different results distance between 2 fiducial

Raphael
2012-08-09
2013-06-12
  • Raphael
    Raphael
    2012-08-09

    My problem is that i get different results when calculating the distance between 2 fiducials that are at a fixed distance.
    More clearly: I have 2 fiducials at fixed distance of 18cm placed on my surface. When they are at the center of the surface the distance is been calculated lets say 0.28 units, but when i place the fiducials at the sides of the surface i get 0.38 units, and these prices differ as i move my fiducials at different areas of my surface.
    I am using a Microsoft Web Cam