At present, facial recognition visual intercom access control, as the forefront component of security prevention systems, is equivalent to a peripheral video surveillance system. It is the most additional and critical confirmation mechanism for visitors entering and leaving the placement area. With the rapid development of the economy, people pay more attention to security measures in the field of security. Facial recognition visual intercom access control is widely used in banks, financial systems, point systems, power supply systems and other places in China. Due to the advantages of the system itself and the improvement of security management system efficiency, its application demand in other product markets has stood out. It not only changes the traditional passive monitoring method, but also improves the security of management through the confirmation mechanism between business and visitors, greatly reducing the risk of illegal elements invading through designated entry and exit channels.

Facial recognition access control terminals can be applied to construction sites, stations, schools, offices, gyms, residential areas, etc.

The facial recognition visual intercom access control system has the following three advantages compared to traditional identity recognition methods: 

1. Ensure the security of facial recognition. Due to the long-distance extraction of facial image information by facial recognition terminals and the relatively stable facial feature information, there are rarely cases of recognition errors caused by fingerprint or iris damage, and it is also difficult for others to extract and replicate.

2. The system is easy to operate. By improving algorithms and hardware platforms, the speed and accuracy of facial recognition can be increased, achieving real-time detection of facial recognition.

3. Embedded system design. By adopting an embedded design approach, the installation and debugging of facial recognition terminals are greatly simplified, and the use of high-performance processing chips can fully meet the processing requirements of other facial data.

The facial recognition visual intercom system mainly focuses on automatic recognition of the front of the face, and its recognition method is defined based on key point information to establish a feedback mechanism recognition system. In addition, he performs feature extraction on facial side recognition, making logical judgments on both the front and side to enrich facial recognition methods. 

Facial recognition has become a research hotspot in the fields of recognition and artificial intelligence due to its broad application scenarios in public safety, information security, government functions, commercial enterprises, venue entry and exit, and document authentication. Therefore, when using facial recognition visual intercom systems, the following points should be noted: it increases the difficulty of feature extraction and image grayscale acquisition; Avoid occlusions and the weakening of image information caused by shadows under lighting.