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公开(公告)号：US11937986B2
公开(公告)日：2024-03-26
申请号：US17241978
申请日：2021-04-27
发明人： Stefan Saur
IPC分类号： G06T7/00 , A61B90/20 , G06F18/24 , G06V10/764 , G06V10/774 , G06V10/778 , G16H20/40 , G16H30/20 , G16H30/40
CPC分类号： A61B90/20 , G06F18/24 , G06T7/0014 , G06V10/764 , G06V10/774 , G06V10/7784 , G16H20/40 , G16H30/20 , G16H30/40 , G06T2207/10056 , G06T2207/30004 , G06T2207/30168 , G06V2201/03
摘要： A method for acquiring annotated data with the aid of surgical microscopy systems comprises obtaining desired criteria which are intended to be satisfied by desired data to be annotated, and storing the set of desired criteria in a plurality of surgical microscopy systems. In each surgical microscopy system, images are then recorded and current criteria which correspond to the recorded images are determined. The current criteria are compared with the desired criteria. If the desired criteria sufficiently correspond to the current criteria, a confirmation is requested from a user as to whether said user would like to annotate data. If the user provides the confirmation, annotations for images are received from the user and stored together with the images.
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公开(公告)号：US11836920B2
公开(公告)日：2023-12-05
申请号：US17206059
申请日：2021-03-18
发明人： Christoph Hauger , Stefan Saur , Gerald Panitz
CPC分类号： G06T7/0014 , A61N1/3606 , G06T7/38 , G16H30/40 , G06T2207/10 , G06T2207/20081 , G06T2207/30016 , G06T2207/30104
摘要： An apparatus for classifying a brain tissue area as functional or non-functional by a stimulation of the brain includes a receiver unit for receiving information about a performed stimulation, a recording device for recording images that represent the brain tissue area, a detection unit for detecting a change in perfusion in the brain tissue area, and a classification unit configured to determine with the information whether there is a correlation between the performed stimulation and the detected change in perfusion, and to classify the brain tissue area as functional or as non-functional. The recording device is an endomicroscope for recording endomicroscopic images of the brain tissue area with a spatial resolution better than 20 μm and a frame rate of at least 0.4 frames per second. The detection unit is configured to detect a change in perfusion based on the positions of certain tissue structures in the recorded images.
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3.发明申请公开(公告)号：US20230057389A1
公开(公告)日：2023-02-23
申请号：US17759356
申请日：2021-01-21
发明人： Hendrik Burwinkel , Holger Matz , Stefan Saur , Christoph Hauger , Nassir Navab
摘要： A computer-implemented method for determining the refractive power of an intraocular lens to be inserted is presented. The method includes generating first training data for a machine learning system on the basis of a first physical model for a refractive power for an intraocular lens and training the machine learning system by means of the first training data generated, for the purposes of forming a first learning model for determining the refractive power. Furthermore, the method includes training the machine learning system, which was trained using the first training data, using clinical ophthalmological training data for forming a second learning model for determining the refractive power and providing ophthalmological data of a patient and an expected position of the intraocular lens to be inserted. Moreover, the method includes predicting the refractive power of the intraocular lens to be inserted by means of the trained machine learning system and the second learning model. In the process, the ophthalmological data provided and the position of the intraocular lens are used as input values for the machine learning system with the second learning model.
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4.发明申请公开(公告)号：US20220125516A1
公开(公告)日：2022-04-28
申请号：US17451383
申请日：2021-10-19
发明人： Stefan Saur
摘要： A generic reference model for a planned operation defines a multiplicity of landmarks that describe the planned operation. State data that describe a specific operation are received, for example by a surgical microscope, while performing a specific operation on the basis of the planned operation. Then the generic reference model is individualized in relation to the specific operation on the basis of the state data by virtue of adapting one or more landmarks of the multiplicity of landmarks to the specific operation.
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公开(公告)号：US11094283B2
公开(公告)日：2021-08-17
申请号：US15957291
申请日：2018-04-19
发明人： Stefan Saur , Marco Wilzbach , Christopher Käsbach
摘要： A method for operating a head-wearable presentation apparatus is provided. The method comprises the steps of: capturing data that are representative of at least one state variable of the head of a person wearing the head-wearable presentation apparatus, evaluating the captured data in order to determine the at least one state variable of the head, and modifying a degree of transparency of at least one playback arrangement of the head-wearable presentation apparatus if the at least one state variable of the head corresponds to a predetermined state variable.
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公开(公告)号：US20200098151A1
公开(公告)日：2020-03-26
申请号：US16584015
申请日：2019-09-26
发明人： Dominik Scherer , Susanne Kohlhammer , Stefan Saur
摘要： A method for correcting a shading in a digital image of a three-dimensional observation object obtained by at least one image sensor of an optical observation device is provided. The three-dimensional observation object is illuminated by illumination light and an intensity distribution, and an inhomogeneity in an image brightness is present in the digital image of the three-dimensional observation object. The method includes ascertaining a topography of the three-dimensional observation object, correcting the inhomogeneity in the image brightness of the digital image based on the topography of the three-dimensional observation object and the intensity distribution of the illumination light. In addition, an optical observation system is provided to perform the method.
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7.发明申请公开(公告)号：US20190294103A1
公开(公告)日：2019-09-26
申请号：US16360915
申请日：2019-03-21
发明人： Christoph Hauger , Stefan Saur
摘要： A visualization system includes an optical recording unit configured to capture optical signals characterizing at least one partial region of an object, a 3D reconstruction unit configured to ascertain spatial data sets, which describe the partial region of the object, based on the captured optical signals, a hologram computational unit configured to ascertain control data for producing a holographic presentation based on the spatial data sets of the partial region of the object, and a visualization unit configured to visualize a holographic presentation of the at least one partial region of the object for a user of the visualization system based on the control data. In addition, a suitable method for producing holographic presentations from optical signals is provided.
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公开(公告)号：US20150346472A1
公开(公告)日：2015-12-03
申请号：US14723162
申请日：2015-05-27
发明人： Stefan Saur , Gerald Panitz , Roland Guckler
CPC分类号： G02B21/0012 , A61B90/20 , G02B21/06 , G02B21/364 , G02B21/367
摘要： A microscope system includes a microscope for generating a microscopic image of an observation region to be examined and a display unit for visualizing the microscopic image. The system further includes a registration unit and an evaluation unit. The registration unit is configured to register the three-dimensional structure of an observation object from available data to the position of the observation object in the observation region. The evaluation unit is configured to calculate a depth preview map of the three-dimensional structure of the observation object from available data and to transmit the depth preview map to the display unit for visualizing the three-dimensional structure in relation to the position of the observation object in the observation region.
摘要翻译： 显微镜系统包括用于产生要检查的观察区域的显微图像的显微镜和用于使显微镜图像可视化的显示单元。 该系统还包括注册单元和评估单元。 注册单元被配置为将观察对象的三维结构从可用数据注册到观察区域中的观察对象的位置。 评估单元被配置为从可用数据计算观察对象的三维结构的深度预览图，并将深度预览图发送到显示单元，用于相对于观察位置可视化三维结构 对象在观察区域。
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公开(公告)号：US11864841B2
公开(公告)日：2024-01-09
申请号：US16732218
申请日：2019-12-31
发明人： Fang You , David Dobbelstein , Stefan Saur
摘要： A method of operating a surgical microscope includes receiving an instruction to move the camera relative to the object, operating a zoom lens to zoom out and displaying images obtained by processing images recorded by the camera such that centers of the displayed images correspond to a target position within the recorded images and such that the magnification of the object displayed in the images is the initial magnification, wherein the target position is displaced within the recorded images relative to the first position, and operating actuators to move the camera.
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10.发明申请公开(公告)号：US20230084284A1
公开(公告)日：2023-03-16
申请号：US17759360
申请日：2021-01-21
发明人： Hendrik Burwinkel , Holger Matz , Stefan Saur , Christoph Hauger
摘要： The invention relates to a computer-implemented method and a corresponding system for a machine-learning-supported determining of refractive power for a measure for correcting the eyesight of a patient. The method involves providing a scan result of an eye, wherein the scan result represents an image of an anatomical structure of the eye. The method also involves supplying the scan result as input data to a first machine-learning system in the form of a convolutional neural network, and using output values of the first machine-learning system as input data for a second machine-learning system in the form of a multi-layer perceptron, and a target refraction value for the second machine-learning system is used as an additional input value for the second machine-learning system. Finally, the method involves determining parameters for the measure for correcting the eyesight of a patient via an immediate and direct cooperation of the first machine-learning system and the second machine-learning system.
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