Search Results for author: Edward J. Delp

Found 50 papers, 7 papers with code

FairSSD: Understanding Bias in Synthetic Speech Detectors

1 code implementation17 Apr 2024 Amit Kumar Singh Yadav, Kratika Bhagtani, Davide Salvi, Paolo Bestagini, Edward J. Delp

In this work, we examine bias in existing synthetic speech detectors to determine if they will unfairly target a particular gender, age and accent group.

Fairness

Information Forensics and Security: A quarter-century-long journey

no code implementations21 Sep 2023 Mauro Barni, Patrizio Campisi, Edward J. Delp, Gwenael Doërr, Jessica Fridrich, Nasir Memon, Fernando Pérez-González, Anderson Rocha, Luisa Verdoliva, Min Wu

Information Forensics and Security (IFS) is an active R&D area whose goal is to ensure that people use devices, data, and intellectual properties for authorized purposes and to facilitate the gathering of solid evidence to hold perpetrators accountable.

Diffusion Model with Clustering-based Conditioning for Food Image Generation

no code implementations1 Sep 2023 Yue Han, Jiangpeng He, Mridul Gupta, Edward J. Delp, Fengqing Zhu

Image-based dietary assessment serves as an efficient and accurate solution for recording and analyzing nutrition intake using eating occasion images as input.

Clustering Data Augmentation +2

Semi-Supervised Object Detection for Sorghum Panicles in UAV Imagery

no code implementations16 May 2023 Enyu Cai, Jiaqi Guo, Changye Yang, Edward J. Delp

In this paper, we present an approach to reduce the amount of training data for sorghum panicle detection via semi-supervised learning.

object-detection Object Detection +2

DSVAE: Interpretable Disentangled Representation for Synthetic Speech Detection

no code implementations6 Apr 2023 Amit Kumar Singh Yadav, Kratika Bhagtani, Ziyue Xiang, Paolo Bestagini, Stefano Tubaro, Edward J. Delp

We also visualize the representation obtained from DSVAE for 17 different speech synthesizers and verify that they are indeed interpretable and discriminate bona fide and synthetic speech from each of the synthesizers.

Representation Learning Synthetic Speech Detection

Illumination Variation Correction Using Image Synthesis For Unsupervised Domain Adaptive Person Re-Identification

no code implementations23 Jan 2023 Jiaqi Guo, Amy R. Reibman, Edward J. Delp

Unsupervised domain adaptive (UDA) person re-identification (re-ID) aims to learn identity information from labeled images in source domains and apply it to unlabeled images in a target domain.

Domain Adaptive Person Re-Identification Image Generation +1

Improving Food Detection For Images From a Wearable Egocentric Camera

no code implementations19 Jan 2023 Yue Han, Sri Kalyan Yarlagadda, Tonmoy Ghosh, Fengqing Zhu, Edward Sazonov, Edward J. Delp

In this paper, we propose an approach to pre-process images collected by the AIM imaging sensor by rejecting extremely blurry images to improve the performance of food detection.

H4VDM: H.264 Video Device Matching

1 code implementation20 Oct 2022 Ziyue Xiang, Paolo Bestagini, Stefano Tubaro, Edward J. Delp

We denote our proposed technique as H. 264 Video Device Matching (H4VDM).

Video Forensics

Transformer-Based Speech Synthesizer Attribution in an Open Set Scenario

no code implementations14 Oct 2022 Emily R. Bartusiak, Edward J. Delp

In other words, we consider some speech synthesizers to be "known" synthesizers (i. e., part of the closed set) and others to be "unknown" synthesizers (i. e., part of the open set).

Attribute Misinformation +2

High-Resolution UAV Image Generation for Sorghum Panicle Detection

no code implementations8 May 2022 Enyu Cai, Zhankun Luo, Sriram Baireddy, Jiaqi Guo, Changye Yang, Edward J. Delp

The number of panicles (or heads) of Sorghum plants is an important phenotypic trait for plant development and grain yield estimation.

Data Augmentation Image-to-Image Translation +1

Synthesized Speech Detection Using Convolutional Transformer-Based Spectrogram Analysis

no code implementations3 May 2022 Emily R. Bartusiak, Edward J. Delp

Synthesized speech is common today due to the prevalence of virtual assistants, easy-to-use tools for generating and modifying speech signals, and remote work practices.

Splicing Detection and Localization In Satellite Imagery Using Conditional GANs

no code implementations3 May 2022 Emily R. Bartusiak, Sri Kalyan Yarlagadda, David Güera, Paolo Bestagini, Stefano Tubaro, Fengqing M. Zhu, Edward J. Delp

In this paper, we describe the use of a Conditional Generative Adversarial Network (cGAN) to identify the presence of such spliced forgeries within satellite images.

Generative Adversarial Network Image Manipulation

Frequency Domain-Based Detection of Generated Audio

no code implementations3 May 2022 Emily R. Bartusiak, Edward J. Delp

Attackers may manipulate audio with the intent of presenting falsified reports, changing an opinion of a public figure, and winning influence and power.

Leaf Tar Spot Detection Using RGB Images

no code implementations2 May 2022 Sriram Baireddy, Da-Young Lee, Carlos Gongora-Canul, Christian D. Cruz, Edward J. Delp

We show that a Mask R-CNN can be used effectively to detect tar spots in close-up images of leaf surfaces.

TAR

An Overview of Recent Work in Media Forensics: Methods and Threats

no code implementations26 Apr 2022 Kratika Bhagtani, Amit Kumar Singh Yadav, Emily R. Bartusiak, Ziyue Xiang, Ruiting Shao, Sriram Baireddy, Edward J. Delp

In this paper, we review recent work in media forensics for digital images, video, audio (specifically speech), and documents.

Forensic Analysis of Synthetically Generated Western Blot Images

no code implementations16 Dec 2021 Sara Mandelli, Davide Cozzolino, Edoardo D. Cannas, Joao P. Cardenuto, Daniel Moreira, Paolo Bestagini, Walter J. Scheirer, Anderson Rocha, Luisa Verdoliva, Stefano Tubaro, Edward J. Delp

As a matter of fact, the generation of synthetic content is not restricted to multimedia data like videos, photographs or audio sequences, but covers a significantly vast area that can include biological images as well, such as western blot and microscopic images.

Binary Classification

Improving Building Segmentation for Off-Nadir Satellite Imagery

no code implementations8 Sep 2021 Hanxiang Hao, Sriram Baireddy, Kevin LaTourette, Latisha Konz, Moses Chan, Mary L. Comer, Edward J. Delp

In this paper, we propose a method that is able to provide accurate building segmentation for satellite imagery captured from a large range of off-nadir angles.

Scene Understanding Segmentation

Field-Based Plot Extraction Using UAV RGB Images

no code implementations1 Sep 2021 Changye Yang, Sriram Baireddy, Enyu Cai, Melba Crawford, Edward J. Delp

Unmanned Aerial Vehicles (UAVs) have become popular for use in plant phenotyping of field based crops, such as maize and sorghum, due to their ability to acquire high resolution data over field trials.

Management Plant Phenotyping

Panicle Counting in UAV Images For Estimating Flowering Time in Sorghum

no code implementations15 Jul 2021 Enyu Cai, Sriram Baireddy, Changye Yang, Melba Crawford, Edward J. Delp

Flowering time (time to flower after planting) is important for estimating plant development and grain yield for many crops including sorghum.

Image-Based Plant Wilting Estimation

no code implementations27 May 2021 Changye Yang, Sriram Baireddy, Enyu Cai, Valerian Meline, Denise Caldwell, Anjali S. Iyer-Pascuzzi, Edward J. Delp

In particular, we want to design a metric for wilting based on images acquired of the plant.

FaR-GAN for One-Shot Face Reenactment

no code implementations13 May 2020 Hanxiang Hao, Sriram Baireddy, Amy R. Reibman, Edward J. Delp

In this paper, we present a one-shot face reenactment model, FaR-GAN, that takes only one face image of any given source identity and a target expression as input, and then produces a face image of the same source identity but with the target expression.

Face Reenactment

Deep Transfer Learning For Plant Center Localization

no code implementations29 Apr 2020 Enyu Cai, Sriram Baireddy, Changye Yang, Melba Crawford, Edward J. Delp

In this paper, we propose a method for estimating plant centers by transferring an existing model to a new scenario using limited ground truth data.

Management Plant Phenotyping +1

Forensic Scanner Identification Using Machine Learning

no code implementations6 Feb 2020 Ruiting Shao, Edward J. Delp

Due to the increasing availability and functionality of image editing tools, many forensic techniques such as digital image authentication, source identification and tamper detection are important for forensic image analysis.

BIG-bench Machine Learning

Multi-View Matching Network for 6D Pose Estimation

no code implementations27 Nov 2019 Daniel Mas Montserrat, Jianhang Chen, Qian Lin, Jan P. Allebach, Edward J. Delp

Applications that interact with the real world such as augmented reality or robot manipulation require a good understanding of the location and pose of the surrounding objects.

6D Pose Estimation object-detection +2

A Utility-Preserving GAN for Face Obscuration

no code implementations27 Jun 2019 Hanxiang Hao, David Güera, Amy R. Reibman, Edward J. Delp

From TV news to Google StreetView, face obscuration has been used for privacy protection.

Robustness Analysis of Face Obscuration

no code implementations13 May 2019 Hanxiang Hao, David Güera, János Horváth, Amy R. Reibman, Edward J. Delp

Face obscuration is needed by law enforcement and mass media outlets to guarantee privacy.

Face Identification

Locating Objects Without Bounding Boxes

6 code implementations CVPR 2019 Javier Ribera, David Güera, Yuhao Chen, Edward J. Delp

In these networks, the training procedure usually requires providing bounding boxes or the maximum number of expected objects.

Object Object Localization +1

A Counter-Forensic Method for CNN-Based Camera Model Identification

no code implementations6 May 2018 David Güera, Yu Wang, Luca Bondi, Paolo Bestagini, Stefano Tubaro, Edward J. Delp

We examine in this paper the problem of identifying the camera model or type that was used to take an image and that can be spoofed.

Reliability Map Estimation For CNN-Based Camera Model Attribution

no code implementations4 May 2018 David Güera, Sri Kalyan Yarlagadda, Paolo Bestagini, Fengqing Zhu, Stefano Tubaro, Edward J. Delp

This refers to the problem of detecting which camera model has been used to acquire an image by only exploiting pixel information.

Texture Segmentation Based Video Compression Using Convolutional Neural Networks

no code implementations8 Feb 2018 Chichen Fu, Di Chen, Edward J. Delp, Zoe Liu, Fengqing Zhu

There has been a growing interest in using different approaches to improve the coding efficiency of modern video codec in recent years as demand for web-based video consumption increases.

Texture Classification Video Compression

Three Dimensional Fluorescence Microscopy Image Synthesis and Segmentation

no code implementations22 Jan 2018 Chichen Fu, Soonam Lee, David Joon Ho, Shuo Han, Paul Salama, Kenneth W. Dunn, Edward J. Delp

Advances in fluorescence microscopy enable acquisition of 3D image volumes with better image quality and deeper penetration into tissue.

Image Generation Segmentation

First Steps Toward Camera Model Identification with Convolutional Neural Networks

1 code implementation3 Mar 2016 Luca Bondi, Luca Baroffio, David Güera, Paolo Bestagini, Edward J. Delp, Stefano Tubaro

Detecting the camera model used to shoot a picture enables to solve a wide series of forensic problems, from copyright infringement to ownership attribution.

General Classification Image Forensics

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