Esteban Vázquez

Esteban Vázquez


defining metrics

September 19, 2023

Defining the core accuracy metrics of biometric systems

During the evaluation of Biometrics-based systems, one of the first steps involves defining the core accuracy metrics. This is an important step that helps us to assess if the behavior of our system corresponds with our expectations. Verification scores measure the differences between two given biometrics samples and it’s normally given in 2 forms: a) […]

algo vs systems en

August 1, 2023

System vs Algorithm Evaluations in Face Presentation Attack Detection

In the field of face presentation attack detection (face-PAD) or liveness detection, evaluating the effectiveness of detection systems and algorithms is crucial to ensure robust and reliable anti-spoofing measures. Two primary evaluation approaches used in PAD research are system evaluation and algorithm evaluation. In this blog post, we will explore the key differences between them, […]

July 5, 2023

Understanding Face Presentation Attack Detection and Face Liveness Detection

In the realm of identity verification, detecting and preventing fraud is crucial for maintaining trust and security. Two key techniques employed for this purpose are face presentation attack detection (PAD) and face liveness detection. While both techniques contribute to the overall anti-fraud measures in face recognition, they can differ (or converge, spoiler alert!) in their […]

March 29, 2023

Facial presentation attacks detection, an overview.

Facial recognition technology has revolutionized the way we identify people in a variety of environments, from unlocking our phones to accessing high-security areas. However, as with any technology, it is not immune to malicious attacks. Presentation Attack Detection (PAD) is a critical aspect of facial recognition technology that aims to identify and mitigate attempts to forge or spoof the system.