An Application of Automated Inkless Fingerprint Imaging Software in Fingerprint Collection and Pattern Analysis

Fingerprint data collections of 684 Thai subjects using a transparent-adhesive tape technique compared with developed software namely an automated inkless fingerprint image which is able to scan fingertips and face images then arrange them in a portable document format prior to printing. Each fingerprint pattern was characterized as arch, radial loop, ulnar loop, and whorl (including double loop whorl, accidental whorl). An index of pattern complexity was constructed by subtracting the number of arches from the number of whorls. Analyses show that (1) finger pattern scores summed over ten fingers of the arch, radial loop, ulnar loop, and whorl are 0.32, 0.17, 4.89, and 4.62 respectively; (2) the index of pattern complexity is 4.30 (S.D.=3.61); (3) fingerprint patterns are statistically different among males and females on the left and right thumbs. The latter technique contributes electronic fingertips and face images which are rapid, large, and clear without dirt from ink/carbon.