公开(公告)号：US20240329409A1

公开(公告)日：2024-10-03

申请号：US18742166

申请日：2024-06-13

Applicant: Snap Inc.

Inventor： Clemens Birklbauer ,  Georg Halmetschlager-Funek ,  Jeroen Hol ,  Matthias Kalkgruber ,  Daniel Wagner

IPC: G02B27/01 ,  G06F3/01 ,  G06T19/00 ,  H04N13/344

CPC classification number: G02B27/0172 ,  G02B27/0176 ,  G06F3/011 ,  G06F3/017 ,  G06T19/006 ,  H04N13/344 ,  G02B2027/0138 ,  G02B2027/0154 ,  G02B2027/0178

Abstract: An eyewear device with flexible frame for Augmented Reality (AR) is disclosed. At least two sensors and a display are mounted on the flexible frame. When in use, the real time geometry of the eyewear device may change from factory calibrated geometry, resulting in low quality AR rendering. A modeling module is provided to model the real time geometry of the eyewear device on the fly using sensor information of the at least two sensors. The modeled real time geometry is then provided to a rendering module to accurately display the AR to the user.

公开(公告)号：US11688101B2

公开(公告)日：2023-06-27

申请号：US17448655

申请日：2021-09-23

Applicant: Snap Inc.

Inventor： Clemens Birklbauer ,  Georg Halmetschlager-Funek ,  Matthias Kalkgruber ,  Kai Zhou

IPC: G06T7/80 ,  H04N17/00 ,  G06V10/44 ,  H04N23/61 ,  H04N23/65 ,  H04N23/68

CPC classification number: G06T7/80 ,  G06V10/443 ,  H04N17/002 ,  H04N23/61 ,  H04N23/651 ,  H04N23/6812

Abstract: A method for adjusting camera intrinsic parameters of a multi-camera visual tracking device is described. In one aspect, a method for calibrating the multi-camera visual tracking system includes disabling a first camera of the multi-camera visual tracking system while a second camera of the multi-camera visual tracking system is enabled, detecting a first set of features in a first image generated by the first camera after detecting that the temperature of the first camera is within the threshold of the factory calibration temperature of the first camera, and accessing and correcting intrinsic parameters of the second camera based on the projection of the first set of features in the second image and a second set of features in the second image.