1. Introduction
The accelerated evolution in consumer smartphone cameras and the COVID-19 pandemic has increased the interest in remote biometric verification systems. The capacity to reach the customer remotely for services such as e-commerce, digital banking, and general fintech requires robust systems for remote identity verification. One approach for this verification is using a picture of an official identity document, such as a national ID card, and comparing the data with a frontal face photograph (selfie) of the person in question, both captured remotely by the user "in the wild" condition.