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Table 3 Mean area, standard deviation (S. D.), and % coefficient of variation (% C.V.) of four pores, taken from fingerprints obtained from the right thumb of four individuals on sticky side of adhesive tape (using method (iii)), recorded on ten consecutive days, show % C. V. to be beyond the normal acceptable level (with 5% confidence level in analytical work), thereby demonstrating that pore area is not a reproducible feature for matching fingerprints

From: Reproducibility of fingerprint microfeatures

Pore Mean area (μm2) S. D. % C. V.
Individual 1 Pore 1 7147.79 3557.90 49.78
Pore 2 8238.88 7253.25 88.04
Pore 3 6927.15 5356.63 77.33
Pore 4 8003.17 4933.09 61.64
Individual 2 Pore 1 3167.00 2218.28 70.04
Pore 2 3103.47 2010.96 64.80
Pore 3 3485.84 2384.84 68.42
Pore 4 4130.92 2794.50 67.65
Individual 3 Pore 1 7618.72 3462.63 45.45
Pore 2 6025.12 3419.02 56.75
Pore 3 3928.39 1744.53 44.41
Pore 4 12262.17 9959.26 81.22
Individual 4 Pore 1 10621.20 7576.13 71.33
Pore 2 6298.58 3936.31 62.50
Pore 3 6909.11 4327.40 62.63
Pore 4 6990.86 3262.38 46.67