Camera Calibration Parameters into Artoolkit.

Hi All-

I am experimenting with different forms of camera calibration.

How can I translate the following set of camera calibration parameters into
an ARToolKit binary camera calibration file:

The list of internal parameters: 

1. Focal length: The focal length in pixels is stored in the 2x1 vector fc. 
2. Principal point: The principal point coordinates are stored in the 2x1
vector cc. 
3. Skew coefficient: The skew coefficient defining the angle between the x
and y pixel axes is stored in the scalar alpha_c. 
4. Distortions: The image distortion coefficients (radial and tangential
distortions) are stored in the 5x1 vector kc.

Is there a reference out there which describes exactly what camera
calibration file contains?

Thanks,

Abhilash. 

From:	"Pandya, Abhilash" <apandya@n .....................>	Received:	Apr 23, 2002
To	"'artoolkit@h ..................'" <artoolkit@h ..................>
Subject:	Camera Calibration Parameters into Artoolkit.
Hi All- I am experimenting with different forms of camera calibration. How can I translate the following set of camera calibration parameters into an ARToolKit binary camera calibration file: The list of internal parameters: 1. Focal length: The focal length in pixels is stored in the 2x1 vector fc. 2. Principal point: The principal point coordinates are stored in the 2x1 vector cc. 3. Skew coefficient: The skew coefficient defining the angle between the x and y pixel axes is stored in the scalar alpha_c. 4. Distortions: The image distortion coefficients (radial and tangential distortions) are stored in the 5x1 vector kc. Is there a reference out there which describes exactly what camera calibration file contains? Thanks, Abhilash.