In the following table you can read at which frame number a tracker failed.

nnbmic= thick blue line
bmic= thin red line
esm= green line

		normal light		diffuse light
		nnbmic	bmic	esm	nnbmic	bmic	esm
very slow	X	X	X	X	X	X
slow		X	X	X	X	X	X
medium		X	X	X	X	X	X
fast		X	X	X	X	X	X
very fast	X	X	X	X	406	X
increasing	X	X	X	X	X	X