Abstract: The present invention discloses a method of recognizing 3D fingerprints by contact-less optical means. The novel method comprising inter alia the following steps of obtaining an optical contact-less means for capturing fingerprints, such that 3D optical images, selected from a group comprising minutia, forks, endings or any combination thereof are provided; obtaining a plurality of fingerprints wherein the images resolution of said fingerprints is not dependent on the distance between a camera and said inspected finger; correcting the obtained images by mis-focal and blurring restoring; obtaining a plurality of images, preferably 6 to 9 images, in the enrolment phase, under various views and angles; systematically improving the quality of the field depth of said images and the intensity per pixel; and, disengaging higher resolution from memory consumption, such that no additional optical sensor is required.