US 12,299,934 B2
Systems, methods, and apparatus for piggyback camera calibration
Andrew Russell, San Francisco, CA (US); and Robert McIntosh, Marina Del Rey, CA (US)
Assigned to GoPro, Inc., San Mateo, CA (US)
Filed by GoPro, Inc., San Mateo, CA (US)
Filed on Jul. 27, 2022, as Appl. No. 17/815,507.
Prior Publication US 2024/0037793 A1, Feb. 1, 2024
Int. Cl. G06T 7/30 (2017.01); G06T 7/80 (2017.01); H04N 23/68 (2023.01)
CPC G06T 7/85 (2017.01) [H04N 23/685 (2023.01); G06T 2207/20081 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for calibrating a camera system, comprising:
obtaining sensed quaternions from a first camera of the camera system;
obtaining computer vision quaternions from calibration footage shot by a second camera of the camera system;
aligning the sensed quaternions and the computer vision quaternions for a calibration sequence;
comparing the sensed quaternions and the computer vision quaternions to obtain an estimated physical offset quaternion; and
stabilizing unstable footage from the second camera based on a corresponding set of sensed quaternions from the first camera and the estimated physical offset quaternion.