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?


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1 answer

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.



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