公开(公告)号：US20230205311A1

公开(公告)日：2023-06-29

申请号：US18116511

申请日：2023-03-02

Applicant: Snap Inc.

Inventor： Georg Halmetschlager-Funek ,  Matthias kALKGRUBER ,  Daniel Wolf ,  Jakob Zillner

IPC: G06F3/01 ,  G06F3/038 ,  H04L67/131

CPC classification number: G06F3/012 ,  G06F3/038 ,  H04L67/131 ,  G06F2203/0383

Abstract: A method for calibrating a visual-inertial tracking system is described. A device operates the visual-inertial tracking system without receiving a tracking request from a virtual object display application. In response to operating the visual-inertial tracking system, the device accesses sensor data from sensors at the device. The device identifies, based on the sensor data, a first calibration parameter value of the visual-inertial tracking system and stores the first calibration parameter value. The system detects a tracking request from the virtual object display application. In response to the tracking request, the system accesses the first calibration parameter value and determines a second calibration parameter value from the first calibration parameter value.