Ethzasl_ptam camera model [closed]

edit

Hi,

I just started working with the ethzasl_ptam stack , and the first thing that got my attention was that the camera model used is really simple.

It just relies on 5 parameters: fx, fy, cx, cy and s.

This means that only 1 parameter is used to model the distortion of the lens. In contrast, OpenCV can use 4, 5 or 8 parameters only to model the distortion.

What can be the impact of using such a simple model? Do you think that it would be possible to improve the matching rate and the accuracy by improving the camera model used?

Regards