134 citations · 736 across the 77 of their papers we have counts for
12 papers · 1 filter
DeepWriteSYN: On-Line Handwriting Synthesis via Deep Short-Term Representations
Ruben Tolosana, Paula Delgado-Santos, Andres Perez-Uribe +3
This study proposes DeepWriteSYN, a novel on-line handwriting synthesis approach via deep short-term representations. It comprises two modules: i) an optional and interchangeable t…
Smartphone Sensors for Modeling Human-Computer Interaction: General Outlook and Research Datasets for User Authentication
Alejandro Acien, Aythami Morales, Ruben Vera-Rodriguez +1
In this paper we list the sensors commonly available in modern smartphones and provide a general outlook of the different ways these sensors can be used for modeling the interactio…
Keystroke Biometrics in Response to Fake News Propagation in a Global Pandemic
Aythami Morales, Alejandro Acien, Julian Fierrez +4
This work proposes and analyzes the use of keystroke biometrics for content de-anonymization. Fake news have become a powerful tool to manipulate public opinion, especially during…
BeCAPTCHA: Behavioral Bot Detection using Touchscreen and Mobile Sensors benchmarked on HuMIdb
Alejandro Acien, Aythami Morales, Julian Fierrez +2
In this paper we study the suitability of a new generation of CAPTCHA methods based on smartphone interactions. The heterogeneous flow of data generated during the interaction with…
BeCAPTCHA-Mouse: Synthetic Mouse Trajectories and Improved Bot Detection
Alejandro Acien, Aythami Morales, Julian Fierrez +1
We first study the suitability of behavioral biometrics to distinguish between computers and humans, commonly named as bot detection. We then present BeCAPTCHA-Mouse, a bot detecto…
TypeNet: Scaling up Keystroke Biometrics
Alejandro Acien, John V. Monaco, Aythami Morales +2
We study the suitability of keystroke dynamics to authenticate 100K users typing free-text. For this, we first analyze to what extent our method based on a Siamese Recurrent Neural…
DeepFakes Evolution: Analysis of Facial Regions and Fake Detection Performance
Ruben Tolosana, Sergio Romero-Tapiador, Julian Fierrez +1
Media forensics has attracted a lot of attention in the last years in part due to the increasing concerns around DeepFakes. Since the initial DeepFake databases from the 1st genera…
Blockchain meets Biometrics: Concepts, Application to Template Protection, and Trends
Oscar Delgado-Mohatar, Julian Fierrez, Ruben Tolosana +1
Blockchain technologies provide excellent architectures and practical tools for securing and managing the sensitive and private data stored in biometric templates, but at a cost. W…
DeepSign: Deep On-Line Signature Verification
Ruben Tolosana, Ruben Vera-Rodriguez, Julian Fierrez +1
Deep learning has become a breathtaking technology in the last years, overcoming traditional handcrafted approaches and even humans for many different tasks. However, in some tasks…
BeCAPTCHA: Detecting Human Behavior in Smartphone Interaction using Multiple Inbuilt Sensors
Alejandro Acien, Aythami Morales, Julian Fierrez +2
We introduce a novel multimodal mobile database called HuMIdb (Human Mobile Interaction database) that comprises 14 mobile sensors acquired from 600 users. The heterogeneous flow o…
BioTouchPass2: Touchscreen Password Biometrics Using Time-Aligned Recurrent Neural Networks
Ruben Tolosana, Ruben Vera-Rodriguez, Julian Fierrez +1
Passwords are still used on a daily basis for all kind of applications. However, they are not secure enough by themselves in many cases. This work enhances password scenarios throu…
DeepFakes and Beyond: A Survey of Face Manipulation and Fake Detection
Ruben Tolosana, Ruben Vera-Rodriguez, Julian Fierrez +2
The free access to large-scale public databases, together with the fast progress of deep learning techniques, in particular Generative Adversarial Networks, have led to the generat…