Fitting together pieces of red clothIf you use machine vision to make measurements, then you need to read this short paper. In machine vision, sub-pixel resolution is a major factor in making measurements. While solidly grounded in theory and proven in practice, there are certain assumptions that make it work. These assumptions can be violated with the wrong, yet very typical, setup of a vision system. See how a slight modification in the mounting of a camera might dramatically improve the performance of your vision system.

Notes on Fitting to a Line or Challenges to the Square Root of N: Read the PDF ...