Patent ID: 11954829
Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. A method for videoconferencing with a user by means of the videoconferencing system according to claim 1, comprising the following steps:
receiving N images Iint(k)(tj) transmitted by the remote systems of the interlocutors,
at various display times ti, displaying, with the display screen, an image Ie(ti) containing the images Iint(k)(tj);
determining N target points Pc(k)(tj) each located at the eyes of one interlocutor;
determining N sub-matrices SMimp(k)(tj) of at least one single-pixel imager, said sub-matrices each being centred on one determined target point Pc(k)(tj);
acquiring an image Ic(tj) of the face of the user with the camera at various acquisition times tj;
determining an angular region Za covering an ocular portion Po(tj) of the face of the user containing his eyes;
emitting with the optical source a light beam of wavelength located outside of the visible spectrum and that irradiates the angular region Za;
determining N correction images Ico(k)(tj) on the basis of sub-matrices SMimp(k)(tj) the one or more single-pixel imagers of which collect a part of the emitted light beam reflected by an ocular portion Po(tj) of the face of the user, which ocular portion is located in the angular region Za;
correcting the image Ic(tj) acquired by the camera, by replacing a region depicting the ocular portion Po(tj) with the N correction images Ico(k)(tj), and thus obtaining N corrected images Icc(tj);
transmitting the N corrected images Icc(tj), each to the remote system of the corresponding interlocutor.