Biometric Systems

Biometric systems automatically identify individuals based on their physical or behavioral characteristics. In this context, finger vein patterns are used to validate individuals. Because they are specific to all individuals and do not change over time. An image of the blood vessel pattern is obtained by the infrared sensor, whereby hemoglobin in the blood is captured. Pre-processing techniques (eg square-based segmentation and edge detection) using canny edge detectors are applied to the image.

Multimodal biometric systems use multiple sensors or biometrics to overcome the limitations of single mode biometric systems. For example, the iris recognition system can be compromised by worn or fingerprints of the aged iris and finger scan system. Although unimodal biometric systems are limited by their identity integrity, it is unlikely that some unimodal systems will be subject to the same restrictions. A multimodal biometric system is a set of information from the same marker (ie multiple images of the iris, or a scan of the same finger) or information from different biometrics (fingerprint scanning and speech recognition, use of voice passwords) You can get.

Completing the immigration control system is a big and expensive issue. Biometric technology was introduced in an outdated computer environment. These systems and improved biometric systems will need to be exchanged. Nonetheless, financing and completing biometrics based entry and exit systems is an important investment in our national security. According to privacy requirements, the exchange of terrorist information with other countries, and the list of passports that were lost and stolen, will immediately provide security benefits. It is necessary to confirm the passport to the issuing organization in real time. The more you leave the screening, the more security is enhanced. At least some screening should be done before passenger leaves the flight to the United States. Also, in cooperation with other countries, it is necessary to secure an effective inspection system at all airports.

When an individual uses the biometric system for the first time it is called registration. Biometric information from individuals is acquired and stored during registration. For subsequent use, biometric information is detected and compared with the information saved at registration. If the biometric system is to be robust, storing and retrieving such systems themselves is important. The first block (sensor) is the interface between the real world and the system and we need to get all the necessary data. In most cases, this is an image acquisition system, but it depends on the characteristics you need. The second block performs all necessary preprocessing. Removing artifacts from sensors, emphasizing inputs (removing background noise, etc), using some sort of normalization. In the third block, extract the necessary functions. This step is an important step as you need to extract the correct features in the best way.