Mobile terminal system and its mobile terminal, vein recognition device

Abstract

A vein identification device is used to identify finger veins. The vein identification device includes a reflector and an infrared camera. The reflector is provided with a reflective surface. The light is irradiated on the finger vein, and the incident beam is transmitted through the finger vein. The incident beam is incident on the reflective surface, and the incident beam is reflected by the reflective surface to form an imaging beam. The imaging beam is incident into the infrared camera to image the finger veins. The incident beam of the above-mentioned vein identification device is different from the propagation direction of the imaging beam, so that the accumulation of light sources, reflectors and infrared cameras in one direction can be avoided, and the thickness of the vein identification device can be reduced. Also provided are a mobile terminal system and a mobile terminal thereof.

Description

technical field

[0001] The invention relates to a biometric identification device, in particular to a mobile terminal system and its mobile terminal, and a vein identification device. Background technique

[0002] Vein recognition is a kind of biometrics. The vein recognition system first obtains the personal vein distribution map through the vein recognition device, extracts the characteristic value from the vein distribution map according to the special comparison algorithm, obtains the images of the finger, palm and back of the hand vein through the infrared camera, and stores the digital image of the vein in the computer system In , the feature values ​​are stored. When comparing veins, take vein images in real time, extract feature values, use advanced filtering, image binarization, and thinning methods to extract features from digital images, compare with vein feature values ​​stored in the host, and use complex matching algorithms to match The vein characteristics a...

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