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公开(公告)号：US20220192470A1
公开(公告)日：2022-06-23
申请号：US17436742
申请日：2020-09-01
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: A light source device of an endoscope system that accurately evaluates a degree of a lesion in a lesion emits first light having a long wavelength and second light having a short wavelength which include a plurality of absorption peak wavelengths of hemoglobin as illumination light. An image processing unit in a processor includes: a detection unit configured to generate a first blood vessel detection image including a blood vessel image in an emphasized manner from a first captured image obtained by illumination with the first light, by using template matching using a feature shape of the blood vessel, and generate a second blood vessel detection image including a blood vessel image in the emphasized manner from a second captured image obtained by illumination with the second light; a separation unit configured to separate the first blood vessel detection image and the second blood vessel detection image into a shallow blood vessel image and a deep blood vessel image; a feature amount calculation unit configured to calculate a shallow blood vessel feature amount regarding the shallow blood vessel image and a deep blood vessel feature amount regarding the deep blood vessel image; and an evaluation unit configured to calculate severity of a lesion of a biological tissue by using the shallow blood vessel feature amount and the deep blood vessel feature amount.
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公开(公告)号：US20210259515A1
公开(公告)日：2021-08-26
申请号：US17251937
申请日：2019-09-18
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system includes an electronic endoscope, a processor that includes an evaluation unit, and a monitor. The evaluation unit includes an evaluation value calculation unit that calculates a lesion evaluation value indicating the intensity of lesion in the living tissue in each of the images, an imaging position information acquisition unit that acquires information on the imaging position of each image, a lesion position calculation unit that determines the presence or absence of the lesion based on whether the lesion evaluation value exceeds a predetermined threshold and obtains a start position and an end position of a region of a lesion portion, and an organ lesion evaluation unit that evaluates a degree of lesion in the organ using a length of the lesion portion calculated from the start position and the end position and a representative value of the lesion evaluation value.
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公开(公告)号：US20180279866A1
公开(公告)日：2018-10-04
申请号：US15764821
申请日：2016-09-30
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An endoscope system, includes a light source device that emits illumination light to an object, an image obtaining part that captures light reflected at the object by an image pickup element and thereby obtains a color image including at least three color components, and an evaluation part that obtains, for each of pixels constituting the color image obtained by the image obtaining part, an evaluation result concerning a target disease based on an angle, in a color plane being defined by at least two of the at least three color components, formed between a line segment, which connects a predetermined reference point positioned on the color plane with a corresponding pixel point allocated corresponding to the each of the pixels in the color plane, and a reference axis having a correlation with the target disease. The reference axis is set to pass through the predetermined reference point.
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公开(公告)号：US20180189933A1
公开(公告)日：2018-07-05
申请号：US15556420
申请日：2017-07-18
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
CPC classification number: G06T5/002 , A61B1/00006 , A61B1/00009 , A61B1/00186 , A61B1/045 , A61B1/05 , A61B1/0646 , A61B1/0669 , G02B23/2469 , G06T5/50 , G06T7/136 , G06T2207/10024 , G06T2207/10068 , G06T2207/20024 , G06T2207/20224 , H04N5/213 , H04N5/357 , H04N7/183
Abstract: Provided are an image processing device and an electronic endoscope system that can acquire a high-quality endoscope observation image by performing sufficient noise reduction processing even if an image capture environment changes. A noise reduction processing unit sets a pixel of interest and a neighboring pixel out of a plurality of pixels that constitute an endoscope observation image, and performs noise reduction processing on the pixel of interest according to a magnitude relationship between: a difference in pixel value between the pixel of interest and the neighboring pixel; and a reference threshold value. A reference threshold value changing processing unit changes the reference threshold value for noise reduction processing based on a ratio between at least two color components that are included in the pixel of interest.
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公开(公告)号：US20180184889A1
公开(公告)日：2018-07-05
申请号：US15556425
申请日：2017-07-18
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
CPC classification number: A61B1/045 , A61B1/00009 , A61B1/05 , A61B1/0669 , G02B23/2469
Abstract: Provided are an image processing apparatus and an electronic endoscope system that can acquire an observation image that is natural overall and has excellent visibility, while highlighting characteristic parts such as affected parts and parts that are to be examined. A normal observation image captured using normal light and a narrow-band observation image captured using narrow-band light that has a bandwidth narrower than that of normal light are input to the observation image input unit. A characteristic part extraction unit extracts a characteristic part that is included in a narrow-band observation image. A highlight display unit displays a single image in which a part of the normal observation image, the part corresponding to a characteristic part that is included in the narrow-band observation image, is highlighted using the characteristic part.
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Patent Agency Ranking
公开(公告)号：US20230142219A1
公开(公告)日：2023-05-11
申请号：US17912725
申请日：2021-09-01
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
CPC classification number: G06T7/0016 , G06T7/90 , G06T7/74 , A61B1/000094 , A61B5/4842 , A61B5/1032 , G06T2207/10068 , G06T2207/30096 , G06T2207/30101 , G06T2207/30028 , G06T2207/10024 , G16H30/20
Abstract: A processor for an endoscope includes an image processing unit that obtains a severity of a lesion in which a degree of progression is represented by one value, wherein the image processing unit includes a feature amount calculation unit configured to calculate a first pixel evaluation value indicating a degree of a first feature of appearance appearing in a lesion part, a representative value calculation unit configured to calculate a first representative evaluation value by integrating the first pixel evaluation values, and an integration unit configured to adjust an influence degree of the first representative evaluation value indicating a change in the severity with respect to a change in the first representative evaluation value based on information on a color component of an image, and calculate the severity of the lesion based on at least the first representative evaluation value by using the adjusted influence degree.
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公开(公告)号：US20220211250A1
公开(公告)日：2022-07-07
申请号：US17604918
申请日：2020-08-31
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system is provided with an electronic endoscope, a processor provided with a still image acquisition unit that acquires a part of a moving image imaged by the electronic endoscope as a still image, an association processing unit that associates place information regarding an imaging place of living tissue in a the lumen with the still image, and a recording unit, a monitor, and an input operation device that transmits a capture instruction for acquiring the still image from the moving image to the still image acquisition unit in response to an operation of determining one place out of a plurality of places in the lumen set in advance as a selected place as a trigger, and further transmits information of the selected place to the association processing unit as the place information regarding the imaging place during an imaging period of the moving image.
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公开(公告)号：US20210279498A1
公开(公告)日：2021-09-09
申请号：US17260801
申请日：2019-03-20
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system includes an image processing unit that uses a numerical value to evaluate an appearance feature appearing in a biological tissue by using an images captured by an electronic endoscope. The image processing unit calculates a first pixel evaluation value indicating a degree of a first feature, which is featured by a first color component or a first shape appearing in an attention area in the biological tissue, and which relates to the first color component or the first shape, for each pixel from the image, and calculates a first representative evaluation value relating to the first feature by integrating the first pixel evaluation value. Furthermore, the image processing unit evaluates a degree of a second feature that shares the first color component or the first shape with the first feature.
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公开(公告)号：US20200258217A1
公开(公告)日：2020-08-13
申请号：US16642595
申请日：2018-10-24
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: A processor for an electronic endoscope includes an enhancement processing unit that includes: a depth data generation unit configured to generate depth data D of the entire captured image by generating a data value representing information on a depth of a concave portion of the living tissue in each pixel; an undulation-enhanced data generation unit configured to generate a value of undulation-enhanced data S, which has information with a steeply inclined change of a signal level value at a boundary between a concave portion and a convex portion of surface irregularities of the living tissue, from the depth data D; and an enhancement processing execution unit that generates an enhanced image by adding or subtracting at least a value to or from a signal level value of the processing target pixel on which the enhancement processing of the captured image is performed.
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公开(公告)号：US20190192048A1
公开(公告)日：2019-06-27
申请号：US16308451
申请日：2017-08-30
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO , Yousuke IKEMOTO
CPC classification number: A61B5/1032 , A61B1/00009 , A61B1/045 , A61B5/00 , A61B5/7425 , G06K9/6202 , G06T1/00 , G06T1/60 , H04N7/18
Abstract: An electronic endoscope processor includes a converting means for converting each piece of pixel data that is made up of n (n≥3) types of color components and constitutes a color image of a biological tissue in a body cavity into a piece of pixel data that is made up of m (m≥2) types of color components, m being smaller than n; an evaluation value calculating means for calculating, for each pixel of the color image, an evaluation value related to a target illness based on the converted pieces of pixel data that are made up of m types of color components; and a lesion index calculating means for calculating a lesion index for each of a plurality of types of lesions related to the target illness based on the evaluation values calculated for the pixels of the color image.
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