Granted Patent B2

US 8,854,461 · App. 13/353,909 · Granted Oct 7, 2014

Abstract

Claims (39)

1. A method of controlling a camera to photograph a target, the method comprising:

obtaining position information about a plurality of reference points which are positioned around the target;

obtaining panning angles and tilting angles of the camera for the reference points;

obtaining position information about the target from information about the target which is received from a radar device;

obtaining a panning angle and tilting angle of the camera for the target, based on the position information about the reference points, the panning angles and tilting angles of the camera for the reference points, and the position information about the target; and

controlling panning and tilting of the camera based on the panning angle and tilting angle of the camera for the target.

2. The method of claim 1 , wherein the position information comprises position coordinates.

3. The method of claim 1 , wherein the obtained position information about the reference points, and the obtained panning angles and tilting angles of the camera for the reference points are stored in a host device of the camera or in the camera, and

wherein the host device of the camera or a control unit in the camera performs the obtaining the position information about the target, the obtaining the panning angle and tilting angle of the camera for the target, and the controlling the panning and tilting of the camera.

4. The method of claim 1 , further comprising:

obtaining a zoom magnification and a focus value of the camera which correspond to the panning angle and tilting angle of the camera for the target; and

controlling zooming and focusing of the camera based on the zoom magnification and the focus value.

5. The method of claim 1 , wherein the obtaining the panning angle and tilting angle of the camera for the target comprises:

obtaining the panning angle of the camera for the target based on the position information about the reference points, the panning angles of the camera for the reference points, and the position information about the target; and

obtaining the tilting angle of the camera for the target based on the position information about the reference points, the tilting angles of the camera for the reference points, and the position information about the target.

6. The method of claim 1 , wherein the reference points comprise a first reference point and a second reference point,

wherein a horizontal position of the target exists on a horizontal line connecting a horizontal position of the first reference point to a horizontal position of the second reference point in a straight line, and

wherein a vertical position of the target exists on a vertical line connecting a vertical position of the first reference point to a vertical position of the second reference point in a straight line.

7. The method of claim 6 , wherein the obtaining the panning angle of the camera for the target comprises calculating the panning angle of the camera for the target which corresponds to a ratio of a horizontal distance between the first reference point and the horizontal position of the target to a horizontal distance between the first reference point and the second reference point, on the horizontal line.

8. The method of claim 6 , wherein the obtaining the tilting angle of the camera for the target comprises calculating the tilting angle of the camera for the target which corresponds to a ratio of a vertical distance between the first reference point and the vertical position of the target to a vertical distance between the first reference point and the second reference point, on the vertical line.

9. The method of claim 6 , wherein the obtaining the panning angle of the camera for the target comprises calculating the panning angle of the camera for the target which corresponds to a ratio of a horizontal distance between the first reference point and the horizontal position of the target to a horizontal distance between the first reference point and the second reference point, on the horizontal line, and

wherein the obtaining the tilting angle of the camera for the target comprises calculating the tilting angle of the camera for the target which corresponds to a ratio of a vertical distance between the first reference point and the vertical position of the target to a vertical distance between the first reference point and the second reference point, on the vertical line.

10. The method of claim 1 ,

wherein the obtaining the panning angle and tilting angle of the camera for the target is performed using a first reference point and a second reference point, among the reference points, between which a horizontal distance passing through the target is shortest,

wherein a horizontal position of the target exists on a horizontal line connecting a horizontal position of the first reference point to a horizontal position of the second reference point in a straight line, and

wherein the obtaining the panning angle of the camera for the target comprises calculating the panning angle of the camera for the target which corresponds to a ratio of a horizontal distance between the first reference point and the horizontal position of the target to a horizontal distance between the first reference point and the second reference point, on a horizontal line.

11. The method of claim 1 ,

wherein the obtaining the panning angle and tilting angle of the camera for the target is performed using a first reference point and a second reference point, among the reference points, between which a vertical distance passing through the target is shortest,

wherein a vertical position of the target exists on a vertical line connecting a vertical position of the first reference point to a vertical position of the second reference point in a straight line, and

wherein the obtaining the tilting angle of the camera for the target comprises calculating the tilting angle of the camera for the target which corresponds to a ratio of a vertical distance between the first reference point and the vertical position of the target to a vertical distance between the first reference point and the second reference point, on a vertical line.

12. The method of claim 1 ,

wherein the obtaining the panning angle and tilting angle of the camera for the target is performed using a first reference point and a second reference point, among the reference points, between which a horizontal distance passing through the target is shortest, and a third reference point and a fourth reference point, among the reference points, between which a vertical distance passing through the target is shortest,

wherein a horizontal position of the target exists on a horizontal line connecting a horizontal position of the first reference point to a horizontal position of the second reference point in a straight line,

wherein a vertical position of the target exists on a vertical line connecting a vertical position of the third reference point to a vertical position of the fourth reference point in a straight line,

wherein the obtaining the panning angle of the camera for the target comprises calculating the panning angle of the camera for the target which corresponds to a ratio of a horizontal distance between the first reference point and the horizontal position of the target to a horizontal distance between the first reference point and the second reference point, on a horizontal line, and

wherein the obtaining the tilting angle of the camera for the target comprises calculating the tilting angle of the camera for the target which corresponds to a ratio of a vertical distance between the third reference point and the vertical position of the target to a vertical distance between the third reference point and the fourth reference point, on a vertical line.

13. The method of claim 12 , wherein the third reference point coincides with the first reference point, and the fourth reference point coincides with the second reference point.

14. The method of claim 12 , wherein the third reference point coincides with the first reference point.

15. The method of claim 12 , wherein the fourth reference point coincides with the second reference point.

Assignments (9)