Patch-Based Principal Component Analysis for Face Recognition

Table 4

Comparison of different patch sizes on recognition accuracy and CPU time on the ORL database and the FERET database.

ORL database					FERET database
Patch size			Accuracy (%)	Time (s)	Patch size			Accuracy (%)	Time (s)
	0	0	87.0	21.553		0	0	75.5	9.175
	0	1	87.5	5.584		0	18	85.0	36.974
	2	2	91.0	7.475		0	8	82.0	12.490
	4	0	89.0	7.835		0	16	84.0	13.793
	2	0	90.0	8.356		0	12	83.0	17.326
	4	2	90.5	8.832		0	18	86.0	30.658
	4	14	86.5	10.076		0	18	79.0	6.855