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Table 2 Mean area, standard deviation (S. D.), and % coefficient of variation (% C.V.) of four pores, taken from fingerprints obtained from the right index finger of four individuals on sticky side of adhesive tape (using method (ii)), 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 11505.31 6446.67 56.03
Pore 2 10051.27 4162.94 41.42
Pore 3 12664.45 4887.05 38.59
Pore 4 9144.70 5016.89 54.86
Individual 2 Pore 1 12725.86 5813.81 45.69
Pore 2 8686.24 3673.15 42.29
Pore 3 6112.12 3937.49 64.42
Pore 4 9261.24 2274.28 24.56
Individual 3 Pore 1 10647.77 6969.79 65.46
Pore 2 7615.40 4021.08 52.80
Pore 3 6960.05 3695.33 53.09
Pore 4 8363.05 5064.20 60.55
Individual 4 Pore 1 8105.30 3300.42 40.72
Pore 2 14496.30 4675.76 32.25
Pore 3 11191.14 5881.19 52.55
Pore 4 7589.88 3472.85 45.76