US 12,462,427 B2
Accurate camera-display calibration for telepresence videoconferencing
John D. Perreault, Mountain View, CA (US)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Appl. No. 18/262,813
Filed by GOOGLE LLC, Mountain View, CA (US)
PCT Filed Sep. 1, 2022, PCT No. PCT/US2022/075813
§ 371(c)(1), (2) Date Jul. 25, 2023,
PCT Pub. No. WO2024/049480, PCT Pub. Date Mar. 7, 2024.
Prior Publication US 2024/0338851 A1, Oct. 10, 2024
Int. Cl. H04N 7/15 (2006.01); G06T 7/80 (2017.01); H04N 13/327 (2018.01)
CPC G06T 7/80 (2017.01) [H04N 13/327 (2018.05); G06T 2207/30204 (2013.01); G06T 2207/30244 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving image data representing a plurality of images, each of the plurality of images indicating (i) a specified point in a plane of a mirror held at a respective mirror pose of a plurality of mirror poses with respect to a camera and (ii) a specified point in a virtual image display plane, the virtual image display plane including an image of a display;
determining a position and orientation of the camera in a reference frame of the display based on the specified point in the plane of the mirror and the specified point in the virtual image display plane; and
causing an image on the display to be presented to a user according to the determined position and orientation of the camera.