US 11,902,499 B2
Simulation sighting binoculars, and simulation system and methods
Hervé Biran, Elancourt (FR); and Christophe Lartillot, Elancourt (FR)
Assigned to Airbus Defence and Space SAS, Toulouse (FR)
Appl. No. 17/782,386
Filed by Airbus Defence and Space SAS, Toulouse (FR)
PCT Filed Nov. 26, 2020, PCT No. PCT/EP2020/083548
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/110538, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 1913797 (FR), filed on Dec. 5, 2019.
Prior Publication US 2023/0009683 A1, Jan. 12, 2023
Int. Cl. H04N 13/344 (2018.01); H04N 13/293 (2018.01); G06T 19/00 (2011.01)
CPC H04N 13/344 (2018.05) [G06T 19/006 (2013.01); H04N 13/293 (2018.05)] 16 Claims
OG exemplary drawing
 
1. Simulation sighting binoculars comprising a camera, a screen, a pair of lenses which are arranged to face the screen, and electronic circuitry which is configured to:
obtain a video frame from the camera, the video frame being intended to be displayed by the simulation sighting binoculars in a projection window E3;
obtain geolocation information for the simulation sighting binoculars and orientation information for the camera;
transmit the geolocation and orientation information to a simulation platform;
receive simulation graphical elements and spatial positioning information for three-dimensional virtual objects corresponding to the simulation graphical elements;
carry out a two-dimensional rendering of the virtual objects depending on the positioning information, in order to display the virtual objects in a projection window E2, and, when a magnification factor is to be applied, keep dimensions of the projection window E2 fixed and adjust a field of view of the two-dimensional rendering according to the magnification factor;
superimpose, in a virtual scene which is local to the simulation sighting binoculars, the two-dimensional rendering of the virtual objects in the projection window E2 and the video frames in the projection window E3, the projection window E3 being placed in a plane which is farther from the simulation sighting binoculars than the one where the projection window E2 is placed in a field of view of the simulation sighting binoculars, the simulation sighting binoculars having a line of sight which passes through a center of the projection windows E2 and E3, and, when the magnification factor is to be applied, adjust dimensions of the projection window E3 according to the magnification factor;
obtain a mixed-reality stereoscopic image from superimposing the planes using a pair of virtual cameras reproducing binocular vision; and
carry out, on the screen, a right-eye and left-eye display of the obtained mixed-reality stereoscopic image.