Finger identification apparatus and method

摘要: A slit beam of coherent light is scanned across a flat finger print or fingerpress to provide modulated reflected beam. Fourier transform the projected onto hologram standard character plate. The plate, from which made, contains standardized minutia; specifically, line bifurcations and endings, that are typical surface image. Correspondence between one minutia being in plate results correlation with corresponding on produce An array photocells placed optically downstream hologram. Excitation by beams serves identify type minutia, position angular orientation thereof.