What is the face recognition verification code?

Face recognition verification code means that before face recognition, there will be a verification code that you need to input before face recognition can be carried out.

Generally, this verification code will be sent to you in the form of short message, and then you can enter it, or give you a graphic verification code to tell you the operation. The verification process is very simple, as long as it is completed carefully, face recognition can be carried out.

The traditional face recognition technology is mainly based on visible light images, which is also a familiar recognition method and has been developed for more than 30 years.

However, this method has insurmountable defects, especially when the ambient illumination changes, the recognition effect will drop sharply, which can not meet the needs of the actual system. There are three-dimensional image face recognition and thermal imaging face recognition to solve the illumination problem. However, these two technologies are far from mature, and the recognition effect is not satisfactory.

A rapidly developing solution is multi-light source face recognition technology based on active near-infrared images. It can overcome the influence of light change and achieve excellent recognition performance. The overall system performance exceeds that of 3D face recognition in accuracy, stability and speed. This technology has developed rapidly in recent two or three years, which makes face recognition technology gradually practical.

Refer to the above? Baidu Encyclopedia-Face Recognition