What is active infrared technology?

Traditional face recognition technology is mainly based on face recognition of visible light images, which is also a familiar recognition method and has a research and development history of more than 30 years. However, this method has shortcomings that are difficult to overcome. Especially when the ambient lighting changes, the recognition effect will drop sharply and cannot meet the needs of the actual system. Solutions to solve the lighting problem include three-dimensional image face recognition and thermal imaging face recognition. However, these two technologies are far from mature, and the recognition results are unsatisfactory.

One solution that is rapidly developing is multi-light face recognition technology based on active near-infrared images. It can overcome the influence of light changes and has achieved excellent recognition performance. The overall system performance in terms of accuracy, stability and speed exceeds that of 3D image face recognition. This technology has developed rapidly in the past two or three years, making face recognition technology gradually practical.

Extended information:

Comparing face recognition with other types of biometrics, face recognition has the following characteristics:

1. Non-mandatory: users do not need to Specially used with face collection equipment, face images can be obtained almost unconsciously. There is no "mandatory" in this sampling method;

2. Non-contact: users do not need to interact directly with the device Face images can be obtained by touching them;

3. Concurrency: Multiple faces can be sorted, judged and recognized in actual application scenarios;

4. Visual characteristics: It has the characteristics of "knowing people by their appearance", as well as simple operation, intuitive results, and good concealment.