Patent ID: 11902499
Assignee: AIRBUS DEFENCE AND SPACE SAS
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
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.