Vein, Vascular pattern
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Different part of the body can be used, generally the hand or the finger.
(2006 Oct) Hitachi movie about vein recognition. |
Back of the hand
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Palm /
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Finger
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Wrist
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Extracted vector patterns are used to identify the coordinates of branch points,
and generate a unique vein map signature.
Un squelette du réseau veineux est extrait,
d'où on identifie les emplacements des embranchements qui sert à générer une signature unique.
PosID has proposed (U.S. Patent # 5,351,303) to read the thermal image
of the fingertip using an infrared camera (Merlin camera from Indigo Systems Inc. using
a 320 x 240 microbolometer array and filters optimized for 7- to 8-µm detection).
PosID a proposé (brevet US 5,351,303) de lire l'image thermique du bout du doigt
en utilisant une caméra infra-rouge (caméra Merlin d'Indigo Systems, basée sur une matrice
de 320 x 240 microbolomètres plus un filtre optimisé pour la détection dans la bande des 7 à 8 µm).
(2000) Next step is to integrate a microlens array directly
on a CMOS sensor in order to manufacture a flat sensor.
(2000) La prochaine étape est d'intégrer un reseau de microlentilles directement
sur un capteur CMOS dans l'objectif d'obtenir un capteur plat.
Luminetx proposes a device able to read the vein pattern,
and to project the image directly on the skin, the VeinViewer, which is not directly biometrical recognition
but very close.
(MAY-2006): none / aucun
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No more links as of 2007: |
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VA200 (2005) |
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Livegrip (formerly Advance Biometrics) |
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Spartan Shield Vein Pattern Recognition (VPR) |
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Biometrics visitors