Patch-Based Principal Component Analysis for Face Recognition

Table 6

Differences (with respect to 2DPCA) in the identifying results with different size of patches and “sorting” strategy.

Patch size (pixel)	Accuracy (%)			Number of more identified images	Number of images failed to be identified
	92.0	2	2	25, 50, 53, 98, 176, 180, 196, 200	49, 83, 84, 114, 160
	93.0	2	2	25, 50, 53, 98, 176, 180, 196, 200	83, 84, 160
	93.5	2	0	25, 42, 50, 53, 98, 176, 180, 196, 200	83, 84, 160
	93.0	1	4	25, 50, 53, 69, 98, 176, 180, 196, 200	49, 83, 84, 160
	93.0	1	2	25, 42, 50, 53, 69, 98, 176, 180, 196, 200	49, 83, 84, 134, 160