公开(公告)号：US20230260158A1

公开(公告)日：2023-08-17

申请号：US18009436

申请日：2020-08-10

Applicant: Brainlab AG

Inventor： Sebastian STOPP ,  Johannes MANUS

IPC: G06T7/80 ,  A61B90/20

CPC classification number: G06T7/85 ,  A61B90/20 ,  A61B2034/2065 ,  G06T2207/10056

Abstract: The present disclosure relates to a computer-implemented method for calibrating an optical system of a surgical microscope, a corresponding computer program, a computer-readable storage medium storing such a program and a computer executing the program, as well as a medical system comprising an electronic data storage device and the aforementioned computer. The present disclosure further relates to a computer-implemented method, a computer program and a system for determining the spatial position of an object to be tracked not only via the surgical microscope, but also via a separate detection system. In case a deviation between the detected spatial positions is recognized, the optical system of the surgical microscope is re-calibrated.

公开(公告)号：US20240197435A1

公开(公告)日：2024-06-20

申请号：US18545175

申请日：2023-12-19

Applicant: CARL ZEISS MEDITEC AG ,  BRAINLAB AG

Inventor： Dieter QUENDT ,  Dominik LITSCH ,  Richard BÄUMER ,  Johannes MANUS

IPC: A61B90/00

CPC classification number: A61B90/39 ,  A61B2090/3945 ,  A61B2090/3983

Abstract: A method and a medical optical tracking system, wherein the medical optical tracking system is synchronized with at least one other medical optical tracking system, extraneous light signals of the at least one other optical tracking system are detected by way of a sensor or a camera used for tracking of the optical tracking system, temporal properties of the detected extraneous light signals are determined based on acquired sensor data or acquired camera images, and temporal properties of light signals generated by way of a light source of the optical tracking system and/or a measuring window of the sensor or the camera are defined, on the basis of the determined temporal properties of the extraneous light signals, such that the light signals from the light source and/or the measuring window lie in light signal pauses of the at least one other optical tracking system.

公开(公告)号：US20230054305A1

公开(公告)日：2023-02-23

申请号：US17880914

申请日：2022-08-04

Applicant: Brainlab AG

Inventor： Sebastian STOPP ,  Johannes MANUS

IPC: A61B90/25 ,  A61B34/20 ,  A61B90/00 ,  A61B17/00 ,  G02B27/01

Abstract: The present disclosure relates to an optical observation device which is controlled in a sterility preserving manner, and to a corresponding controlling program and/or program storage medium. The optical observation device includes a main structure having at least one optical camera, a support structure adapted to variably position the main structure, and a control unit that receives a sequence of images from the at least one optical camera, searches a current image from the sequence of images for a trackable object, tracks the trackable object shown in the sequence of images subsequent to the current image; and controls adjustable properties of AR-content superimposed with the sequence of images in accordance with a motion of the trackable object, wherein the adjustable properties of the AR-content include a location, orientation, and/or size of the AR-content with respect to the sequence of images.

公开(公告)号：US20210137632A1

公开(公告)日：2021-05-13

申请号：US16629351

申请日：2018-07-11

Applicant: Brainlab AG

Inventor： Sebastian STOPP ,  Johannes MANUS

IPC: A61B90/25 ,  A61B90/00 ,  A61B34/20 ,  A61B17/00

Abstract: The present application relates to an optical observation device which is controlled in a sterility preserving manner, and to a corresponding controlling program and/or program storage medium. The optical observation device includes a main structure having at least one optical camera, a motorized support for positioning the main structure, and a control unit that receives a sequence of images from the at least one optical camera, searches a current image from the sequence of images for a trackable object, tracks the trackable object shown in the sequence of images subsequent to the current image, and controls the motorized support structure.

公开(公告)号：US20220058829A1

公开(公告)日：2022-02-24

申请号：US17275052

申请日：2019-09-11

Applicant: Brainlab AG

Inventor： Sebastian STOPP ,  Johannes ZÜGNER ,  Johannes MANUS ,  José GARDIAZABAL

IPC: G06T7/80 ,  H04N17/00 ,  G06T7/246 ,  H04N5/232 ,  A61B90/00 ,  A61B34/20 ,  A61B34/00

Abstract: A method of determining a focal length of a camera and/or of adjusting a viewing direction in a graphical representation of a pre-operative image is provided. The method includes providing uncalibrated camera data of a camera, specifying an initial value of a focal length of the camera, specifying a working distance value of a distance between the camera and the at least part of the tracking system, calculating a distance value of the distance between the camera and the at least part of the tracking system based on the uncalibrated camera data and based on the specified initial value of the focal length of the camera, calculating a change factor based on the specified working distance value and the calculated distance value, and calculating an adapted value of the focal length of the camera based on the initial value of the focal length and based on the change factor.