATION
发明人： Toru Chiba
CPC分类号： G02B23/2469 , A61B1/00043 , A61B1/000094 , A61B1/044 , A61B1/05 , A61B1/0646 , A61B1/0655 , A61B1/07
摘要： Provided is a technology capable of generating and presenting more kinds of special light images with higher image quality. An endoscope system according to the present disclosure performs image processing using a G1 image data (image data obtained by irradiating light of 524±3 nm to 582±3 nm) and at least one of R1 image (image data obtained by irradiating light of 630±3 nm to 700±3 nm) data other than the G1 image data, B1 image data (452±3 nm to 502±3 nm), R2 image data (image data obtained by irradiating light of 582±3 nm to 630±3 nm), G2 image data (image data obtained by irradiating light of 502±3 nm to 524±3 nm), and B2 image data (image data obtained by irradiating light of 420±3 nm to 452±3 nm) so as to generate a special light image (FIG. 7).
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公开(公告)号：US11224335B2
公开(公告)日：2022-01-18
申请号：US16542783
申请日：2019-08-16
申请人： HOYA CORPORATION
发明人： Toru Chiba
IPC分类号： A61B5/00 , A61B1/06 , A61B1/00 , A61B5/145 , A61B5/1455 , A61B5/1459 , G01N21/31 , G01N21/47 , G06T7/00 , G01N33/49
摘要： An endoscope system includes an endoscope with an image pickup that generates image data by capturing an image of tissue illuminated with light containing wavelength regions spaced from and not overlapping with each other. The image pickup has an RGB filter, the wavelength regions include first and second regions corresponding to a B region and to a G region of the filter. A processor calculates an index representing a molar concentration ratio of first and second biological substances contained in the tissue based on the image data including information on the first and second regions. In the first region, image data B of the tissue varies depending on the molar concentration ratio, the second region contains isosbestic points of the tissue, and, in the second region, image data G has a constant value. The processor calculates the index based on the data B and G.
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公开(公告)号：US10791973B2
公开(公告)日：2020-10-06
申请号：US16095880
申请日：2017-07-25
申请人： HOYA CORPORATION
发明人： Yoshimi Obara , Toru Chiba
IPC分类号： A61B5/1455 , A61B1/00 , A61B1/045 , A61B1/05 , A61B1/06 , A61B5/00 , A61B5/1459 , G01N21/31 , G06T7/00
摘要： An analysis device includes a wavelength selection unit that alternatively extracts first special light and second special light from light emitted from the light source device, an image sensor that includes a RGB color filter, and a signal processing unit. In this configuration, the first special light includes light in a first wavelength region and the second special light includes light in a second wavelength region that is different from the first wavelength region. The signal processing unit calculates an indicator that indicates a feature amount of biological tissue based on a pixel signal that corresponds to the light in the first wavelength region and a pixel signal that corresponds to the light in the second wavelength region, and generates a color captured image based on a pixel signal that corresponds to light that passes through the RGB color filter.
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公开(公告)号：US20150145978A1
公开(公告)日：2015-05-28
申请号：US14399675
申请日：2013-04-23
申请人： HOYA CORPORATION
发明人： Toru Chiba
CPC分类号： A61B1/042 , A61B1/0005 , A61B1/00165 , A61B1/00186 , A61B1/04 , A61B1/0669 , A61B1/07 , A61B5/0075 , A61B5/0084 , A61B5/1459 , G02B23/2423 , G02B23/2484 , G06T7/0012 , G06T11/206 , G06T11/60 , G06T2207/10024 , G06T2207/30101 , H04N5/2358 , H04N7/18 , H04N2005/2255
摘要： The electronic endoscope device is provided with: a spectral image capturing means for capturing a spectral image of a predetermined wavelength range in a body cavity and obtaining spectral image data; a spectrum resolving means whereby the spectral data of each of the pixels included in the spectral image data is resolved into a plurality of predetermined component spectra by performing regression analysis; a spectrum compositing means for recomposing the predetermined plurality of component spectra, removing at least one of the plurality of component spectra, and thereby generating composited image data; and a display means for performing screen display on the basis of the composite image data.
摘要翻译： 电子内窥镜装置设置有：用于拍摄体腔内的预定波长范围的光谱图像并获得光谱图像数据的光谱图像捕获装置; 频谱分解装置，通过进行回归分析，将包括在频谱图像数据中的每个像素的光谱数据分解成多个预定分量光谱; 频谱合成装置，用于重构所述预定的多个分量谱，去除所述多个分量谱中的至少一个，从而产生合成的图像数据; 以及显示装置，用于基于合成图像数据执行屏幕显示。
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公开(公告)号：US10925527B2
公开(公告)日：2021-02-23
申请号：US15552604
申请日：2016-12-12
申请人： HOYA CORPORATION
发明人： Toru Chiba
IPC分类号： A61B5/1455 , A61B5/1459 , A61B1/00 , A61B1/05 , A61B1/06 , A61B1/07 , A61B5/145 , A61B5/00
摘要： An endoscope apparatus according to an embodiment of the present invention includes: a light source apparatus; an imager that has an image sensor and generates color image data by imaging biological tissue illuminated by light emitted by the light source apparatus; and a feature amount acquisitioner that acquires a feature amount of the biological tissue based on the color image data. The feature amount acquisitioner includes: a first parameter generator that, based on the color image data, generates a first parameter that has sensitivity to a first feature amount of the biological tissue, but substantially does not have sensitivity to light scattering by the biological tissue; and a first feature amount acquisitioner that acquires the first feature amount based on the first parameter.
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公开(公告)号：US10905318B2
公开(公告)日：2021-02-02
申请号：US16333197
申请日：2017-10-12
申请人： HOYA CORPORATION
发明人： Masaaki Fukuda , Yoshimi Obara , Toru Chiba
摘要： An endoscope system includes a processor and displays a distribution image of living substance feature amounts obtained from an imaged image of a living tissue. The processor calculates the living substance feature amount in the living tissue, for example, an amount of hemoglobin and oxygen saturation of the hemoglobin using components of color image data of the living tissue illuminated with at least two lights, generates the feature amount distribution image illustrating a distribution of the living substance feature amounts, and controls display of the feature amount distribution image in order to display the generated feature amount distribution image so as to be superimposed on the image of the living tissue.
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