Method and a device for controlling the movement of a line of sight, a videoconferencing system, a terminal and a program for implementing said method
AssigneeFrance Telecom
InventorAdrien Bruno
Life of this patent
Estimating the term…
Abstract
A method of controlling movement of a line of sight of a video camera mounted on a mobile videoconferencing terminal includes: a) a step (72) of using at least two microphones spaced apart from each other in three dimensions and attached to the mobile terminal to pick up a sound uttered by a user of the mobile terminal, b) a step (74) of responding to the signals from the microphones to establish a direction in which the mouth of the user is located, and c) a step (76) of controlling movement of the line of sight as a function of the direction established during step b).
Claims14
A method of controlling movement of a line of sight of a video camera mounted on a mobile videoconferencing terminal, the method comprising:
- f) a step of determining a position of a target area in an image captured by the video camera;
- and
- g) a step of controlling movement of the line of sight as a function of the position determined in step f) so that the target area moves toward a center of the image captured by the camera,
- wherein, upon a determination that the position of the target area cannot be determined during step f),
- a) at least two microphones are used, spaced apart from each other in three dimensions, and attached to the mobile terminal to pick up a sound uttered by a user of the mobile terminal, each of the microphones configured to generate a corresponding signal in response to the sound uttered by the user,
- b) the signals generated by the at least two microphones are responded to in order to establish a direction in which a mouth of the user is located, and
- c) movement of the line of sight is controlled as a function of the direction established during step b).
A device for controlling movement of a line of sight of a video camera mounted on a videoconferencing mobile terminal, comprising:
- at least two microphones spaced apart from each other in space and attached to the mobile terminal for picking up sounds uttered by a user of the mobile terminal;
- a module for responding to the signals from the microphones to establish a direction in which the mouth of the user is located;
- a module for controlling movement of the line of sight as a function of the direction established by the module for responding to the signals from the microphones to establish a direction in which the mouth of the user is located;
- a module (42) for determining a position of a target area in an image captured by the video camera;
- and
- a module (44) for controlling movement of the line of sight as a function of the position determined by the module (42) for determining the position of a target area.
Dependencies are inferred from the claim text.