Projector device for augmented reality and method for controlling the same
Disclosed are a projector device providing augmented reality and a method for controlling the projector device. The projector device includes a body; a projector disposed in the body and configured to project augmented reality information onto a projected region on a predefined object; a camera disposed on the body to be movable relative to the projector, wherein the camera is configured to measure a distance therefrom to the projected region and to sense an input to a sensed region of a predefined size at the measured distance; and a controller configured to control the projector and the camera, wherein the controller is configured to align the sensed region with the projected region, based on a relative position of the sensed region to the projected region, such that the camera receives the input accurately.
1. A projector device for augmented reality, the device comprising:
a body;
a projector disposed in the body and configured to project augmented reality information onto a projected region on a predefined object;
a camera disposed on the body to be movable relative to the projector, wherein the camera is configured to measure a distance therefrom to the projected region and to sense an input to a sensed region of a predefined size at the measured distance; and
a controller configured to control the projector and the camera,
wherein the controller is configured to align the sensed region with the projected region, based on a relative position of the sensed region to the projected region, such that the camera receives the input accurately.
2. The projector device of claim 1 , wherein the projector is configured to present virtual information and a virtual object related to the object as the augmented reality information and/or to present a virtual interface to control the virtual information and/or the virtual object.
3. The projector device of claim 1 , wherein the projector is configured to have an optical axis tilted towards the camera.
4. The projector device of claim 1 , wherein the camera is configured to sense a motion of a predefined input tool input to the sensed region as the input.
5. The projector device of claim 1 , wherein the camera includes:
a light source configured to irradiate predefined light toward the object; and
a sensor configured to receive the irradiated light reflected from the object.
6. The projector device of claim 1 , wherein the camera and the projector are in a line with a vertical axis of the body.
7. The projector device of claim 1 , wherein the camera is configured to be pivotable about a horizontal axis of the body and relative to the projector.
8. The projector device of claim 1 , wherein the controller is configured to move the sensed region such that an entirety of the sensed region is contained within the projected region.
9. The projector device of claim 1 , wherein the controller is configured to pivot the camera about a horizontal axis of the body by a predefined angle toward the projector such that the sensed region moves to be aligned with the projected region.
10. The projector device of claim 9 , wherein, in order to calculate the angle, the controller is configured to:
determine the relative position of the sensed region to the projected region;
calculate a spacing between the projected region and the sensed region based on the determined relative position; and
calculate the pivoting angle of the camera based on the calculated spacing.
11. The projector device of claim 1 , wherein the body includes:
a base placed on a predefined surface;
a first body mounted to the base and pivotable around a perpendicular axis to the base; and
a second body mounted to the first body and pivotable around about a horizontal axis of the first body.
12. The projector device of claim 11 , wherein the projector and the camera are installed in the second body.
13. The projector device of claim 12 , wherein the projector is immovably fixed to the second body, and the camera is pivotable relative to the projector.