In the existing technology, when a person passes through a device such as a gate or an entrance guard, an identity authentication needs to be performed on the person. Usually, the authentication is performed only in a single manner, such as fingerprint recognition or face recognition. However, with the development of technology, a single manner of identity authentication is not safe or reliable enough, and the system is vulnerable to an attack, so that the identity of the person to be authenticated cannot be accurately determined or may be misrecognized. On the other hand, a device for identity authentication is greatly affected by external environmental factors. When the resolution is low, the ambient light is poor, or the makeup changes, the identity cannot be accurately recognized, which may cause a deviation in the final authentication result, resulting in misrecognition or inability to recognize, and greatly reducing recognition efficiency and accuracy.
The above information disclosed in the background is only for enhancing an understanding of the background of the present disclosure. Therefore, it may contain information that does not constitute the existing technology known to those skilled in the art.