Calibrating apparatus

1. A calibrating apparatus, comprising:

a first reproducer which reproduces a reference image representing a state in which a plane is overlooked, along an X axis and a Y axis orthogonal to each other;

a second reproducer which reproduces a scene image outputted from a camera that captures the plane, along a U axis and a V axis orthogonal to each other;

an acceptor which accepts a designating manipulation of designating a first area of an X-Y coordinate system, in association with a reproducing process of said first reproducer;

a first calculator which calculates a second area of a U-V coordinate system corresponding to the first area designated by the designating manipulation by referring to a calibration parameter indicating a corresponding relationship between the X-Y coordinate system and the U-V coordinate system; and

a definer which defines the second area calculated by the first calculator, in association with a reproducing process of said second reproducer.

2. A calibrating apparatus according to claim 1 , wherein the designating manipulation is equivalent to a manipulation of defining the first area on the reference image reproduced by said first reproducer, and said definer defines the second area on the scene image reproduced by said second reproducer.

3. A calibrating apparatus according to claim 1 , wherein said first calculator includes a coordinate specifier which specifies reference coordinates of the first area, and a coordinates transformer which transforms the reference coordinates specified by said coordinate specifier into reference coordinates of the second area.

4. A calibrating apparatus according to claim 1 , wherein the designating manipulation is equivalent to a manipulation of designating the first area, corresponding to each of one or at least two devices arranged in a space partitioned by the plane.

5. A calibrating apparatus according to claim 4 , wherein each of the one or at least two devices is equivalent to an air conditioning device, said calibrating apparatus further comprising a controller which executes air conditioning control by referring to a disposition of the second area calculated by said first calculator.

6. A calibrating apparatus according to claim 1 , further comprising:

a first acceptor which accepts a first designating manipulation of designating a plurality of X-Y coordinates on an image representing the plane reproduced along the X axis and the Y axis;

a second acceptor which accepts a second designating manipulation of designating a plurality of U-V coordinates on a scene image reproduced by said second reproducer; and

a calculator which calculates the calibration parameter based on the plurality of X-Y coordinates designated by the first designating manipulation and the plurality of U-V coordinates designated by the second designating manipulation.

7. A calibrating apparatus according to claim 4 , further comprising:

a first acceptor which accepts a first designating manipulation of designating a plurality of X-Y coordinates on an image representing the plane reproduced along the X axis and the Y axis;

a second acceptor which accepts a second designating manipulation of designating a plurality of U-V coordinates on a scene image reproduced by said second reproducer; and

a calculator which calculates the calibration parameter based on X-Y coordinates at positions of the one or at least two devices, one or at least two X-Y coordinates designated by the first designating manipulation, and the plurality of U-V coordinates designated by the second designating manipulation.

8. A calibrating apparatus according to claim 4 , further comprising:

a second acceptor which accepts a second designating manipulation of designating a plurality of U-V coordinates on a scene image reproduced by said second reproducer; and

a calculator which calculates the calibration parameter based on X-Y coordinates at positions of a plurality of devices and a plurality of U-V coordinates designated by the second designating manipulation.