Combining multi-scale composite windows with hierarchical smoothing strategy for fingerprint orientation field computation

Table 2 The distance between the detected deltas and the genuine ones (pixels)

	EG + hierarchical smoothing	GV + hierarchical smoothing	The proposed WMCW + hierarchical smoothing
(5, 10]	17	12	15
(3, 5]	81	72	78
≤ 3	25	41	42

ISSN: 1475-925X