Chamber calibration Internal matrix, what do the values represent?
So I did a camera calibration using the checkerboard and Matlab camera calibration dashboard. So the internal matrix I got for this particular session looks like this:
Internal matrix: [349.3601.0.0; 0.349.7267.0; 258,0883,210,5905,1]
I am trying to find the meaning of these values in a matrix but have no success so far.
Can anyone help me?
thank
According to official MATLAB documentation
where fx = F*sx
, fy = F*sy
, F
- the focal distance in world units, usually expressed in millimeters, and [sx, sy]
- the number of pixels per unit of the world in the directions x and y respectively. fx
and fy
are expressed in pixels.