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	1706	1706	1724
slow		X	X	X	X	X	X
medium		836	836	X	X	X	X
fast		979	979	990	716	715	732
very fast	773	771	771	752	751	752
increasing				717	708	741