公开(公告)号：US20250054176A1

公开(公告)日：2025-02-13

申请号：US18475720

申请日：2023-09-27

Applicant: Snap Inc.

Inventor： Evangelos Chatzikalymnios ,  Thomas Faeulhammer ,  Ihor Tymchyshyn ,  Daniel Wolf

IPC: G06T7/70 ,  G06T3/40 ,  G06T7/20 ,  G06T7/62 ,  G06V10/25 ,  G06V40/20

Abstract: A device includes a processor, image sensors, and memory storing instructions to obtain images from the sensors and process a first image to identify coordinates of a bounding box around an object. The device processes the area within the first box to determine 2-D positions of landmarks associated with the object, derives first 3-D positions of the landmarks, and determines coordinates of a second box bounding the object in the second image using the 3-D landmark positions. The device processes the area within the second box to determine 2-D positions of landmarks and uses triangulation to derive second 3-D positions of the landmarks. Overall, the device obtains images, detects objects and landmarks, determines 2-D and 3-D positions of landmarks, and triangulates 3-D positions.

公开(公告)号：US20250068228A1

公开(公告)日：2025-02-27

申请号：US18478853

申请日：2023-09-29

Applicant: Snap Inc.

Inventor： Evangelos Chatzikalymnios ,  Thomas Faeulhammer ,  Daniel Wolf ,  Kai Zhou

IPC: G06F1/3287 ,  G06V40/10

Abstract: Examples describe a method performed by an extended reality (XR) device that implements a multi-camera object tracking system. The XR device accesses object tracking data associated with an object in a real-world environment. Based on the object tracking data, the XR device activates a low-power mode of the multi-camera object tracking system. In the low-power mode, a state of the object in the real-world environment is determined by using the multi-camera object tracking system.