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    COMPACT OPTICAL TRACKER
    1.
    发明申请
    COMPACT OPTICAL TRACKER 有权
    紧凑光学跟踪器

    公开(公告)号：US20150136947A1

    公开(公告)日：2015-05-21

    申请号：US14547542

    申请日：2014-11-19

    Applicant: Elbit Systems Ltd.

    Inventor： Lior BARAK ,  Ron KORNBILT ,  Rani BEN-YISHAI

    IPC: G01S17/66

    CPC classification number: G01S17/66 ,  A61B34/20 ,  A61B2034/2055 ,  G01S5/163 ,  G01S17/023 ,  G01S17/875

    Abstract: An optical tracker is provided herein. The tracker may include at least two optical tracker sensors, facing at least partially each other. Each optical tracker sensor may include: a pixel array sensor configured to generate a pixel-by-pixel stream of values representing a scene; at least one visual indicator physically coupled to said pixel array sensor; and an integrated circuit (IC) physically coupled to said at least one pixel array sensor, and configured to: receive said pixel-by-pixel stream of values; and apply a binary large object (BLOB) analysis to said stream, to yield BLOB parameters indicative of the at least one visual indicator present in the scene in a single pass of the pixels representing the scene; and a computer processor configured to receive said BLOB parameters and calculate a relative position and/or orientation, or a partial data thereof, of the at least two optical tracker sensors.

    Abstract translation: 本文提供光学跟踪器。 跟踪器可以包括至少两个彼此面对的光学跟踪器传感器。 每个光学跟踪器传感器可以包括：像素阵列传感器，被配置为生成表示场景的值的逐像素流; 物理耦合到所述像素阵列传感器的至少一个视觉指示器; 以及物理耦合到所述至少一个像素阵列传感器的集成电路（IC），并且被配置为：接收所述逐个像素的值流; 并且对所述流应用二进制大对象（BLOB）分析，以在表示场景的像素的单次通过中产生指示场景中存在的至少一个视觉指示符的BLOB参数; 以及计算机处理器，被配置为接收所述BLOB参数并且计算所述至少两个光学跟踪器传感器的相对位置和/或取向或其部分数据。

    METHOD AND SYSTEM FOR REGISTRATION VERIFICATION
    2.
    发明申请
    METHOD AND SYSTEM FOR REGISTRATION VERIFICATION 审中-公开

    公开(公告)号：US20200082552A1

    公开(公告)日：2020-03-12

    申请号：US16687360

    申请日：2019-11-18

    Applicant: ELBIT SYSTEMS LTD.

    Inventor： Rani BEN-YISHAI

    IPC: G06T7/33 ,  G06T11/60 ,  G06T7/73 ,  A61B34/10 ,  A61B90/00 ,  A61B34/20

    Abstract: Method for verifying registration of a model of an internal-body-part with the internal-body-part in a reference coordinate system. The internal-body-part is at least partially unseen directly by a user. The method includes the procedures of continuously determining a position and orientation of a head-mounted-display in the reference coordinate system, determining a display location of at least one virtual marker, and displaying the virtual marker according to the display location. The display location of the virtual marker is determined according to the expected position of a respective at least one reference point relative to the head-mounted-display. The reference point is directly visible to the user. The relative position between the reference point and the internal-body-part is substantially constant. The position of the reference point in the reference coordinate system is predetermined. When the model and the internal-body-part are effectively registered, the reference point and corresponding virtual marker appears visually in alignment.

    OPTICAL SEE THROUGH (OST) HEAD MOUNTED DISPLAY (HMD) SYSTEM AND METHOD FOR PRECISE ALIGNMENT OF VIRTUAL OBJECTS WITH OUTWARDLY VIEWED OBJECTS
    3.
    发明申请
    OPTICAL SEE THROUGH (OST) HEAD MOUNTED DISPLAY (HMD) SYSTEM AND METHOD FOR PRECISE ALIGNMENT OF VIRTUAL OBJECTS WITH OUTWARDLY VIEWED OBJECTS 有权

    公开(公告)号：US20250021159A1

    公开(公告)日：2025-01-16

    申请号：US18783139

    申请日：2024-07-24

    Applicant: ELBIT SYSTEMS LTD

    Inventor： Rani BEN-YISHAI ,  Gil BENESH

    IPC: G06F3/01 ,  G02B27/01

    Abstract: A method for irradiating an image in an optical see-through (OST) head mounted display (HMD) for viewing through, the OST HMD by a user's eye, an object having at least one of known orientation and position and orientation (O/P&O), associated with a first reference frame, the method comprising: generating and irradiating said image for appearing to said user superimposed in an aligned manner to said object, according to predetermined information, eyeball feature position data, and said O/P&O; said predetermined information relates correction data with a plurality of different respective position data values of at least one eyeball feature position of said eye; said predetermined information further includes display corrections of said electro-optical display module with respect to said position data values of said at least one eyeball feature position, with respect to a second reference frame; and said O/P&O is between said second reference and said first reference frame.

    OPTICAL SEE THROUGH (OST) HEAD MOUNTED DISPLAY (HMD) SYSTEM AND METHOD FOR PRECISE ALIGNMENT OF VIRTUAL OBJECTS WITH OUTWARDLY VIEWED OBJECTS
    4.
    发明公开
    OPTICAL SEE THROUGH (OST) HEAD MOUNTED DISPLAY (HMD) SYSTEM AND METHOD FOR PRECISE ALIGNMENT OF VIRTUAL OBJECTS WITH OUTWARDLY VIEWED OBJECTS 审中-公开

    公开(公告)号：US20240220012A1

    公开(公告)日：2024-07-04

    申请号：US18557618

    申请日：2021-04-27

    Applicant: ELBIT SYSTEMS LTD

    Inventor： Rani BEN-YISHAI ,  Gil BENESH

    IPC: G06F3/01 ,  G02B27/01

    CPC classification number: G06F3/013 ,  G02B27/0172

    Abstract: A method for irradiating an image in an optical see-through (OST) head mounted display (HMD) for viewing through, the OST HMD by a user's eye, an object having at least one of known orientation and position and orientation (O/P&O), associated with a first reference frame, the method comprising: generating and irradiating said image for appearing to said user superimposed in an aligned manner to said object, according to predetermined information, eyeball feature position data, and said O/P&O; said predetermined information relates correction data with a plurality of different respective position data values of at least one eyeball feature position of said eye; said predetermined information further includes display corrections of said electro-optical display module with respect to said position data values of said at least one eyeball feature position, with respect to a second reference frame; and said O/P&O is between said second reference and said first reference frame.

    HEAD WEARABLE DISPLAY RELIABILITY VERIFICATION
    5.
    发明申请
    HEAD WEARABLE DISPLAY RELIABILITY VERIFICATION 审中-公开

    公开(公告)号：US20190129177A1

    公开(公告)日：2019-05-02

    申请号：US16095380

    申请日：2017-04-20

    Applicant: Elbit Systems Ltd.

    Inventor： Yaniv ROIMI ,  Rani BEN-YISHAI

    IPC: G02B27/01 ,  G06F3/01 ,  G02B27/00 ,  G09G3/00

    Abstract: Head wearable display (HWD) systems and methods of display reliability verification with respect to the HWD operated by a user are provided, which comprise tracking a position and orientation (P&O) of the HWD relative to hardware element(s) at known position(s), which are selected from a surroundings of the user and are visible to the user through the HWD, calculating position(s) of the hardware element(s) with respect to the HWD, and displaying, in the HWD and according to the calculated position(s), verification symbol(s) that correspond to the hardware element(s). Display reliability verification may be carried out automatically using a camera and an image processing module, optionally with an additional illuminator, which compares the element(s)'s captured locations with the element (s)'s expected location according to the tracking, and indicates possible discrepancies. Discrepancy identification may be used to initiate a correction process or to indicate the presented symbology to be unreliable.

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