Bio-Well Company
www.bio-well.com
Below you can see various examples of how same finger can be captured.
Pic. 22. 1 – finger is too high so the emission is being cut; 2 – finger is too low, reflection from
the walls & the nail can be seen.
Pic. 23. 3 – finger is skewed; 4 – nail is touching the electrode.
Pic. 24. 5 – too high pressure (inscribed ellipse is too big [depends on the size of the actual
finger]); 6 – finger is rotated (program can't correctly derive where is the top of the finger).