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Current location:Home > Core Technologies > Fingerprint Recognition Technology
Fingerprint Recognition Technology
  Fingerprint recognition mainly refers to identify or confirm a individual's identity by pattern and features of fingerprint. Everyone's skin lines (grains) includes fingerprint are different on pattern, breakpoint and intersection. Based on these features, we could match someone with its fingerprint and compare its fingerprint with the saved fingerprint data to verify its real identity. This is so called fingerprint recognition technology
How Does Fingerprint Recognition Work?
  There are two ways to process the fingerprint recognition, one is by manual work, another is by automated algorithm software. Now most fingerprint recognition we mentioned is automated algorithm software recognition.

  Different from the  manual fingerprint recognition,  Most biometric companies do not store fingerprint image directly ( Because many country regard fingerprint as personal privacy),but use fingerprint algorithm to obtain the minutiate features of a fingerprint, then create a fingerprint template data by fingerprint algorithm automatically. After that fingerprint algorithm software can do 1:1 or 1:N fingerprint verification on embedded system or online system.

Types of Fingerprint Sensor
  There are two types of fingerprint sensors are widely used in different industries
         A. Optical Fingerprint Sensor 
         B. Capacitive Fingerprint Sensor

   Optical Fingerprint Sensor 
     Optical fingerprint sensor is most widely used and most reliable fingerprin sensor which already be proved by market more than 30 years.  It has a lot of features like abrasion resistant,scratch resistant,strong ability to resist static electricity, high sensitivity,etc.
     Optical fingerprint sensor is based on light reflection and refraction.  When put finger on the glass prism of optical fingerprint sensor, the finger will under irradiation of built-in light source, light emitting from bottom to glass prism and pass through the prism glass to the finger. As fingerprint's pattern line is uneven, the light reflect from fingerprint will become different. When it reflect to built-in CMOS or CCD. The device can obtain the fingerprint image . then we can create a fingerprint template data by fingerprint algorithm automatically. After that fingerprint algorithm software can do 1:1 or 1:N fingerprint verification on embedded system or online system.    
    Capacitive Fingerprint Sensor 
    Capacitive fingerprint sensor is developed in recently years, it has the feature of small size,good performance with dry or wet finger,etc
    Instead of creating a traditional image of a fingerprint, capacitive fingerprint scanners use arrays tiny capacitor circuits to collect data about a fingerprint. As capacitors can store electrical charge, connecting them up to conductive plates on the surface of the scanner allows them to be used to track the details of a fingerprint. The charge stored in the capacitor will be changed slightly when a finger’s ridge is placed over the conductive plates, while an air gap will leave the charge at the capacitor relatively unchanged. An op-amp integrator circuit is used to track these changes, which can then be recorded by an analogue-to-digital converter. Then we can get a fingerprint image. then we can create a fingerprint template data by fingerprint algorithm automatically. After that fingerprint algorithm software can do 1:1 or 1:N fingerprint verification on embedded system or online system.    

Advantages of CAMABIO Fingerprint Technology
    CAMABIO is one of pioneer and core technology provider in fingerprint recognition industry in China.  With more than 10 years fingerprint technology R&D and manufacturing experience, CAMABIO fingerprint product was trusted by many branded customers.   Based on CAMABIO core fingerprint algorithm technology, CAMABIO develop many products like fingerprint module, fingerprint doorl lock solutions, identity verification system for Bank ESCROW, biometric gun safe solution, community security system and solution,etc. 

    Simply to day CAMABIO can provide full set of fingerprint technology from module, fingerprint technology solution to finished fingerprint recognition product.
    Except above advantage, CAMABIO also have following advantages
        1. Unique Optical and image proccess technology
        2. Unique technology to against residual fingerprint unlock and interference problem
        3. Unique technology to against the fake fingerprint 

     With above technology advantages, CAMABIO won the trust from millions users all over the world . 


    
 
   






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