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公开(公告)号：US11547484B2
公开(公告)日：2023-01-10
申请号：US17064254
申请日：2020-10-06
Applicant: Alcon Inc.
Inventor： Sinchan Bhattacharya , Ramesh Sarangapani
IPC: A61B34/10 , G06T7/62 , G06T7/70 , G16H20/40 , G16H30/20 , G16H50/30 , G16H50/70 , G16H50/20 , G16H30/40 , A61B8/10 , A61F2/16
Abstract: A method and system for selecting an intraocular lens, with a controller having a processor and tangible, non-transitory memory. A plurality of machine learning models is selectively executable by the controller. The controller is configured to receive at least one pre-operative image of the eye and extract, via a first input machine learning model, a first set of data. The controller is configured to receive multiple biometric parameters of the eye and extract, via a second input machine learning model, a second set of data. The first set of data and the second set of data are combined to produce a mixed set of data. The controller is configured to generate, via an output machine learning model, at least one output factor based on the mixed set of data. An intraocular lens is selected based in part on the at least one output factor.
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公开(公告)号：US12033321B2
公开(公告)日：2024-07-09
申请号：US17507644
申请日：2021-10-21
Applicant: Alcon Inc.
Inventor： Sinchan Bhattacharya , Hyo Won Choi , Ramesh Sarangapani , Bryan Stanfill
CPC classification number: G06T7/0012 , A61F9/008 , A61F2009/00851 , G06T2207/10056 , G06T2207/10101 , G06T2207/10132 , G06T2207/20081 , G06T2207/20084 , G06T2207/30041
Abstract: A system and method for augmenting an original OCT (optical coherence tomography) image includes a controller having a processor and a tangible, non-transitory memory on which instructions are recorded. The system includes one or more learning modules selectively executable by the controller. The learning modules are trained by a training network with a training dataset having a plurality of training ultrasound bio-microscopy images and respective training OCT images. Execution of the instructions by the processor causes the controller to obtain the original OCT image, captured through an OCT device. The controller is configured to generate an augmented OCT image based in part on the original OCT image, by executing the (trained) learning modules. The augmented OCT image at least partially extends a peripheral portion of the original OCT image.
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公开(公告)号：US20240138930A1
公开(公告)日：2024-05-02
申请号：US18495561
申请日：2023-10-26
Applicant: Alcon Inc.
Inventor： Ashok Burton Tripathi , Lu Yin , Ramesh Sarangapani
IPC: A61B34/20 , A61F2/16 , G06T7/00 , G06V10/774 , G06V10/776 , G06V10/94 , G06V20/40 , G16H10/60
CPC classification number: A61B34/20 , A61F2/1664 , G06T7/0012 , G06V10/774 , G06V10/776 , G06V10/945 , G06V20/41 , G16H10/60 , A61B2034/2057 , A61B2034/2065 , A61B2090/0805
Abstract: Certain embodiments provide a method of performing ophthalmic surgical procedures. The method includes ingesting and preparing pre-operative data and intra-operative data associated with a patient's eye for further processing. In certain embodiments, the method further includes integrating the pre-operative data and intra-operative data to generate context sensitive data for further processing. The method also includes classifying and annotating the pre-operative data, the intra-operative data, and the context sensitive data. The method also includes extracting one or more actionable inferences from the pre-operative data, the intra-operative data, context sensitive data, and the classified and annotated data. The method further includes triggering, based on the one or more actionable inferences, one or more actions on an imaging system or a surgical system.
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Patent Agency Ranking
公开(公告)号：US20240107135A1
公开(公告)日：2024-03-28
申请号：US18475390
申请日：2023-09-27
Applicant: Alcon Inc.
Inventor： Lu Yin , Vignesh Suresh , Ramesh Sarangapani
Abstract: In certain embodiments, a system, a computer-implemented method, and computer-readable medium are disclosed for light efficient fluorescence imaging. The retina is flashed with broadband light and returned light is imaged after passing through one or more filters, such as notch filers, low-pass filters, and high-pass filters. Images may be captured with a single camera or at least two cameras, one capturing transmitted light from the filter and the other capturing returned light. Images may be combined by subtraction and/or addition to obtain a combined image representing light within a passband whereas no passband filters are used during imaging.
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公开(公告)号：US20240081975A1
公开(公告)日：2024-03-14
申请号：US18464050
申请日：2023-09-08
Applicant: Alcon Inc.
Inventor： Vignesh Suresh , Lu Yin , Ramesh Sarangapani , Tobias Jura Rapoport
CPC classification number: A61F2/16 , A61B34/10 , A61B2034/105 , A61B2034/107
Abstract: Particular embodiments disclosed herein provide an alignment guide for aligning a toric IOL during surgery. An image with a reference axis is obtained, such as from a digital microscope, and processed, such as using an autoencoder, to label alignment marks on the IOL and possibly other features of the IOL. The label is processed, such as using a logistic regression model, to estimate an IOL axis of the IOL intersecting the alignment marks. An output image is generated from the image that has superimposed thereon guides to a surgeon, such as a line representing the IOL axis, a rotation direction indicator, and a number or other representation of a difference between the reference axis and the IOL axis. Tracking of features of the IOL may be performed across multiple images to predict the location of features not represented in a particular image.
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26.发明公开公开(公告)号：US20230334678A1
公开(公告)日：2023-10-19
申请号：US18299029
申请日：2023-04-11
Applicant: Alcon Inc.
Inventor： Lu Yin , Ramesh Sarangapani , Vignesh Suresh
CPC classification number: G06T7/337 , G06T7/11 , G06T7/0014 , G06T7/37 , A61B3/0025 , G06T2207/20084 , G06T2207/10101 , G06T2207/30041 , G06T2207/10012 , G06T2207/20081
Abstract: In certain embodiments, an ophthalmic system and computer-implemented method for performing ophthalmic image registration are described. The ophthalmic image registration includes obtaining a plurality of images of an eye of a user. Within each image of the plurality of images, a segmented region(s) of the eye within the image is determined based on evaluating the image with a neural network(s), and a set of point features of the eye within the segmented region(s) of the eye is determined based on evaluating the image with the neural network(s). A set of transformation information for transforming at least one of the plurality of images is generated based on performing one or more image processing operations on the set of point features within each image of the plurality of images. At least one of the plurality of images is transformed, based on the set of transformation information.
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公开(公告)号：US20230329907A1
公开(公告)日：2023-10-19
申请号：US18299022
申请日：2023-04-11
Applicant: Alcon Inc.
Inventor： Lu Yin , Kongfeng Berger , Ramesh Sarangapani , Vignesh Suresh
CPC classification number: A61F9/007 , A61B3/14 , A61B34/20 , A61B2090/372
Abstract: Certain embodiments provide a method of performing ophthalmic surgical procedures. The method includes ingesting and preparing pre-operative data and intra-operative data associated with a patient's eye for further processing. In certain embodiments, the method further includes integrating the pre-operative data and intra-operative data to generate context sensitive data for further processing. The method also includes classifying and annotating the pre-operative data, the intra-operative data, and the context sensitive data. The method also includes extracting one or more actionable inferences from the pre-operative data, the intra-operative data, context sensitive data, and the classified and annotated data. The method further includes triggering, based on the one or more actionable inferences, one or more actions on an imaging system or a surgical system.
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公开(公告)号：US20210134035A1
公开(公告)日：2021-05-06
申请号：US17077941
申请日：2020-10-22
Applicant: Alcon Inc.
Inventor： Ramesh Sarangapani , Lu Yin
IPC: G06T11/60
Abstract: Systems and methods are presented for providing a vision simulation of a patient who has an eye condition. A composite image representing a real-world scene is obtained. The composite image includes multiple image layers, where each image layer represents objects that are at a particular viewing distance in the real-world scene. A first eye model representing the eye optics of the patient is generated. A second eye model representing the eye optics of a viewer is generated. The second eye model is modified by performing a mathematical function. A simulated image representing the vision of the patient is generated by convolving the first eye model and the modified second eye model with the composite image. In some embodiments, a tone mapping algorithm may also be applied to the simulated image to simulate a nighttime scene.
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