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    Targets, fixtures, and workflows for calibrating an endoscopic camera
    11.
    发明授权
    Targets, fixtures, and workflows for calibrating an endoscopic camera 有权

    公开(公告)号：US11252395B2

    公开(公告)日：2022-02-15

    申请号：US16826890

    申请日：2020-03-23

    Applicant: Intuitive Surgical Operations, Inc.

    Inventor： Tao Zhao ,  Wenyi Zhao ,  David D. Scott

    IPC: H04N13/246 ,  G06T7/80 ,  G06K9/46 ,  G01D1/00 ,  G01D15/00 ,  H04N13/239

    Abstract: A calibration target comprises a target pattern plane having a planar surface and a plurality of markers disposed on the planar surface. An optical axis of the imaging system is at a first angle with respect to the planar surface of the target pattern plane when the calibration target is being used to calibrate the imaging system. The plurality of markers is pre-warped in size and aspect ratio using a set of trigonometric functions that use the first angle and a distance from the imaging system to the marker, so that each of the plurality of markers appears a substantially same size as all others of the plurality of markers when viewed by the imaging system at the first angle. The plurality of markers includes a plurality of localizer features that have known relative positions on the target pattern plane and are used to determine an orientation for each marker.

    TARGETS, FIXTURES, AND WORKFLOWS FOR CALIBRATING AN ENDOSCOPIC CAMERA
    12.
    发明申请
    TARGETS, FIXTURES, AND WORKFLOWS FOR CALIBRATING AN ENDOSCOPIC CAMERA 审中-公开

    公开(公告)号：US20200228783A1

    公开(公告)日：2020-07-16

    申请号：US16826890

    申请日：2020-03-23

    Applicant: Intuitive Surgical Operations, Inc.

    Inventor： Tao Zhao ,  Wenyi Zhao ,  David D. Scott

    IPC: H04N13/246 ,  G01D1/00 ,  G06T7/80 ,  G01D15/00 ,  G06K9/46 ,  H04N13/239

    Abstract: The present disclosure relates to calibration assemblies and methods for use with an imaging system, such as an endoscopic imaging system. A calibration assembly includes: an interface for constraining engagement with an endoscopic imaging system; a target coupled with the interface so as to be within the field of view of the imaging system, the target including multiple of markers having calibration features that include identification features; and a processor configured to identify from first and second images obtained at first and second relative spatial arrangements between the imaging system and the target, respectively, at least some of the markers from the identification features, and using the identified markers and calibration feature positions within the images to generate calibration data.

    LOW CAPACITANCE ENDOSCOPIC SYSTEM
    17.
    发明申请
    LOW CAPACITANCE ENDOSCOPIC SYSTEM 有权

    公开(公告)号：US20250089994A1

    公开(公告)日：2025-03-20

    申请号：US18967850

    申请日：2024-12-04

    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

    Inventor： Dominique Brichard ,  Peter M. Herzlinger ,  David D. Scott ,  Klaus Zietlow

    IPC: A61B1/00 ,  A61B5/00 ,  A61B5/02 ,  A61B34/30

    Abstract: An endoscopic system includes a shaft comprising a proximal end portion and a distal end portion; a sensor system; a floating ground element electrically coupled to the sensor system; a power regulator electrically coupled to a power transmission line and to the floating ground element, the power regulator configured to convert ground-referenced power received from an earth ground referenced power source into floating ground element referenced power and to output the floating ground element referenced power through the power transmission line; and a circuit enclosure at least partially enclosing a transceiver circuit and the power regulator, the circuit enclosure being electrically coupled with the floating ground element.

    Low capacitance endoscope system
    18.
    发明授权
    Low capacitance endoscope system 有权

    公开(公告)号：US12171401B2

    公开(公告)日：2024-12-24

    申请号：US17699913

    申请日：2022-03-21

    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

    Inventor： Dominique Brichard ,  Peter M. Herzlinger ,  David D. Scott ,  Klaus Zietlow

    IPC: A61B1/00 ,  A61B5/00 ,  A61B5/02 ,  A61B34/30

    Abstract: An endoscopic system for sensing one or more characteristics at an environment of a worksite comprises a shaft comprising a proximal end portion and a distal end portion; an electrically active sensor system comprising a sensor positioned to sense at least one characteristic of an environment in which the distal end portion of the shaft is located; an electrical power transmission line electrically coupled to the sensor and extending along the shaft, the electrical power transmission line configured to transmit power to the sensor; and a floating ground element electrically isolated from an earth ground and operably coupled to the electrically active sensor system. An overall capacitance between the electrical power transmission line and the floating ground element is greater than an overall capacitance between the floating ground element and earth ground.

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