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    Multi-layer reprojection techniques for augmented reality
    1.
    发明授权
    Multi-layer reprojection techniques for augmented reality 有权

    公开(公告)号：US12299826B2

    公开(公告)日：2025-05-13

    申请号：US17917837

    申请日：2021-05-07

    Applicant: QUALCOMM Incorporated

    Inventor： Vinay Melkote Krishnaprasad ,  Sandeep Kanakapura Lakshmikantha ,  Sagar Ravindra Kalbande ,  Sudipto Banerjee ,  Ajit Venkat Rao

    IPC: G06T19/00

    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for multi-layer reprojection techniques for augmented reality. A display processor may obtain a layer of graphics data including a plurality of virtual objects. Each the plurality of virtual objects may be associated with at least one bounding box of a plurality of bounding boxes. The display processor may further obtain metadata indicative of at least one edge of the at least one bounding box of the plurality of bounding boxes, and metadata corresponding to reprojection instructions associated with each of the plurality of bounding boxes. The display processor may reproject the plurality of virtual objects based on the metadata indicative of the at least one edge of the at least one bounding box and the metadata corresponding to the reprojection instructions.

    Frequency synchronization and phase correction
    3.
    发明授权
    Frequency synchronization and phase correction 有权

    公开(公告)号：US10607572B2

    公开(公告)日：2020-03-31

    申请号：US15968481

    申请日：2018-05-01

    Applicant: QUALCOMM Incorporated

    Inventor： Anand Prabhakar Satpute ,  Sandeep Kanakapura Lakshmikantha ,  Tushit Jain ,  Gwendolyn Denise Barriac ,  Ajit Venkat Rao

    IPC: G06T15/00 ,  G09G5/12

    Abstract: Methods, systems, and devices for frequency synchronization and phase correction at a rendering device are described. One method may include receiving, from a display device (e.g., a head-mounted display (HMD) device), a vertical sync count and an indication of one or more frame repeats. The rendering device may estimate a vertical sync frequency based on the received vertical sync count, and determine a phase corresponding to a minimum frame repeat based on the indication of the one or more frame repeats. The rendering device may adjust a vertical sync frequency to the estimated vertical sync frequency and a phase to the determined phase. The rendering device may transmit one or more frames to the display device using the adjusted frequency and/or the adjusted phase.

    EXTENDED REALITY VIRTUAL ASSISTANT
    7.
    发明申请
    EXTENDED REALITY VIRTUAL ASSISTANT 审中-公开

    公开(公告)号：US20190026936A1

    公开(公告)日：2019-01-24

    申请号：US15655762

    申请日：2017-07-20

    Applicant: QUALCOMM Incorporated

    Inventor： Pushkar Gorur Sheshagiri ,  Pawan Kumar Baheti ,  Ajit Deepak Gupte ,  Sandeep Kanakapura Lakshmikantha

    IPC: G06T15/20 ,  G06T13/40 ,  G06T19/00 ,  G06T7/70

    Abstract: Methods, devices, and apparatuses are provided to facilitate a positioning of an item of virtual content in an extended reality environment. For example, a first user may access the extended reality environment through a display of a mobile device, and in some examples, the methods may determine positions and orientations of the first user and a second user within the extended reality environment. The methods may also determine a position for placement of the item of virtual content in the extended reality environment based on the determined positions and orientations of the first user and the second user, and perform operations that insert the item of virtual content into the extended reality environment at the determined placement position.

    Methods and apparatus for foveated compression
    8.
    发明授权
    Methods and apparatus for foveated compression 有权

    公开(公告)号：US11792420B2

    公开(公告)日：2023-10-17

    申请号：US17073241

    申请日：2020-10-16

    Applicant: QUALCOMM Incorporated

    Inventor： Sandeep Kanakapura Lakshmikantha ,  Shraman Biswas ,  Vinay Melkote Krishnaprasad

    IPC: H04N19/48 ,  H04L43/08

    CPC classification number: H04N19/48 ,  H04L43/08

    Abstract: The present disclosure relates to methods and apparatus for graphics processing. Aspects of the present disclosure can render at least one frame including display content at a server. Aspects of the present disclosure can also downscale the at least one frame including the display content, where a downscaling rate of one or more portions of the at least one frame is based on a location of each of the one or more portions. Moreover, aspects of the present disclosure can communicate the downscaled at least one frame including the display content to a client device. Aspects of the present disclosure can also encode the downscaled at least one frame including the display content. Further, aspects of the present disclosure can decode the encoded at least one frame including the display content. Aspects of the present disclosure can also upscale the at least one frame including the display content.

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