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公开(公告)号：US11357399B2
公开(公告)日：2022-06-14
申请号：US16527527
申请日：2019-07-31
申请人： NIDEK CO., LTD.
摘要： An OCT apparatus includes an OCT optical system that has a light splitter splitting light from an OCT light source to light travelling to a measurement light path and light travelling to a reference light path and a detector detecting a spectrum interference signal of measurement light guided to a subject eye through the measurement light path and reference light from the reference light path, and a processing unit that processes the spectrum interference signal to generate OCT data. The processing unit performs at least complementary processing on an overlapping region of a real image and a virtual image in OCT data based on a plurality of OCT data obtained with different optical path lengths when detecting the spectrum interference signal, and generates OCT data subjected to the complementary processing.
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公开(公告)号：US11508062B2
公开(公告)日：2022-11-22
申请号：US16830936
申请日：2020-03-26
申请人： NIDEK CO., LTD.
发明人： Ryosuke Shiba , Yoshiki Kumagai , Naoto Honda , Kenshiro Fujiu , Yuji Murase , Shohei Ito
摘要： An ophthalmological image processing apparatus acquires a plurality of images of a subject eye photographed in a scanning-type imaging optical system, sets any one of the plurality of images as a template, sets corresponding points or corresponding regions between an image of the subject eye and the template at a plurality of positions of each of the image of the subject eye and the template, calculates a movement amount of each of the corresponding points or each of the corresponding regions, and corrects a distortion of the image of the subject eye with respect to the template based on the movement amount of each of the corresponding points or each of the corresponding regions.
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公开(公告)号：US20200245858A1
公开(公告)日：2020-08-06
申请号：US16778257
申请日：2020-01-31
申请人： NIDEK CO., LTD.
摘要： A processor of an ophthalmologic image processing device acquires an ophthalmologic image photographed by an ophthalmologic image photographing device. The processor inputs the ophthalmologic image into a mathematical model trained by a machine learning algorithm to acquire a result of an analysis relating to at least one of a specific disease and a specific structure of a subject eye. The processor acquires information of a distribution of weight relating to an analysis by a mathematical model, as supplemental distribution information, for which an image area of the ophthalmologic image input into the mathematical model is set as a variable. The processor sets a part of the image area of the ophthalmologic image, as an attention area, based on the supplemental distribution information. The processor acquires an image of a tissue including the attention area among a tissue of the subject eye and displays the image on a display unit.
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公开(公告)号：US11633096B2
公开(公告)日：2023-04-25
申请号：US16778257
申请日：2020-01-31
申请人： NIDEK CO., LTD.
摘要： A processor of an ophthalmologic image processing device acquires an ophthalmologic image photographed by an ophthalmologic image photographing device. The processor inputs the ophthalmologic image into a mathematical model trained by a machine learning algorithm to acquire a result of an analysis relating to at least one of a specific disease and a specific structure of a subject eye. The processor acquires information of a distribution of weight relating to an analysis by a mathematical model, as supplemental distribution information, for which an image area of the ophthalmologic image input into the mathematical model is set as a variable. The processor sets a part of the image area of the ophthalmologic image, as an attention area, based on the supplemental distribution information. The processor acquires an image of a tissue including the attention area among a tissue of the subject eye and displays the image on a display unit.
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公开(公告)号：US20210290050A1
公开(公告)日：2021-09-23
申请号：US17132190
申请日：2020-12-23
申请人： NIDEK CO., LTD.
发明人： Ryosuke SHIBA , Yoshiki Kumagai , Masayuki Yoshino
摘要： An ocular fundus image processing apparatus acquires a fundus image of an subject eye which is captured by a fundus capturing apparatus, acquires a correction image including artifact caused by illumination light without including a fundus of the subject eye as a capturing target, executes conversion processing of the correction image a plurality of times while changing processing content to acquire a plurality of conversion images, and acquires a difference image, as high-quality images, in which an influence of the artifact is suppressed to be less than or equal to a criterion, among a plurality of difference images acquired by taking a difference between each of the plurality of conversion images and the fundus image.
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6.发明申请公开(公告)号：US20230000348A1
公开(公告)日：2023-01-05
申请号：US17852490
申请日：2022-06-29
申请人： NIDEK CO., LTD.
发明人： Yoshiki Kumagai , Ryosuke Shiba
摘要： An ophthalmic image processing apparatus includes a processor. The processor acquires a first image as a color fundus image, and corrects a pixel value of at least any color component in the first image, based on color gamut information for specifying a predetermined color gamut to be applied to a color fundus image, to generate a color gamut-corrected image.
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公开(公告)号：US11357398B2
公开(公告)日：2022-06-14
申请号：US16482443
申请日：2018-01-30
申请人： NIDEK CO., LTD.
摘要： An image processing device processes an image of a subject eye. The image processing device includes an image acquisition unit that acquires an image of the subject eye, a diagnosis unit that obtains a diagnosis result of the subject eye based on the image acquired by the image acquisition unit, and a display control unit that changes a display mode of a display unit based on the diagnosis result.
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公开(公告)号：US11602276B2
公开(公告)日：2023-03-14
申请号：US16833723
申请日：2020-03-30
申请人： NIDEK CO., LTD.
发明人： Yoshiki Kumagai , Ryosuke Shiba
摘要： A target image to be corrected is generated by arranging partial images acquired by scanning a tissue of a living body with light and temporally continuously receiving the light from the tissue. A processor of a medical image processing device performs detecting position shift amounts, acquiring a component, and correcting. In the process of detecting position shift amounts, the processor detects the position shift amounts between the partial images (S3). In the process of acquiring, the processor acquires an assumed result of at least one of a component in the position shift amount caused by movement of the tissue, and a component in the position shift amount caused by a shape of the tissue (S4). In the process of correcting, the processor corrects a position of each of the partial images based on the component in the position shift amount (S7).
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