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    MARKER-BASED SHARED AUGMENTED REALITY SESSION CREATION
    69.
    发明公开
    MARKER-BASED SHARED AUGMENTED REALITY SESSION CREATION 审中-实审

    公开(公告)号：EP4369305A2

    公开(公告)日：2024-05-15

    申请号：EP24167055.3

    申请日：2020-12-23

    申请人： Snap Inc.

    发明人： COWBURN, Piers ,  LI, David ,  MÜLLER SANDVIK, Isac Andreas ,  PAN, Qi ,  ZOHAR, Matan

    IPC分类号： G06T19/00

    CPC分类号： G06F3/011

    摘要： Method for creating marker-based shared augmented reality (AR) session starts with initializing a shared AR session by a first device and by a second device. The first device displays on a display a marker. The second device detects the marker using a camera included in the second device and captures an image of the marker using the camera. The second device determines a transformation between the first device and the second device using the image of the marker. A common coordinate frame is then determined using the transformation, the shared AR session is generated using the common coordinate frame, and the shared AR session is caused to be displayed by the first device and by the second device. Other embodiments are described herein.

    LOCAL AUGMENTED REALITY PERSISTENT STICKER OBJECTS
    70.
    发明公开
    LOCAL AUGMENTED REALITY PERSISTENT STICKER OBJECTS 审中-实审

    公开(公告)号：EP4325432A3

    公开(公告)日：2024-05-08

    申请号：EP23218241.0

    申请日：2017-01-27

    申请人： Snap Inc.

    发明人： LIA, Jia ,  YANG, Jianchao ,  LUO, Linjie ,  XU, Ning ,  SHETH, Rahul Bhupendra

    IPC分类号： G06T7/246

    CPC分类号： G06T2207/2010420130101 ,  G06T7/248 ,  G06T19/006 ,  H04L51/10 ,  H04L51/52

    摘要： Local augmented reality (AR) tracking of AR objects is disclosed. In one example embodiment a device captures a series of video image frames. A user input is received at the device associating a first portion of a first image of the video image frames with an AR sticker object and a target. A first target template is generated to track the target across frames of the video image frames. In some embodiments, global tracking based on a determination that the target is outside a boundary area is used. The global tracking comprises using a global tracking template for tracking movement in the video image frames captured following the determination that the target is outside the boundary area. When the global tracking determines that the target is within the boundary area, local tracking is resumed along with presentation of the AR sticker object on an output display of the device.