Face ID systems
Facial recognition systems are biometric technologies that use the unique features of a person’s face to identify or authenticate them. These systems analyze key facial features, such as the distance between the eyes, the shape of the nose, the jawline, and other individual traits, and compare them with stored data to verify identity. Facial recognition systems are becoming increasingly popular and are used in smartphones, security systems, access control, and for government and commercial purposes.
How facial recognition systems work:
Face scanning:
A camera captures an image of the face or a 3D model of it. Many systems use infrared sensors to capture the depth and structure of the face, making them effective even in low-light conditions.
Face mapping:
The system creates a mathematical model by analyzing key points on the face, such as the distance between the eyes, the position of the nose, and the shape of the lips. This information is stored as a biometric template.
Data storage:
Instead of storing an image, the system converts facial features into a unique mathematical form (biometric identifier).
Matching and Verification:
When a user attempts to gain access, the system scans their face and compares it to a previously saved model. If the data matches, the system grants access.
Decision Making:
If the recognized face matches the data in the system, access is granted. Otherwise, access is denied.
Main Features of Facial Recognition Systems:
Accuracy and Reliability:
Modern systems use complex algorithms that provide high accuracy and reduce the number of false positives. The use of 3D scanners helps to distinguish even similar faces.
Infrared Sensors:
Many systems are equipped with infrared sensors, which allow them to work even in the dark or in low light.
Anti-Spoofing:
To prevent deception, systems use anti-counterfeiting technologies. For example, they can recognize attempts at deception using photographs, masks, or videos.
Speed of Operation:
Face recognition occurs in a fraction of a second, which makes such systems ideal for places with a large flow of people.
Contactless:
Face recognition systems are completely contactless, which ensures hygiene and convenience, especially in public places.
