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Machine learning models have demonstrated vulnerability to adversarial attacks, more specifically misclassification of adversarial examples. In this paper, we propose a one-off and attack-agnostic Feature Manipulation (FM)-Defense to detect…

Machine Learning · Computer Science 2020-04-23 Shuo Wang , Tianle Chen , Surya Nepal , Carsten Rudolph , Marthie Grobler , Shangyu Chen

Generative Adversarial Networks (GANs) have gained momentum for their ability to model image distributions. They learn to emulate the training set and that enables sampling from that domain and using the knowledge learned for useful…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Abdullah Hamdi , Bernard Ghanem

Deep neural networks (DNNs) are threatened by adversarial examples. Adversarial detection, which distinguishes adversarial images from benign images, is fundamental for robust DNN-based services. Image transformation is one of the most…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Hui Liu , Bo Zhao , Yuefeng Peng , Weidong Li , Peng Liu

We propose a new approach to video face recognition. Our component-wise feature aggregation network (C-FAN) accepts a set of face images of a subject as an input, and outputs a single feature vector as the face representation of the set for…

Computer Vision and Pattern Recognition · Computer Science 2019-07-04 Sixue Gong , Yichun Shi , Anil K. Jain

We propose a novel autoencoding model called Pairwise Augmented GANs. We train a generator and an encoder jointly and in an adversarial manner. The generator network learns to sample realistic objects. In turn, the encoder network at the…

Machine Learning · Statistics 2018-10-12 Aibek Alanov , Max Kochurov , Daniil Yashkov , Dmitry Vetrov

Adversarial examples are intentionally perturbed images that mislead classifiers. These images can, however, be easily detected using denoising algorithms, when high-frequency spatial perturbations are used, or can be noticed by humans,…

Machine Learning · Computer Science 2020-03-06 Ali Shahin Shamsabadi , Changjae Oh , Andrea Cavallaro

Studies show that Deep Neural Network (DNN)-based image classification models are vulnerable to maliciously constructed adversarial examples. However, little effort has been made to investigate how DNN-based image retrieval models are…

Computer Vision and Pattern Recognition · Computer Science 2019-07-15 Guoping Zhao , Mingyu Zhang , Jiajun Liu , Ji-Rong Wen

Modern neural networks excel at image classification, yet they remain vulnerable to common image corruptions such as blur, speckle noise or fog. Recent methods that focus on this problem, such as AugMix and DeepAugment, introduce defenses…

Computer Vision and Pattern Recognition · Computer Science 2021-12-20 Dan A. Calian , Florian Stimberg , Olivia Wiles , Sylvestre-Alvise Rebuffi , Andras Gyorgy , Timothy Mann , Sven Gowal

Segmentation of skin lesions is considered as an important step in computer aided diagnosis (CAD) for automated melanoma diagnosis. In recent years, segmentation methods based on fully convolutional networks (FCN) have achieved great…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Lei Bi , Dagan Feng , Jinman Kim

A common problem in computer vision -- particularly in medical applications -- is a lack of sufficiently diverse, large sets of training data. These datasets often suffer from severe class imbalance. As a result, networks often overfit and…

Image and Video Processing · Electrical Eng. & Systems 2021-07-08 Shobhita Sundaram , Neha Hulkund

Adversarial examples have been demonstrated to threaten many computer vision tasks including object detection. However, the existing attacking methods for object detection have two limitations: poor transferability, which denotes that the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Xingxing Wei , Siyuan Liang , Ning Chen , Xiaochun Cao

Acquisition of data in task-specific applications of machine learning like plant disease recognition is a costly endeavor owing to the requirements of professional human diligence and time constraints. In this paper, we present a simple…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Haseeb Nazki , Sook Yoon , Alvaro Fuentes , Dong Sun Park

Recently, convolutional neural networks (CNNs) have achieved great improvements in single image dehazing and attained much attention in research. Most existing learning-based dehazing methods are not fully end-to-end, which still follow the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Yu Dong , Yihao Liu , He Zhang , Shifeng Chen , Yu Qiao

Audio-visual speech recognition (AVSR) attracts a surge of research interest recently by leveraging multimodal signals to understand human speech. Mainstream approaches addressing this task have developed sophisticated architectures and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-21 Yuchen Hu , Chen Chen , Ruizhe Li , Heqing Zou , Eng Siong Chng

Image augmentations applied during training are crucial for the generalization performance of image classifiers. Therefore, a large body of research has focused on finding the optimal augmentation policy for a given task. Yet, RandAugment…

Machine Learning · Computer Science 2021-12-06 Arno Blaas , Xavier Suau , Jason Ramapuram , Nicholas Apostoloff , Luca Zappella

Generating images via the generative adversarial network (GAN) has attracted much attention recently. However, most of the existing GAN-based methods can only produce low-resolution images of limited quality. Directly generating…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Yong Guo , Qi Chen , Jian Chen , Qingyao Wu , Qinfeng Shi , Mingkui Tan

Adversarial data can lead to malfunction of deep learning applications. It is essential to develop deep learning models that are robust to adversarial data while accurate on standard, clean data. In this study, we proposed a novel…

Image and Video Processing · Electrical Eng. & Systems 2024-02-15 Degan Hao , Dooman Arefan , Margarita Zuley , Wendie Berg , Shandong Wu

Convolutional neural network-based medical image classifiers have been shown to be especially susceptible to adversarial examples. Such instabilities are likely to be unacceptable in the future of automated diagnoses. Though statistical…

Computer Vision and Pattern Recognition · Computer Science 2022-10-27 Isaac Wasserman

The rapid evolution of generative adversarial networks (GANs) and diffusion models has made synthetic media increasingly realistic, raising societal concerns around misinformation, identity fraud, and digital trust. Existing deepfake…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Sales Aribe

Over the last few years, convolutional neural networks (CNNs) have proved to reach super-human performance in visual recognition tasks. However, CNNs can easily be fooled by adversarial examples, i.e., maliciously-crafted images that force…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Federico Nesti , Alessandro Biondi , Giorgio Buttazzo