Professor, Université de Sherbrooke, Sherbrooke, Québec
Professor, Unité de recherche en biophysique appliquée, Département de biophysique, Faculté de médecine, Université de Sherbrooke, Sherbrooke, Québec
(Received 27 June 1983; accepted 26 July 1983)
The intricate line pattern of epidermal ridges in a fingerprint can be transformed into a characteristic interferogram of the moiré type by superimposing a centrosymmetric reference pattern. The interferogram is then dissected automatically into an array of cells whose optical densities are translated into a sequence of binary digits. By this procedure, fingerprints are easily read, filed, and transmitted as well as analyzed, identified, and matched by microcomputers.
Paper ID: JFS11696J