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Deep neural networks have become the driving force of modern image recognition systems. However, the vulnerability of neural networks against adversarial attacks poses a serious threat to the people affected by these systems. In this paper,…

Machine Learning · Computer Science 2021-12-13 Seungyong Moon , Gaon An , Hyun Oh Song

We propose a novel method for creating adversarial examples. Instead of perturbing pixels, we use an encoder-decoder representation of the input image and perturb intermediate layers in the decoder. This changes the high-level features…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Vojtěch Čermák , Lukáš Adam

Recent research has found that neural networks are vulnerable to several types of adversarial attacks, where the input samples are modified in such a way that the model produces a wrong prediction that misclassifies the adversarial sample.…

Machine Learning · Computer Science 2022-10-07 Jary Pomponi , Simone Scardapane , Aurelio Uncini

Despite the enormous performance of deepneural networks (DNNs), recent studies have shown theirvulnerability to adversarial examples (AEs), i.e., care-fully perturbed inputs designed to fool the targetedDNN. Currently, the literature is…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Anouar Kherchouche , Sid Ahmed Fezza , Wassim Hamidouche

CNNs perform remarkably well when the training and test distributions are i.i.d, but unseen image corruptions can cause a surprisingly large drop in performance. In various real scenarios, unexpected distortions, such as random noise,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Tonmoy Saikia , Cordelia Schmid , Thomas Brox

It is well known that a determined adversary can fool a neural network by making imperceptible adversarial perturbations to an image. Recent studies have shown that these perturbations can be detected even without information about the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Siddharth Krishna Kumar

Most existing dehazing algorithms often use hand-crafted features or Convolutional Neural Networks (CNN)-based methods to generate clear images using pixel-level Mean Square Error (MSE) loss. The generated images generally have better…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Yanting Pei , Yaping Huang , Xingyuan Zhang

By adding human-imperceptible noise to clean images, the resultant adversarial examples can fool other unknown models. Features of a pixel extracted by deep neural networks (DNNs) are influenced by its surrounding regions, and different…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Lianli Gao , Qilong Zhang , Jingkuan Song , Xianglong Liu , Heng Tao Shen

Pruning is a well-known mechanism for reducing the computational cost of deep convolutional networks. However, studies have shown the potential of pruning as a form of regularization, which reduces overfitting and improves generalization.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Artur Jordao , Helio Pedrini

The attacks on the neural-network-based classifiers using adversarial images have gained a lot of attention recently. An adversary can purposely generate an image that is indistinguishable from a innocent image for a human being but is…

Cryptography and Security · Computer Science 2019-07-02 Nir Morgulis , Alexander Kreines , Shachar Mendelowitz , Yuval Weisglass

Art restoration is crucial for preserving cultural heritage, but traditional methods have limitations in faithfully reproducing original artworks while addressing issues like fading, staining, and damage. We present an innovative approach…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Sankar B. , Mukil Saravanan , Kalaivanan Kumar , Siri Dubbaka

In this paper, we propose Code-Bridged Classifier (CBC), a framework for making a Convolutional Neural Network (CNNs) robust against adversarial attacks without increasing or even by decreasing the overall models' computational complexity.…

Adversarial attacks are small, carefully crafted perturbations, imperceptible to the naked eye; that when added to an image cause deep learning models to misclassify the image with potentially detrimental outcomes. With the rise of…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Rohan Reddy Mekala , Gudjon Einar Magnusson , Adam Porter , Mikael Lindvall , Madeline Diep

Neural networks are being applied in many tasks related to IoT with encouraging results. For example, neural networks can precisely detect human, objects and animal via surveillance camera for security purpose. However, neural networks have…

Computer Vision and Pattern Recognition · Computer Science 2019-01-11 Dang Duy Thang , Toshihiro Matsui

In the light of recent analyses on privacy-concerning scene revelation from visual descriptors, we develop descriptors that conceal the input image content. In particular, we propose an adversarial learning framework for training visual…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Tony Ng , Hyo Jin Kim , Vincent Lee , Daniel DeTone , Tsun-Yi Yang , Tianwei Shen , Eddy Ilg , Vassileios Balntas , Krystian Mikolajczyk , Chris Sweeney

Neural Networks are infamously sensitive to small perturbations in their inputs, making them vulnerable to adversarial attacks. This project evaluates the performance of Denoising Diffusion Probabilistic Models (DDPM) as a purification…

Machine Learning · Computer Science 2023-01-18 Lars Lien Ankile , Anna Midgley , Sebastian Weisshaar

Deep neural networks (DNNs) have been shown to be vulnerable to adversarial attacks -- subtle, perceptually indistinguishable perturbations of inputs that change the response of the model. In the context of vision, we hypothesize that an…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Muhammad A. Shah , Bhiksha Raj

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

Convolutional neural networks (CNNs) have achieved beyond human-level accuracy in the image classification task and are widely deployed in real-world environments. However, CNNs show vulnerability to adversarial perturbations that are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Desheng Wang , Weidong Jin , Yunpu Wu , Aamir Khan

Standard adversarial attacks change the predicted class label of a selected image by adding specially tailored small perturbations to its pixels. In contrast, a universal perturbation is an update that can be added to any image in a broad…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Ali Shafahi , Mahyar Najibi , Zheng Xu , John Dickerson , Larry S. Davis , Tom Goldstein