Biometrics enables the recognition of humans by machines. We use distinct characteristics that are unique for a person to perform identification. Some of the more common biometric methods include fingerprint, iris and facial recognition that are increasingly used in our everyday devices. The methods used can be easily transferred to the identification of objects in images, based on distinct characteristics. Multi-biometric methods recognize and combine multiple physiological traits. The combination of e.g. fingerprint, iris, and face recognition can make the systems more robust, increase the recognition rate, and make the system less susceptible towards manipulations. Any human carries around their biometric traits at all time and can’t lose them, as opposed to PINs or passwords.