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    DUAL CAMERA HMD WITH REMOTE CAMERA ALIGNMENT
    41.
    发明申请
    DUAL CAMERA HMD WITH REMOTE CAMERA ALIGNMENT 有权

    公开(公告)号：US20220021860A1

    公开(公告)日：2022-01-20

    申请号：US16928162

    申请日：2020-07-14

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Michael BLEYER ,  Christopher Douglas EDMONDS ,  Raymond Kirk PRICE

    IPC: H04N13/128 ,  G03B35/18

    Abstract: Techniques for aligning and stabilizing images generated by an integrated stereo camera pair with images generated by a detached camera are disclosed. A first image is generated using a first stereo camera; a second image is generated using a second stereo camera; and a third image is generated using the detached camera. A first rotation base matrix is computed between the third and first images, and a second rotation base matrix is computed between the third and second images. The third image is aligned to the first image using the first rotation base matrix, and the third image is aligned to the second image using the second rotation base matrix. A first overlaid image is generated by overlaying the third image onto the first image, and a second overlaid image is generated by overlaying the third image onto the second image. The two overlaid images are parallax corrected and displayed.

    USING 6DOF POSE INFORMATION TO ALIGN IMAGES FROM SEPARATED CAMERAS
    42.
    发明申请
    USING 6DOF POSE INFORMATION TO ALIGN IMAGES FROM SEPARATED CAMERAS 有权

    公开(公告)号：US20220020168A1

    公开(公告)日：2022-01-20

    申请号：US17340455

    申请日：2021-06-07

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Raymond Kirk PRICE ,  Michael BLEYER ,  Christopher Douglas EDMONDS

    IPC: G06T7/73 ,  G06T7/80 ,  G06T7/593 ,  H04N13/344 ,  H04N13/296 ,  H04N13/239

    Abstract: Techniques for aligning images generated by an integrated camera physically mounted to an HMD with images generated by a detached camera physically unmounted from the HMD are disclosed. A 3D feature map is generated and shared with the detached camera. Both the integrated camera and the detached camera use the 3D feature map to relocalize themselves and to determine their respective 6 DOF poses. The HMD receives the detached camera's image of the environment and the 6 DOF pose of the detached camera. A depth map of the environment is accessed. An overlaid image is generated by reprojecting a perspective of the detached camera's image to align with a perspective of the integrated camera and by overlaying the reprojected detached camera's image onto the integrated camera's image.

    GEOLOCATION WITH AERIAL AND SATELLITE PHOTOGRAPHY
    43.
    发明申请
    GEOLOCATION WITH AERIAL AND SATELLITE PHOTOGRAPHY 有权

    公开(公告)号：US20210383144A1

    公开(公告)日：2021-12-09

    申请号：US16895979

    申请日：2020-06-08

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Raymond Kirk PRICE ,  Michael BLEYER ,  Evan Gregory LEVINE

    IPC: G06K9/03 ,  G06K9/00 ,  G06K9/20 ,  G06F16/909 ,  G01S19/48

    Abstract: A method of automatically geolocating a visual target. The method comprises operating a flying vehicle in a search region including the visual target. The method further includes affirmatively identifying a visual target in an aerial photograph of the search region captured by the flying vehicle. The method further includes automatically correlating the aerial photograph of the search region to a geo-tagged photograph of the search region, wherein the geo-tagged photograph is labelled with pre-defined geospatial coordinates. Based on such automatic correlation, a geospatial coordinate is determined for the visual target in the search region.

    2D OBSTACLE BOUNDARY DETECTION
    44.
    发明申请
    2D OBSTACLE BOUNDARY DETECTION 审中-公开

    公开(公告)号：US20200334824A1

    公开(公告)日：2020-10-22

    申请号：US16917255

    申请日：2020-06-30

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： Michael BLEYER ,  Yuri PEKELNY ,  Raymond Kirk PRICE

    IPC: G06T7/13 ,  G06F3/01 ,  G06T11/00 ,  G06T7/593

    Abstract: Techniques are provided to dynamically generate and render an object bounding fence in a mixed-reality scene. Initially, a sparse spatial mapping is accessed. The sparse spatial mapping beneficially includes perimeter edge data describing an object's edge perimeters. A gravity vector is also generated. Based on the perimeter edge data and the gravity vector, two-dimensional (2D) boundaries of the object are determined and a bounding fence mesh of the environment is generated. A virtual object is then rendered, where the virtual object is representative of at least a portion of the bounding fence mesh and visually illustrates a bounding fence around the object.

    INFRARED EYE-TRACKING IN HIGH AMBIENT LIGHT CONDITIONS
    45.
    发明申请
    INFRARED EYE-TRACKING IN HIGH AMBIENT LIGHT CONDITIONS 审中-公开

    公开(公告)号：US20190384388A1

    公开(公告)日：2019-12-19

    申请号：US16552338

    申请日：2019-08-27

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Raymond Kirk PRICE ,  Michael BLEYER ,  Denis DEMANDOLX

    IPC: G06F3/01 ,  G02B27/01 ,  G06K9/20 ,  G06K9/00 ,  G02B27/00 ,  G01J1/04

    Abstract: A method for active eye-tracking comprises pulsing on and off a plurality of infrared optical sources configured to emit infrared light with a narrow spectral linewidth toward an eye of a user, such that a pulse-on duration is less than a duration needed to fully thermalize each optical source. One or more shuttered optical sensors are configured to receive infrared light reflected off the eye of the user. The shuttered optical sensors are opened for a detection duration based on the pulse-on duration, the shuttered optical sensors. A conformation of the user's eye is indicated based on infrared light received at the shuttered optical sensor during the detection duration.

    IMAGE ALIGNMENT USING STAGGERED FEATURE EXTRACTION
    48.
    发明公开
    IMAGE ALIGNMENT USING STAGGERED FEATURE EXTRACTION 审中-公开

    公开(公告)号：US20240144496A1

    公开(公告)日：2024-05-02

    申请号：US17978463

    申请日：2022-11-01

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Paul LEE ,  Michael BLEYER ,  Christian Markus MAEKELAE

    IPC: G06T7/33 ,  G06T11/00

    CPC classification number: G06T7/33 ,  G06T11/00 ,  G06T2207/20221

    Abstract: Techniques for performing image alignment between a first image generated by a first camera and a second image generated by a second camera are disclosed. The image alignment is performed using staggered feature extraction in which a set of features are reused to align the second image with the first image. A first set of features are identified from within the first image, and a second set of features, which were previously detected within the second image, are accessed. The second set of features were previously used at least once to perform a previous image alignment operation. A current image alignment operation is performed by using the first set of features and by reusing the second set of features to align the first image with the second image.

    IMAGE SENSING PIXEL CONFIGURATIONS FOR REDUCED SENSOR NOISE
    49.
    发明公开
    IMAGE SENSING PIXEL CONFIGURATIONS FOR REDUCED SENSOR NOISE 审中-公开

    公开(公告)号：US20240056696A1

    公开(公告)日：2024-02-15

    申请号：US18494592

    申请日：2023-10-25

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： Raymond Kirk PRICE ,  Michael BLEYER ,  Christopher Douglas EDMONDS

    IPC: H04N25/671 ,  G06T5/00

    CPC classification number: H04N25/671 ,  G06T5/002

    Abstract: An image sensor configured to capture imagery with mitigated noise includes a plurality of image sensing pixels arranged to form a sensor array. Each image sensing pixel of the plurality of image sensing pixels comprises an active area configured to receive photons to facilitate image capture. Each active area comprises a length and a width. For at least one image sensing pixel of the plurality of image sensing pixels, the length or the width of the active area is smaller than about 80% of a pixel pitch measurement between the at least one image sensing pixel and an adjacent image sensing pixel. A size of the active area relative to the pixel pitch measurement contributes to mitigating sensor noise for the image sensor.

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