NCJ Number
10423
Date Published
1970
Length
34 pages
Annotation
PROCEDURE FOR DETERMINING IF TWO IMPRESSIONS WERE MADE BY THE SAME FINGER BY USING THE X AND Y COORDINATES AND THE INDIVIDUAL DIRECTIONS OF THE MINUTIAE.
Abstract
THE MINUTIAE CONSIST OF RIDGE ENDINGS AND BIFURCATIONS. THE IDENTITY OF TWO IMPRESSIONS IS ESTABLISHED BY COMPUTING THE DENSITY OF CLUSTERS OF POINTS IN DELTA-X DELTA-Y SPACE WERE DELTA-X AND DELTA-Y ARE THE DIFFERENCES IN COORDINATES THAT ARE FOUND IN GOING FROM ONE OF THE FINGERPRINT IMPRESSIONS 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 ABSTRACT)