A Survey on Face Recognition Techniques for Undersampled Data

With the increase of the Security threats around the world, it is very difficult to find a person whether he is an authorized one or not. Due to an increase of the Globalization and digitization around the world, the Face Recognition technology gains a lot of importance for identification purpose. These techniques are mainly focused on the authentication and authorization aspects and these methodologies will help us to locate any person by capturing and comparing those from the images that are present in the database, Even the disguised ones also. In this Survey paper, different types of Undersampled Face Recognition methods are analyzed.