The finger sensors do not generate enough image quality to identify “one against N”. In general, the quantity and consistency of the biometric samples required is a function of the size of the database that must be searched. The Analogue IP Telephony & VOIP/ PABX Supplier Reseller Kenya is quite useful.
The capture of facial images is carried out using digital market cameras, pocket cameras and webcams. Low-cost sensor technology has been significantly improved recently, also making biometric facial capture via smartphones possible. Traditionally, digital facial images require an eye-to-eye resolution of about 60 pixels for one-to-one verification and 90 pixels for more accurate one-to-several identification. The most critical and challenging factor that affects the performance of the facial matcher is consistency, obtaining consistent pose, head angle and facial expression of the individual, and brightness, contrast and sharpness and lack of background uniformity of the entire image.
Iris biometrics has benefited from significant sensor improvements.
The identification of the iris differs from that of the face because it requires an infrared image of the iris to optimize the contrast of the image and, thus, facilitate the analysis made by machine. The better the purity of the captured infrared image with the minimum of “pollution” from visible light, the better the matching performance will be. This is why the cameras available on the market are not yet used to capture iris images and a special camera is needed, a system should illuminate the iris with infrared light and then filter out other wavelengths.
It is audio and ubiquity features that make smartphones an especially viable way to deploy voice biometrics on a large scale for one-on-one verification. Voice biometrics are hampered by the same challenges as facial biometrics, as capture environments can be unpredictable and inconsistent, how they happen with background interference from facial images can interfere with the capture and matching process.
The biometric reader is one of the most powerful tools to prevent fraud and to guarantee security, as it allows access to equipment, systems and doors only to registered people. Biometrics started to become even better known in the elections when it began to be tested in three Brazilian municipalities in that year to identify the voter. A simple touch with the index finger gave access to the reader for voting.
Since then, it has become popular and is present both in access to banks, notebooks, smartphones, as well as to ensure security in the door entry system. Want to know more about the biometric reader? Continue reading our post and learn all about the concept and technology necessary for its operation.
What is a biometric reader?
The biometric reader can be defined as an identification sensor by means of physical characteristics, such as fingerprint, eyes and even the position of blood vessels. It can be used to access a company’s cell phone, notebook, computer, server room, and also safes and doorways to companies and homes. Access is only allowed when the biometric reader identifies the registered user based on their physical characteristics.
Another very common scene of the use of biometrics is the places where confidential documents are kept and the door only opens with a facial reading or with the touch of the hands of those who are allowed to enter it.