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公开(公告)号：US20240087090A1
公开(公告)日：2024-03-14
申请号：US18274914
申请日：2022-03-11
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
CPC classification number: G06T5/001 , A61B1/000095 , G06T7/90 , G06T2207/10024 , G06T2207/10068 , G06T2207/30096 , G06T2207/30101
Abstract: An aspect of the present invention is a processor for an electronic endoscope that acquires a captured image of a living tissue and performs enhancement processing. The processor includes: a region detection unit configured to detect an enhancement processing target region in the captured image from pixel information of the captured image of the living tissue; and an enhancement processing unit configured to perform enhancement processing on the enhancement processing target region detected by the region detection unit. The region detection unit detects the enhancement processing target region based on a difference in signal level between a pixel of interest in the captured image and a pixel surrounding the pixel of interest, and the enhancement processing unit performs enhancement processing on the enhancement processing target region such that enhancement is weakened as the difference in signal level is larger and enhancement is strengthened as luminance is higher.
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公开(公告)号：US20230112696A1
公开(公告)日：2023-04-13
申请号：US18082147
申请日：2022-12-15
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system includes a plotting unit which plots pixel correspondence points, which correspond to pixels that constitute an intracavitary color image that has a plurality of color components, on a target plane according to color components of the pixel correspondence points, the target plane intersecting the origin of a predetermined color space; an axis setting unit which sets a reference axis in the target plane based on pixel correspondence points plotted on the target plane; and an evaluation value calculating unit which calculates a prescribed evaluation value with respect to the captured image based on a positional relationship between the reference axis and the pixel correspondence points.
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公开(公告)号：US20210321856A1
公开(公告)日：2021-10-21
申请号：US17251930
申请日：2019-09-12
Applicant: HOYA CORPORATION
Inventor： Ryohei KOIZUMI , Yousuke IKEMOTO , 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 image evaluation value calculation unit that calculates an image evaluation value indicating an intensity of lesion in the living tissue for each of a plurality of images of the living tissue, and a lesion evaluation unit that calculates a representative evaluation value of the image evaluation value from the image evaluation values of the plurality of images corresponding to a plurality of sections for each of the plurality of sections in which a region of the organ is divided using information of an imaging position in the organ whose image is captured and evaluates an extent of the lesion in a depth direction inside the organ using the representative evaluation value.
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公开(公告)号：US20190282065A1
公开(公告)日：2019-09-19
申请号：US16433414
申请日：2019-06-06
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system includes a plotting unit which plots pixel correspondence points, which correspond to pixels that constitute a color image that has multiple color components, on a first color plane according to color components of the pixel correspondence points, the first color plane intersecting the origin of a predetermined color space; an axis setting unit which sets a predetermined reference axis in the first color plane; a transform unit which defines a second color plane that includes the reference axis, and subjecting the pixel correspondence points on the first color plane to projective transformation onto the second color plane; and an evaluation value calculating unit which calculates a prescribed evaluation value with respect to the color image based on the pixel correspondence points subjected to projective transformation onto the second color plane.
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公开(公告)号：US20210407077A1
公开(公告)日：2021-12-30
申请号：US17252942
申请日：2019-11-13
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: To provide an information processing device and the like for presenting a determination reason together with a determination result regarding a disease. The information processing device includes: an image acquisition unit that acquires an endoscope image; a first acquisition unit that inputs the endoscope image acquired by the image acquisition unit to a first model that outputs diagnosis criteria prediction regarding diagnostic criteria of disease when the endoscope image is input, and acquires the output diagnosis criteria prediction; and an output unit that outputs the diagnosis criteria prediction acquired by the first acquisition unit in association with the diagnosis prediction regarding a state of the disease acquired based on the endoscope image.
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Patent Agency Ranking
公开(公告)号：US20210266434A1
公开(公告)日：2021-08-26
申请号：US17260397
申请日：2020-02-26
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An endoscope system processor includes: a blood vessel region determination unit that obtains a likelihood of a blood vessel region by a numerical value on the basis of a shape characterizing a blood vessel in each of a plurality of parts of an image of a biological tissue, from the image obtained by an electronic endoscope; and a blood vessel feature amount calculation unit that calculates a blood vessel feature amount indicating a feature amount of the blood vessel region by integrating the numerical values of the likelihood of the blood vessel region with each other in the entire image. The blood vessel region determination unit calculates an approximation degree as the likelihood of the blood vessel region, using a spatial filter.
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公开(公告)号：US20190282064A1
公开(公告)日：2019-09-19
申请号：US16433385
申请日：2019-06-06
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An electronic endoscope system includes a plotting unit which plots pixel correspondence points, which correspond to pixels that constitute an intracavitary color image that has a plurality of color components, on a target plane according to color components of the pixel correspondence points, the target plane intersecting the origin of a predetermined color space; an axis setting unit which sets a reference axis in the target plane based on pixel correspondence points plotted on the target plane; and an evaluation value calculating unit which calculates a prescribed evaluation value with respect to the captured image based on a positional relationship between the reference axis and the pixel correspondence points.
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公开(公告)号：US20190273840A1
公开(公告)日：2019-09-05
申请号：US16308445
申请日：2017-08-30
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO , Yousuke IKEMOTO
Abstract: An electronic endoscope processor has a configuration including: a converting means for converting pieces of pixel data that are made up of n (n≥3) types of color components and constitute a color image in a body cavity into pieces of pixel data that are made up of m (m≥2) types of color components, m being smaller than n; a color component correcting means for correcting the converted pieces of pixel data made up of m types of color components with use of a predetermined color component correction coefficient; and an acquiring means for acquiring an evaluation result related to a target illness based on the corrected pieces of pixel data made up of m types of color components.
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公开(公告)号：US20170280971A1
公开(公告)日：2017-10-05
申请号：US15505780
申请日：2016-08-12
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
CPC classification number: A61B1/00009 , A61B1/00048 , A61B1/04 , G06T5/001 , G06T7/0012 , G06T7/207 , G06T2207/10024 , G06T2207/10068 , G06T2207/30028 , G06T2207/30096
Abstract: An electronic endoscope system includes a plotting unit which plots pixel correspondence points, which correspond to pixels that constitute an intracavitary color image that has a plurality of color components, on a target plane according to color components of the pixel correspondence points, the target plane intersecting the origin of a predetermined color space; an axis setting unit which sets a reference axis in the target plane based on pixel correspondence points plotted on the target plane; and an evaluation value calculating unit which calculates a prescribed evaluation value with respect to the captured image based on a positional relationship between the reference axis and the pixel correspondence points.
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公开(公告)号：US20230041803A1
公开(公告)日：2023-02-09
申请号：US17789931
申请日：2021-06-30
Applicant: HOYA CORPORATION
Inventor： Takao MAKINO
Abstract: An image processing unit of a processor for an endoscope includes: an emphasis processing calculation unit performing nonlinear gradation conversion for a pixel value of a pixel of interest, using each pixel of a captured image as the pixel of interest; and a preprocessing unit setting a reference upper limit characteristic line and a reference lower limit characteristic line in order to adjust an output pixel value after the nonlinear gradation conversion and calculating a degree of variation in pixel values in a partial setting region around the pixel of interest. The emphasis processing calculation unit calculates an output ratio of the output pixel value to a maximum pixel value that can be taken by the captured image, an adjustment upper limit value and an adjustment lower limit value, and an emphasis-processed pixel value, using the adjustment upper limit value, the adjustment lower limit value, and the output ratio.
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