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    CONTRAST ENHANCEMENT FOR MEDICAL IMAGING
    1.
    发明申请
    CONTRAST ENHANCEMENT FOR MEDICAL IMAGING 审中-公开

    公开(公告)号：WO2022147421A1

    公开(公告)日：2022-07-07

    申请号：PCT/US2021/073102

    申请日：2021-12-23

    Applicant: STRYKER CORPORATION

    Inventor： WESTWICK, Paul, Roald ,  LU, Xudong ,  BAILEY, Arthur, E. ,  FENGLER, John, J.,P.

    IPC: A61B5/00 ,  A61B1/04 ,  A61B1/00 ,  G06T5/40

    Abstract: A method of visualizing tissue of a subject includes receiving a fluorescence image of the tissue of the subject, wherein the fluorescence image comprises a plurality of intensity values, a first portion of the intensity values are associated with a first fluorescence emission that is from fluorescence agent that is preferentially accumulated or activated in a target region in the tissue and a second portion of the intensity values are associated with a second fluorescence emission that is from fluorescence agent that is not located within the target region in the tissue; generating an enhanced fluorescence image by reducing one or more of the intensity values that are below a threshold intensity value to increase contrast between the target region in the tissue and areas that are associated with the fluorescence agent that is not located within the target region in the tissue; and displaying the enhanced fluorescence image.

    SYSTEMS AND METHODS FOR LOW-LIGHT IMAGE ENHANCEMENT
    2.
    发明申请
    SYSTEMS AND METHODS FOR LOW-LIGHT IMAGE ENHANCEMENT 审中-公开

    公开(公告)号：WO2022147422A1

    公开(公告)日：2022-07-07

    申请号：PCT/US2021/073103

    申请日：2021-12-23

    Applicant: STRYKER CORPORATION

    Inventor： LU, Xudong

    IPC: H04N5/235 ,  A61B1/00 ,  G06T5/00

    Abstract: A method for enhancing low brightness regions in endoscopic video includes receiving a sequence of video frames captured during an endoscopic procedure; generating a brightness map for each frame of the sequence of video frames, wherein the brightness map is generated based on smoothing regional brightness in the respective frame based on regional brightness gradients, and generating in real-time an enhanced sequence of video frames by adjusting pixel values of each frame of the sequence of video frames based on the brightness map for the respective frame to enhance brightness of low brightness regions of the respective frame; and displaying the enhanced sequence of video frames in real-time.

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