{"id":29277,"date":"2022-10-25T10:33:17","date_gmt":"2022-10-25T10:33:17","guid":{"rendered":"https:\/\/zaratechs.com\/?p=29277"},"modified":"2022-10-25T10:33:17","modified_gmt":"2022-10-25T10:33:17","slug":"digital-fingerprint-reader","status":"publish","type":"post","link":"https:\/\/zaratechs.com\/digital-fingerprint-reader\/","title":{"rendered":"Digital fingerprint reader"},"content":{"rendered":"\n
A fingerprint reader was until recently quite an exotic technology in the real world, where we watched futuristic movies with this type of device. In recent years, however, scanners have started to appear everywhere: high-security buildings, mobile phones, office entrances, and even on PC keyboards.<\/p>\n\n\n\n
Fingerprints are a unique marker for each person. While two prints may look basically the same, advanced software can spot clear, distinct differences.<\/p>\n\n\n\n
In this article, we will talk more about the fingerprint scanner and the different types that there are.<\/p>\n\n\n\n
Fingerprint sensors are electronic devices that allow us to identify our finger prints. This process is mainly composed of reading, saving and identifying the fingerprint. Each footprint of our fingers are different from each other, and of course, different from any other person.<\/p>\n\n\n\n
A fingerprint scanner system has two basic functions. On the one hand, it needs to obtain an image of your finger, and on the other hand, it needs to determine if the pattern of ridges and valleys in that image matches the pattern of ridges and valleys in previously scanned and saved images.<\/p>\n\n\n\n
Fingerprint scanning is a form of physiological biometrics that analyzes your physical characteristics to authenticate your identity. Basically, it acknowledges that your digital footprint belongs to you and no one else.<\/p>\n\n\n\n
We all have unique identification marks on our fingers that are used to create a fingerprint. These cannot be changed or deleted, so they are a good indicator of identity for security procedures.<\/p>\n\n\n\n
Keep in mind that some scanners rely on light, some on electricity, and some on sound to map the ridges and valleys of your fingers.<\/p>\n\n\n\n
Within the different types of biometric scanner we find several types of fingerprint reader:<\/p>\n\n\n\n
Optical scanners take a visual image of the fingerprint using a digital camera. The set of pixels form an image of the scanned scene (in this case, a finger). Subsequently, the captured fingerprint is compared with the registered fingerprints.<\/p>\n\n\n\n
Capacitive or CMOS scanners use capacitors and thus form an image of the fingerprint through electrical current. This type of scanner tends to excel in terms of accuracy. These types of scanners are usually more compact than optical devices.<\/p>\n\n\n\n
Ultrasound fingerprint scanners use high-frequency sound waves to penetrate the epidermal (outer) layer of the skin. The waves are then reflected back to the sensor which are then analyzed to create a digital image of the fingerprint.<\/p>\n\n\n\n
Finally, thermal scanners detect temperature differences at the contact surface, between the ridges and troughs of fingerprints.<\/p>\n\n\n\n
After looking at the different types of fingerprint sensors, we are going to see what advantages fingerprint scanners have over other systems. Below we name a series of them.<\/p>\n\n\n\n