Search Results for author: Aidan Boyd

Found 13 papers, 3 papers with code

Iris Liveness Detection Competition (LivDet-Iris) -- The 2023 Edition

no code implementations6 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.

Teaching AI to Teach: Leveraging Limited Human Salience Data Into Unlimited Saliency-Based Training

no code implementations8 Jun 2023 Colton R. Crum, Aidan Boyd, Kevin Bowyer, Adam Czajka

We compare the accuracy achieved by our teacher-student training paradigm with (1) training using all available human salience annotations, and (2) using all available training data without human salience annotations.

Face Detection Saliency Prediction

State Of The Art In Open-Set Iris Presentation Attack Detection

no code implementations22 Aug 2022 Aidan Boyd, Jeremy Speth, Lucas Parzianello, Kevin Bowyer, Adam Czajka

We have curated the largest publicly-available image dataset for this problem, drawing from 26 benchmarks previously released by various groups, and adding 150, 000 images being released with the journal version of this paper, to create a set of 450, 000 images representing authentic iris and seven types of presentation attack instrument (PAI).

Iris Recognition

The Value of AI Guidance in Human Examination of Synthetically-Generated Faces

no code implementations22 Aug 2022 Aidan Boyd, Patrick Tinsley, Kevin Bowyer, Adam Czajka

Face image synthesis has progressed beyond the point at which humans can effectively distinguish authentic faces from synthetically generated ones.

Face Detection Image Generation +1

Human Saliency-Driven Patch-based Matching for Interpretable Post-mortem Iris Recognition

no code implementations3 Aug 2022 Aidan Boyd, Daniel Moreira, Andrey Kuehlkamp, Kevin Bowyer, Adam Czajka

Forensic iris recognition, as opposed to live iris recognition, is an emerging research area that leverages the discriminative power of iris biometrics to aid human examiners in their efforts to identify deceased persons.

Decision Making Iris Recognition

Interpretable Deep Learning-Based Forensic Iris Segmentation and Recognition

1 code implementation1 Dec 2021 Andrey Kuehlkamp, Aidan Boyd, Adam Czajka, Kevin Bowyer, Patrick Flynn, Dennis Chute, Eric Benjamin

In this paper, we present an end-to-end deep learning-based method for postmortem iris segmentation and recognition with a special visualization technique intended to support forensic human examiners in their efforts.

Iris Recognition Iris Segmentation +1

CYBORG: Blending Human Saliency Into the Loss Improves Deep Learning

1 code implementation1 Dec 2021 Aidan Boyd, Patrick Tinsley, Kevin Bowyer, Adam Czajka

This new approach incorporates human-annotated saliency maps into a loss function that guides the model's learning to focus on image regions that humans deem salient for the task.

Face Detection

Human-Aided Saliency Maps Improve Generalization of Deep Learning

no code implementations7 May 2021 Aidan Boyd, Kevin Bowyer, Adam Czajka

One ongoing challenge is how to achieve the greatest accuracy in cases where training data is limited.

Iris Presentation Attack Detection: Where Are We Now?

no code implementations23 Jun 2020 Aidan Boyd, Zhaoyuan Fang, Adam Czajka, Kevin W. Bowyer

As the popularity of iris recognition systems increases, the importance of effective security measures against presentation attacks becomes paramount.

Iris Recognition

Deep Learning-Based Feature Extraction in Iris Recognition: Use Existing Models, Fine-tune or Train From Scratch?

1 code implementation20 Feb 2020 Aidan Boyd, Adam Czajka, Kevin Bowyer

Features are extracted from each convolutional layer and the classification accuracy achieved by a Support Vector Machine is measured on a dataset that is disjoint from the samples used in training of the ResNet-50 model.

Iris Recognition

Are Gabor Kernels Optimal for Iris Recognition?

no code implementations20 Feb 2020 Aidan Boyd, Adam Czajka, Kevin Bowyer

We use (on purpose) a single-layer convolutional neural network as it mimics an iris code-based algorithm.

Iris Recognition

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