Prints: Fingerprint, palmprint, footprint, pores
Empreintes: digitales, palmaires, pores


Fingerprints

Empreinte digitale, impressão digital (portugais), fingerprint (anglais), huella dactilar o huellas digitales (espagnol), linii papilarnych (polonais), impronte digitali (italien), Fingerabdrück (allemand), ...

Basically, a fingerprint is a mark left on a surface by a person's fingertip. We call it also the latent print, because we use also the same word fingerprint to designate directly the marks seen on fingers, toes, palms...

For fingerprint, please go directly to the fingerprint section.


Empreinte palmaire

Palmprint

Friction ridges also exist on the palm, and can be used for authentication, as well as creases.
La paume de la main est aussi formée d'empreintes digitales qui peuvent servir pour l'identification, ainsi que les "lignes de la main".

  • NEC Solutions America Palmprint systems
  • Printrak (Motorola) LSS3000
  • Biometric Parners TPS 300 Touchless Palm Sensor
  • CrossMatch ID2500 (May 2004)
  • Palmprint reader
  • (2006 Oct) Rimax Contactless PalmScan
  • Was also distributed by Datacab group's Contactless Rimax Staff On Time Palm Scan
  • Rimax PalmScan

    Footprint

    In some countries, a footprint of each baby is collected for identification purpose.
    Dans certains pays, l'empreinte du pied des bébés est capturée à des fins d'identification.

    Baby footprint

    Pores

    Position of the pores is also a distinctive features, but requires higher resolution scanner, typically 1000dpi, as a pores is about 60 microns, and regular fingerprint sensors are 500dpi which is 50 microns pitch.
    La position des pores est aussi considérées comme une caractéristiques bien particulière à chaque individu, mais requiert des lecteurs de plus haute résolution, environ 1000 points par pouce, car un pore fait environ 60 microns, et les capteurs d'empreintes digitales habituels font 500 points par pouce, soit un pas de 50 microns.

    There is no commercial systems using pore information for authentication, only some R & D.
    Aucun système commercial n'utilise les pores pour l'identification, c'est resté au niveau de la R & D.

  • Automated system for fingerprint authentication using pores and ridge structure. Jonathan D. Stosz Lisa A. Alyea. SPIE 1994
  • Poroscopy: a method of personal identification revisited
  • (2006) Pores and Ridges: Fingerprint Matching Using Level 3 Features Anil Jain & als.
  • (2008 May) The reliability of fingerprint pore area in personal identification Abhishek Gupta / University of Wolverhampton
  • skin
  • (2014) An interesting article about pores: Hydrochromic conjugated polymers for human sweat pore mapping (Joosub Lee & als).

    Some pores do not produce sweat!
  • active pores