no code implementations • 14 Mar 2024 • Juan Tapia, Christoph Busch
Our results show that MAD trained on EfficientNetB0 from FERET, FRGCv2, and FRLL can reach a lower error rate in comparison with SOTA.
1 code implementation • 25 Jan 2024 • Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch
Additional steps based on face recognition and face image quality assessment models reduce false positives, and facilitate the deduplication of the face images both for intra- and inter-subject duplicate sets.
1 code implementation • 9 Nov 2023 • Meiling Fang, Marco Huber, Julian Fierrez, Raghavendra Ramachandra, Naser Damer, Alhasan Alkhaddour, Maksim Kasantcev, Vasiliy Pryadchenko, Ziyuan Yang, Huijie Huangfu, Yingyu Chen, Yi Zhang, Yuchen Pan, Junjun Jiang, Xianming Liu, Xianyun Sun, Caiyong Wang, Xingyu Liu, Zhaohua Chang, Guangzhe Zhao, Juan Tapia, Lazaro Gonzalez-Soler, Carlos Aravena, Daniel Schulz
This paper presents a summary of the Competition on Face Presentation Attack Detection Based on Privacy-aware Synthetic Training Data (SynFacePAD 2023) held at the 2023 International Joint Conference on Biometrics (IJCB 2023).
no code implementations • 6 Oct 2023 • Patrick Tinsley, Sandip Purnapatra, Mahsa Mitcheff, Aidan Boyd, Colton Crum, Kevin Bowyer, Patrick Flynn, Stephanie Schuckers, Adam Czajka, Meiling Fang, Naser Damer, Xingyu Liu, Caiyong Wang, Xianyun Sun, Zhaohua Chang, Xinyue Li, Guangzhe Zhao, Juan Tapia, Christoph Busch, Carlos Aravena, Daniel Schulz
New elements in this fifth competition include (1) GAN-generated iris images as a category of presentation attack instruments (PAI), and (2) an evaluation of human accuracy at detecting PAI as a reference benchmark.
no code implementations • 29 May 2023 • Roman Kessler, Kiran Raja, Juan Tapia, Christoph Busch
The results endorse the advantages of face embeddings in more effective image pre-selection for face morphing and accurate detection of morphed face images.
no code implementations • 25 Apr 2023 • Diego Pasmino, Carlos Aravena, Juan Tapia, Christoph Busch
This will help researchers to compare new approaches to existing algorithms on a wider database.
no code implementations • 25 Apr 2023 • Juan Tapia, Christoph Busch
This paper proposes an explainable visualisation of different face feature extraction algorithms that enable the detection of bona fide and morphing images for single morphing attack detection.
1 code implementation • 23 Mar 2023 • Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch
Additionally, a discard fraction limit or range must be selected to compute pAUC values, which can then be used to quantitatively rank quality assessment algorithms.
no code implementations • 24 Feb 2023 • Torsten Schlett, Sebastian Schachner, Christian Rathgeb, Juan Tapia, Christoph Busch
This work investigates the effect of lossy image compression on a state-of-the-art face recognition model, and on multiple face image quality assessment models.
no code implementations • 23 Jan 2023 • Sebastian Gonzalez, Juan Tapia
In this paper, an updated two-stage, end-to-end Presentation Attack Detection method for remote biometric verification systems of ID cards, based on MobileNetV2, is presented.
no code implementations • 4 Sep 2022 • Juan Tapia, Daniel Benalcazar, Andres Valenzuela, Leonardo Causa, Enrique Lopez Droguett, Christoph Busch
This research proposes a new database and method to detect the reduction of alertness conditions due to alcohol, drug consumption and sleepiness deprivation from Near-Infra-Red (NIR) periocular eye images.
1 code implementation • 4 Sep 2022 • Juan Tapia, Enrique Lopez Droguett, Christoph Busch
This research proposes a method to detect alcohol consumption from Near-Infra-Red (NIR) periocular eye images.
no code implementations • 22 Jun 2022 • Juan Tapia, Daniel Schulz, Christoph Busch
This paper proposes a framework following the Few-Shot-Learning approach that shares image information based on the siamese network using triplet-semi-hard-loss to tackle the morphing attack detection and boost the clustering classification process.
no code implementations • 4 Apr 2022 • Luis Guarda, Juan Tapia, Enrique Lopez Droguett, Marcelo Ramos
Due to the transient mental state of a human subject between alertness and drowsiness, automated drowsiness detection is a complex problem to tackle.
no code implementations • 24 Nov 2021 • Rodrigo Lara, Andres Valenzuela, Daniel Schulz, Juan Tapia, Christoph Busch
The best results for the fused multi-country dataset of ID Card images from Chile, Argentina and Mexico reached an IoU of 0. 9911.
no code implementations • 26 Oct 2021 • Juan Tapia, Christoph Busch
Face morphing attack detection is a challenging task.
no code implementations • 26 Jul 2021 • Jose Maureira, Juan Tapia, Claudia Arellano, Christoph Busch
Such results demonstrated the feasibility of synthetic images to fool presentation attacks detection algorithms and the need for such algorithms to be constantly updated and trained with a larger number of images and PAI scenarios.
no code implementations • 30 Jun 2021 • Juan Tapia, Enrique Lopez Droguett, Andres Valenzuela, Daniel Benalcazar, Leonardo Causa, Christoph Busch
The purpose of the system is to measure the fitness for duty.
no code implementations • 28 May 2021 • Juan Tapia, Sebastian Gonzalez, Christoph Busch
The bona fide class consists of live iris images, whereas the attack presentation instrument classes are comprised of cadaver, printed, and contact lenses images, for a total of four scenarios.
no code implementations • 16 Feb 2021 • Juan Tapia, Andres Valenzuela, Rodrigo Lara, Marta Gomez-Barrero, Christoph Busch
Selfie-based biometrics has great potential for a wide range of applications since, e. g. periocular verification is contactless and is safe to use in pandemics such as COVID-19, when a major portion of a face is covered by a facial mask.
no code implementations • 1 Sep 2020 • Priyanka Das, Joseph McGrath, Zhaoyuan Fang, Aidan Boyd, Ganghee Jang, Amir Mohammadi, Sandip Purnapatra, David Yambay, Sébastien Marcel, Mateusz Trokielewicz, Piotr Maciejewicz, Kevin Bowyer, Adam Czajka, Stephanie Schuckers, Juan Tapia, Sebastian Gonzalez, Meiling Fang, Naser Damer, Fadi Boutros, Arjan Kuijper, Renu Sharma, Cunjian Chen, Arun Ross
Launched in 2013, LivDet-Iris is an international competition series open to academia and industry with the aim to assess and report advances in iris Presentation Attack Detection (PAD).
no code implementations • 1 May 2019 • Juan Tapia, Christian Rathgeb, Christoph Busch
In this paper, we provide a comprehensive analysis of periocular-based sex-prediction (commonly referred to as gender classification) using state-of-the-art machine learning techniques.
1 code implementation • 1 May 2019 • Juan Tapia, Claudia Arellano
This paper explores the use of a Binary Statistical Features (BSIF) algorithm for classifying gender from iris texture images captured with NIR sensors.
no code implementations • 26 Apr 2019 • Ignacio Viedma, Juan Tapia, Andres Iturriaga, Christoph Busch
In this work, we analyze and demonstrate the location of the most relevant features that describe gender in periocular NIR images and evaluate its influence its classification.
no code implementations • 31 Dec 2018 • Juan Tapia, Claudia Arellano, Ignacio Viedma
These results compare well with the state of the art and show that when improving image resolution with the SRCNN the sex-classification rate increases.