Traditional access control systems generally use IC cards, magnetic stripe cards, ID cards, while biometric access control systems use a variety of different biometric identification, from the security point of view, people tend to use biometric identification with higher security.
Installing face recognition on traditional access gates, which is now obsolete, face gates use the person's own characteristic information for verification, which is a great improvement in efficiency and security.
Face recognition is based on the biometric features generated by combining a person with a specific form such as a photo or video.
In recent years it has been gradually discovered that it will be a trend to use some physical features unique to the human body such as fingerprints, palm prints, iris, for identification and verification. Face unlocking is one of them.
With the development of technology, the application scope of biometric technology is also expanding, and many biometric technologies are beginning to be applied to the security field, such as face time and attendance system, fingerprint access control system, iris access control system, etc. Nowadays, biometric features such as face, fingerprint and iris have been widely used in various fields of society.
Access control systems that are commonly used in our daily life usually use cards as the main way of entry and exit, but now people are starting to use faces or finger veins as the main way of entry and exit because they can pass quickly and securely. From the security point of view, this biometric access control system offers higher security.
Since people have multiple faces or certain differences between different body parts, there are high requirements for face recognition technology, and there are two main types of face recognition technology in common use: fingerprint and iris.
Fingerprint, because it belongs to the characteristic information that people themselves have, so this biological characteristic is more in line with people's strong security consciousness and is not easy to be copied and replaced.
Fingerprints are a set of features that correspond to the identified object in the textural features of the human body surface such as skin lines and tissue traces with textural features on the fingers or toes.
Fingerprints begin to develop within two months after birth. Fingers grow and mature separately at birth, and then fuse with the palm of the hand to form a whole when they mature.
Therefore, fingerprint is a unique and unique biological information in the human body that will not be lost, so this kind of biological information identification technology has high requirements for identity and identification speed.
In addition, face and fingerprint are one of the easiest features to collect data from all parts of the human body, with fast collection speed and low cost and high accuracy.
With the continuous improvement of the research level of biometric information recognition technology, cost reduction and system design scheme, biometric access control system will become more and more popular.
Face recognition is a kind of biometric information recognition technology that uses human face characteristics for identity recognition.
It mainly uses the physiological characteristics of human visual system, including image acquisition, image processing, feature comparison, etc., to carry out identification of people.
The research on face recognition technology started from the mid-1990s and has made great progress so far. Its basic principle is to obtain the location information of the target by detecting and tracking the target.
Due to the presence of a large number of complex structures (including: eyebrows, eyelashes, nose and lips) and various physiological structures and tissues (including pupils, eyeballs, tears, blood, etc.) on the human face.
The human face has a strong ability of self-expression (such as gender, age, height, etc.) and fallibility: facial features change with age or environmental changes.
The process of identity identification from the above facial features is the process of mutual comparison between "face" and "fingerprint" in the computer.
HFSSECURITY RA08 Face Recognition Access Control
Fingerprint identification system is to use the human fingerprint characteristics for identification, fingerprint and personal biometric characteristics, such as height, age and gender are one-to-one correspondence.
Biometric identification system is mainly composed of fingerprint detection equipment, input equipment.
Detection equipment: It can collect and output various images (point, line, surface) or data, and configure relevant detection equipment according to application requirements, which can analyze and process the collected fingerprint images or data, such as recognition rate detection, feature extraction, pattern recognition, etc.
Input devices: In the entire access control system are required to input a variety of swipe cards and swipe fingerprints way to the input interface of the control host.
Control host: control the entire access control system for operation.
Output interface: the detected fingerprint information can be output to the control host or application to achieve various functions.
HFSECURITY FR05 Face Fingerprint Attendance
1. Acquisition: the iris image is viewed directly with the naked eye, and the eyes need to be closed or opened during acquisition, not looking directly at the light source.
2. image processing: calculate the coordinates of each pixel based on the distribution characteristics of the black pixels in the iris.
3. comparison: the images are compared and the comparison must be made between the iris image and the target persona.
4. recognition process: the user selects the required feature values according to the requirements and the identity values are calculated by comparison.
5. display: the comparison results can be displayed directly on the screen
6. Result output: the result of the completed verification is displayed on the interface and can be output to other devices or terminals.
HFSECURITY IF05 Iris Face Attendance
Face recognition access control system is the use of the person's own characteristics information for identity verification, mainly face recognition, because the face has more characteristic information such as wrinkles, eye bags, etc., so face recognition access control system is also known as biometric access control system; traditional iris access control system principle is also the use of face recognition technology for identity authentication, but compared with the traditional iris access control system its accuracy rate is higher Some.