A system is described in which a fingerprint is manually coded by tracing certain ridges and noting events such as ridge endings and ridge beginnings.This code is sent by teleprinter to a central file where a computer identifies the fingerprint by comparing the code with codes previously entered in the file.The scheme for comparing codes is given along with some preliminary test results using typical fingerprints.(Author).

Excerpt from A Semi-Automated Single Fingerprint Identification System A system is described in which a fingerprint is manually coded by tracing certain ridges and noting events such as ridge endings and ridge beginnings. This code is sent by teleprinter to a central file where a computer identifies the fingerprint by comparing the code with codes previously entered in the file. The scheme for comparing codes is given along with some preliminary test results using typical fingerprints. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

A system is described in which a fingerprint is manually coded by tracing certain ridges and noting events such as ridge endings and ridge beginnings.This code is sent by teleprinter to a central file where a computer identifies the fingerprint by comparing the code with codes previously entered in the file.The scheme for comparing codes is given along with some preliminary test results using typical fingerprints.(Author).

A procedure is described for determining whether two fingerprint impressions were made by the same finger.The procedure uses the x and y coordinates and the individual directions of the minutiae (ridge endings and bifurcations).The identity of two impressions is established by computing the density of clusters of points involving the differences in coordinates that are found in going from one of the fingerprint impression to the other.Experimental results using machine-read minutiae data are given along with results from a previously reported procedure that utilized constellations of minutiae in its matching process.(Author).