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公开(公告)号：US20220096158A1
公开(公告)日：2022-03-31
申请号：US17298330
申请日：2019-01-31
Applicant: Brainlab AG
Inventor： Sven FLOSSMANN , Sebastian STOPP , Susanne HAGER , Christian SCHMALER , Christoffer HAMILTON
Abstract: Provided is a method that encompasses the determination of a virtual trajectory within a virtual representation of a patient's anatomy, wherein the trajectory is defined by a user's visual axis relative to the three-dimensional virtual representation of the patient's anatomy. The method includes acquiring image data which describes the three-dimensional virtual representation of the patient's body part, acquiring position data which describes a spatial position of a user's visual axis within a virtual-world co-ordinate system, determining visualization data based on the image data and the position data, and determining virtual-world trajectory data based on the position data.
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公开(公告)号：US20230350177A1
公开(公告)日：2023-11-02
申请号：US17791275
申请日：2020-01-08
Applicant: Brainlab AG
Inventor： Stefan VILSMEIER , Sven FLOSSMANN
CPC classification number: G02B21/0012 , G05D3/20 , G06F3/012
Abstract: Provided is a robotic microscope that includes an optical system being moveable in one or more spatial directions and an actuator configured to move the optical system in the spatial directions. The microscope includes a capacitive sensor with an electrode coupled to at least a part of the optical system, the capacitive sensor configured to provide a sensor signal indicative of a capacitance in a vicinity of the electrode. The microscope further includes control circuitry configured to determine, based on processing the sensor signal, at least one capacitance value for the capacitance, and configured to actuate, based on comparing at least one capacitance value with at least one reference value for the capacitance, the actuator to move the optical system such that a distance between a user's head and part of the optical system and/or an orientation of the user's head and part of the optical system is substantially constant.
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公开(公告)号：US20240122650A1
公开(公告)日：2024-04-18
申请号：US18395976
申请日：2023-12-26
Applicant: Brainlab AG
Inventor： Sven FLOSSMANN , Sebastian STOPP , Susanne HAGER , Christian SCHMALER , Christoffer HAMILTON
CPC classification number: A61B34/10 , G06F3/013 , G06T7/0012 , G06T7/20 , G06T7/70 , G06T19/006 , A61B2034/105 , A61B2034/107 , A61B2090/365
Abstract: Provided is a method that encompasses the determination of a virtual trajectory within a virtual representation of a patient's anatomy, wherein the trajectory is defined by a user's visual axis relative to the three-dimensional virtual representation of the patient's anatomy. The method includes acquiring image data which describes the three-dimensional virtual representation of the patient's body part, acquiring position data which describes a spatial position of a user's visual axis within a virtual-world co-ordinate system, determining visualization data based on the image data and the position data, and determining virtual-world trajectory data based on the position data.
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公开(公告)号：US20190357982A1
公开(公告)日：2019-11-28
申请号：US15753127
申请日：2017-08-24
Applicant: Brainlab AG
Inventor： Sven FLOSSMANN
Abstract: The present invention relates to a computer-implemented medical method of determining a spatial position of a medical optical observation device (1), the method comprising executing, on a processor of a computer (2), the steps of: —acquiring position data describing, for a plurality of points in time, the spatial position of the observation device (1) within a co-ordinate system of a medical tracking system (3); —determining, based on the position data, average position data describing an average value for the position of the observation device (1) within the co-ordinate system of the medical tracking system (2); —acquiring image data describing a plurality of images acquired at the plurality of points in time via a camera (4) assigned to the observation device (1) and detecting the field of view (5) of the observation device (1); —determining, based on the image data, optical flow data describing an optical flow for the plurality of images; —determining, based on the average position data and the optical flow data, focal plane position data describing a spatial position of the focal plane (6) of the observation device (1). The present invention further relates to a corresponding computer-program, a corresponding computer storage medium and a corresponding system for determining the spatial position of a medical optical observation device.
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