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Target detection systems identify targets by localizing their coordinates on the input image of interest. This is ideally achieved by labeling each pixel in an image as a background or a potential target pixel. Deep Convolutional Neural…

Artificial Intelligence · Computer Science 2021-08-31 Uche M. Osahor , Nasser M. Nasrabadi

Generative adversarial networks (GANs) are successfully used for image synthesis but are known to face instability during training. In contrast, probabilistic diffusion models (DMs) are stable and generate high-quality images, at the cost…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Edgardo Solano-Carrillo , Angel Bueno Rodriguez , Borja Carrillo-Perez , Yannik Steiniger , Jannis Stoppe

Generative adversarial networks or GANs are a type of generative modeling framework. GANs involve a pair of neural networks engaged in a competition in iteratively creating fake data, indistinguishable from the real data. One notable…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Eric J. Nunn , Pejman Khadivi , Shadrokh Samavi

Proposed are alternative generator architectures for Boundary Equilibrium Generative Adversarial Networks, motivated by Learning from Simulated and Unsupervised Images through Adversarial Training. It disentangles the need for a noise-based…

Computer Vision and Pattern Recognition · Computer Science 2021-08-29 Alex Nasser

Neural networks are prone to adversarial attacks. In general, such attacks deteriorate the quality of the input by either slightly modifying most of its pixels, or by occluding it with a patch. In this paper, we propose a method that keeps…

Computer Vision and Pattern Recognition · Computer Science 2019-10-18 Konrad Zolna , Michal Zajac , Negar Rostamzadeh , Pedro O. Pinheiro

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

In this research, we introduce an innovative method for synthesizing medical images using generative adversarial networks (GANs). Our proposed GANs method demonstrates the capability to produce realistic synthetic images even when trained…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Yinqiu Feng , Bo Zhang , Lingxi Xiao , Yutian Yang , Tana Gegen , Zexi Chen

Most of the adversarial attack methods suffer from large perceptual distortions such as visible artifacts, when the attack strength is relatively high. These perceptual distortions contain a certain portion which contributes less to the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Ruijie Yang , Yunhong Wang , Ruikui Wang , Yuanfang Guo

During the image acquisition process, noise is usually added to the data mainly due to physical limitations of the acquisition sensor, and also regarding imprecisions during the data transmission and manipulation. In that sense, the…

Machine Learning · Computer Science 2021-01-20 Rafael G. Pires , Daniel F. S. Santos , Marcos C. S. Santana , Claudio F. G. Santos , Joao P. Papa

Two recently introduced criteria for estimation of generative models are both based on a reduction to binary classification. Noise-contrastive estimation (NCE) is an estimation procedure in which a generative model is trained to be able to…

Machine Learning · Statistics 2015-05-22 Ian J. Goodfellow

Convolutional Neural Networks (CNNs) have advanced existing medical systems for automatic disease diagnosis. However, a threat to these systems arises that adversarial attacks make CNNs vulnerable. Inaccurate diagnosis results make a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Gege Qi , Lijun Gong , Yibing Song , Kai Ma , Yefeng Zheng

Most existing zero-shot learning methods consider the problem as a visual semantic embedding one. Given the demonstrated capability of Generative Adversarial Networks(GANs) to generate images, we instead leverage GANs to imagine unseen…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Yizhe Zhu , Mohamed Elhoseiny , Bingchen Liu , Xi Peng , Ahmed Elgammal

Standard methods for generating adversarial examples for neural networks do not consistently fool neural network classifiers in the physical world due to a combination of viewpoint shifts, camera noise, and other natural transformations,…

Computer Vision and Pattern Recognition · Computer Science 2018-06-08 Anish Athalye , Logan Engstrom , Andrew Ilyas , Kevin Kwok

We propose an approach to distinguish between correct and incorrect image classifications. Our approach can detect misclassifications which either occur $\it{unintentionally}$ ("natural errors"), or due to…

Machine Learning · Computer Science 2019-02-04 Yuval Bahat , Michal Irani , Gregory Shakhnarovich

The Generative Adversarial Network (GAN) is a state-of-the-art technique in the field of deep learning. A number of recent papers address the theory and applications of GANs in various fields of image processing. Fewer studies, however,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Shuyue Guan , Murray Loew

This paper presents a novel convolutional layer, called perturbed convolution (PConv), which focuses on achieving two goals simultaneously: improving the generative adversarial network (GAN) performance and alleviating the memorization…

Computer Vision and Pattern Recognition · Computer Science 2021-12-23 Seung Park , Yoon-Jae Yeo , Yong-Goo Shin

Most existing adversarial attack methods for remote sensing images merely add adversarial perturbations or patches, resulting in unnatural modifications. Clouds are common atmospheric effects in remote sensing images. Generating clouds on…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Fei Ma , Yuqiang Feng , Fan Zhang , Yongsheng Zhou

Recently, text-to-image generative models have been misused to create unauthorized malicious images of individuals, posing a growing social problem. Previous solutions, such as Anti-DreamBooth, add adversarial noise to images to protect…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Takuto Onikubo , Yusuke Matsui

Anomaly detection is a fundamental problem in computer vision area with many real-world applications. Given a wide range of images belonging to the normal class, emerging from some distribution, the objective of this task is to construct…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Chengwei Chen , Pan Chen , Haichuan Song , Yiqing Tao , Yuan Xie , Shouhong Ding , Lizhuang Ma

We introduce a novel noisy sorting model motivated by the Just Noticeable Difference (JND) model from experimental psychology. The goal of our model is to capture the low quality of the data that are collected from crowdsourcing…

Data Structures and Algorithms · Computer Science 2023-10-24 Ellen Vitercik , Manolis Zampetakis , David Zhang