Search Results for author: Walter Scheirer

Found 26 papers, 6 papers with code

N-Modal Contrastive Losses with Applications to Social Media Data in Trimodal Space

no code implementations18 Mar 2024 William Theisen, Walter Scheirer

Recent advancements in model architectures such as CLIP have enabled researchers to begin studying the interplay between the modalities of text and images in a shared latent space.

Pixel-Grounded Prototypical Part Networks

no code implementations25 Sep 2023 Zachariah Carmichael, Suhas Lohit, Anoop Cherian, Michael Jones, Walter Scheirer

Prototypical part neural networks (ProtoPartNNs), namely PROTOPNET and its derivatives, are an intrinsically interpretable approach to machine learning.

Object

NOMAD: A Natural, Occluded, Multi-scale Aerial Dataset, for Emergency Response Scenarios

no code implementations18 Sep 2023 Arturo Miguel Russell Bernal, Walter Scheirer, Jane Cleland-Huang

With the increasing reliance on small Unmanned Aerial Systems (sUAS) for Emergency Response Scenarios, such as Search and Rescue, the integration of computer vision capabilities has become a key factor in mission success.

Human Detection

C-CLIP: Contrastive Image-Text Encoders to Close the Descriptive-Commentative Gap

no code implementations6 Sep 2023 William Theisen, Walter Scheirer

This is something rarely seen on social media, where the vast majority of text content is ``commentative'' in nature.

Descriptive Retrieval

Has the Virtualization of the Face Changed Facial Perception? A Study of the Impact of Augmented Reality on Facial Perception

no code implementations1 Mar 2023 Louisa Conwill, Samuel Anthony, Walter Scheirer

Our results demonstrate that faces modified with more traditional face filters are perceived similarly to unmodified faces, and faces filtered with augmented reality filters are perceived differently from unmodified faces.

Measuring Human Perception to Improve Open Set Recognition

no code implementations8 Sep 2022 Jin Huang, Derek Prijatelj, Justin Dulay, Walter Scheirer

The human ability to recognize when an object belongs or does not belong to a particular vision task outperforms all open set recognition algorithms.

Object Recognition Open Set Learning

Analyzing the Impact of Shape & Context on the Face Recognition Performance of Deep Networks

no code implementations5 Aug 2022 Sandipan Banerjee, Walter Scheirer, Kevin Bowyer, Patrick Flynn

In this article, we analyze how changing the underlying 3D shape of the base identity in face images can distort their overall appearance, especially from the perspective of deep face recognition.

Data Augmentation Face Recognition

Adaptive Autonomy in Human-on-the-Loop Vision-Based Robotics Systems

no code implementations28 Mar 2021 Sophia Abraham, Zachariah Carmichael, Sreya Banerjee, Rosaura VidalMata, Ankit Agrawal, Md Nafee Al Islam, Walter Scheirer, Jane Cleland-Huang

Computer vision approaches are widely used by autonomous robotic systems to sense the world around them and to guide their decision making as they perform diverse tasks such as collision avoidance, search and rescue, and object manipulation.

Collision Avoidance Decision Making

The Criminality From Face Illusion

no code implementations6 Jun 2020 Kevin W. Bowyer, Michael King, Walter Scheirer, Kushal Vangara

A few recent publications have claimed success in analyzing an image of a person's face in order to predict the person's status as Criminal / Non-Criminal.

Experimental Design

Automatic Discovery of Political Meme Genres with Diverse Appearances

no code implementations17 Jan 2020 William Theisen, Joel Brogan, Pamela Bilo Thomas, Daniel Moreira, Pascal Phoa, Tim Weninger, Walter Scheirer

This pipeline can ingest meme images from a social network, apply computer vision-based techniques to extract local features and index new images into a database, and then organize the memes into related genres.

Learning Transformation-Aware Embeddings for Image Forensics

no code implementations13 Jan 2020 Aparna Bharati, Daniel Moreira, Patrick Flynn, Anderson Rocha, Kevin Bowyer, Walter Scheirer

To establish the efficacy of the proposed approach, comparisons with state-of-the-art handcrafted and deep learning-based descriptors, and image matching approaches are made.

Image Forensics Object Recognition

Dynamic Spatial Verification for Large-Scale Object-Level Image Retrieval

no code implementations24 Mar 2019 Joel Brogan, Aparna Bharati, Daniel Moreira, Kevin Bowyer, Patrick Flynn, Anderson Rocha, Walter Scheirer

Images from social media can reflect diverse viewpoints, heated arguments, and expressions of creativity, adding new complexity to retrieval tasks.

Clustering Content-Based Image Retrieval +3

Face Hallucination Revisited: An Exploratory Study on Dataset Bias

no code implementations21 Dec 2018 Klemen Grm, Martin Pernuš, Leo Cluzel, Walter Scheirer, Simon Dobrišek, Vitomir Štruc

This down-sampling (or degradation) procedure not only defines the characteristics of the LR training data, but also determines the type of image degradations the learned FH models are eventually able to handle.

Face Hallucination Hallucination

Backdooring Convolutional Neural Networks via Targeted Weight Perturbations

no code implementations7 Dec 2018 Jacob Dumford, Walter Scheirer

Deep learning techniques are at the top of the game for facial recognition, which means they have now been implemented in many production-level systems.

Backdoor Attack

The Limits and Potentials of Deep Learning for Robotics

no code implementations18 Apr 2018 Niko Sünderhauf, Oliver Brock, Walter Scheirer, Raia Hadsell, Dieter Fox, Jürgen Leitner, Ben Upcroft, Pieter Abbeel, Wolfram Burgard, Michael Milford, Peter Corke

In this paper we discuss a number of robotics-specific learning, reasoning, and embodiment challenges for deep learning.

Robotics

SHADHO: Massively Scalable Hardware-Aware Distributed Hyperparameter Optimization

no code implementations5 Jul 2017 Jeff Kinnison, Nathaniel Kremer-Herman, Douglas Thain, Walter Scheirer

We first demonstrate that our framework achieves double the throughput of a standard distributed hyperparameter optimization framework by optimizing SVM for MNIST using 150 distributed workers.

Cell Segmentation Hyperparameter Optimization

Provenance Filtering for Multimedia Phylogeny

1 code implementation1 Jun 2017 Allan Pinto, Daniel Moreira, Aparna Bharati, Joel Brogan, Kevin Bowyer, Patrick Flynn, Walter Scheirer, Anderson Rocha

Departing from traditional digital forensics modeling, which seeks to analyze single objects in isolation, multimedia phylogeny analyzes the evolutionary processes that influence digital objects and collections over time.

U-Phylogeny: Undirected Provenance Graph Construction in the Wild

1 code implementation31 May 2017 Aparna Bharati, Daniel Moreira, Allan Pinto, Joel Brogan, Kevin Bowyer, Patrick Flynn, Walter Scheirer, Anderson Rocha

Deriving relationships between images and tracing back their history of modifications are at the core of Multimedia Phylogeny solutions, which aim to combat misinformation through doctored visual media.

graph construction Misinformation

Using Human Brain Activity to Guide Machine Learning

no code implementations16 Mar 2017 Ruth Fong, Walter Scheirer, David Cox

The effectiveness of this approach points to a path forward for a new class of hybrid machine learning algorithms which take both inspiration and direct constraints from neuronal data.

BIG-bench Machine Learning Object Recognition

Predicting First Impressions with Deep Learning

1 code implementation25 Oct 2016 Mel McCurrie, Fernando Beletti, Lucas Parzianello, Allen Westendorp, Samuel Anthony, Walter Scheirer

Psychologists believe that these judgements are based on a variety of factors such as emotional states, personality traits, and other physiognomic cues.

Attribute

To Frontalize or Not To Frontalize: Do We Really Need Elaborate Pre-processing To Improve Face Recognition?

1 code implementation16 Oct 2016 Sandipan Banerjee, Joel Brogan, Janez Krizaj, Aparna Bharati, Brandon RichardWebster, Vitomir Struc, Patrick Flynn, Walter Scheirer

If a CNN is intended to tolerate facial pose, then we face an important question: should this training data be diverse in its pose distribution, or should face images be normalized to a single pose in a pre-processing step?

Face Recognition

One-Class Slab Support Vector Machine

no code implementations2 Aug 2016 Victor Fragoso, Walter Scheirer, Joao Hespanha, Matthew Turk

This work introduces the one-class slab SVM (OCSSVM), a one-class classifier that aims at improving the performance of the one-class SVM.

One-class classifier

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