Closed surface fitting for segmentation of orthopedic medical image data

    公开(公告)号:US12062183B2

    公开(公告)日:2024-08-13

    申请号:US17435991

    申请日:2020-03-18

    CPC classification number: G06T7/149 G06T7/0012 G06T7/70 G06T2207/30008

    Abstract: Techniques are described for closed surface fitting (CSF). Processing circuitry may determine a plurality of points on a shape, determine a contour, used to determine a shape of an anatomical object, from image information of one or more images of a patient, and determine corresponding points on the contour that correspond to the plurality of points on the shape based on at least one of respective normal vectors projected from points on the shape and normal vectors projected from points on the contour. The processing circuitry may generate a plurality of intermediate points between the points on the shape and the corresponding points on the contour, generate an intermediate shape based on plurality of intermediate points, and generate a mask used to determine the shape of the anatomical object based on the intermediate shape.

    PLANNING SYSTEM FOR ORTHOPEDIC SURGICAL PROCEDURES

    公开(公告)号:US20220059213A1

    公开(公告)日:2022-02-24

    申请号:US17413453

    申请日:2019-12-11

    Abstract: A surgical planning system for use in surgical procedures to repair an anatomy of interest includes a preplanning system to generate a virtual surgical plan and a mixed reality system that includes a visualization device wearable by a user to view the virtual surgical plan projected in a real environment. The virtual surgical plan includes a 3D virtual model of the anatomy of interest. When wearing the visualization device, the user can align the 3D virtual model with the real anatomy of interest, thereby achieving a registration between details of the virtual surgical plan and the real anatomy of interest. The registration enables a surgeon to implement the virtual surgical plan on the real anatomy of interest without the use of tracking markers.

    CLOSED SURFACE FITTING FOR SEGMENTATION OF ORTHOPEDIC MEDICAL IMAGE DATA

    公开(公告)号:US20220156942A1

    公开(公告)日:2022-05-19

    申请号:US17435991

    申请日:2020-03-18

    Abstract: Techniques are described for closed surface fitting (CSF). Processing circuitry may determine a plurality of points on a shape, determine a contour, used to determine a shape of an anatomical object, from image information of one or more images of a patient, and determine corresponding points on the contour that correspond to the plurality of points on the shape based on at least one of respective normal vectors projected from points on the shape and normal vectors projected from points on the contour. The processing circuitry may generate a plurality of intermediate points between the points on the shape and the corresponding points on the contour, generate an intermediate shape based on plurality of intermediate points, and generate a mask used to determine the shape of the anatomical object based on the intermediate shape.

    SOFT TISSUE STRUCTURE DETERMINATION FROM CT IMAGES

    公开(公告)号:US20220054195A1

    公开(公告)日:2022-02-24

    申请号:US17413444

    申请日:2019-12-11

    Abstract: A surgical planning system for use in surgical procedures to repair an anatomy of interest includes a preplanning system to generate a virtual surgical plan and a mixed reality system that includes a visualization device wearable by a user to view the virtual surgical plan projected in a real environment. The virtual surgical plan includes a 3D virtual model of the anatomy of interest. When wearing the visualization device, the user can align the 3D virtual model with the real anatomy of interest, thereby achieving a registration between details of the virtual surgical plan and the real anatomy of interest. The registration enables a surgeon to implement the virtual surgical plan on the real anatomy of interest without the use of tracking markers.

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