| 摘要 |
The invention relates to the recognition of digital fingerprints, and more particularly to recognition via a sensor which is shaped as an elongated strip of detectors which can detect the crests and valleys of fingerprints as a finger is scrolled past a sensor in a substantially perpendicular manner in relation to the direction of elongation of said strip. In order to improve recognition security, the finger is scrolled in two opposite directions and verification occurs to ensure that the deformation of the image between said two directions corresponds to a normal deformation given the natural plasticity of the skin.
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