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Objective: Many studies on radar signal restoration in the literature focus on isolated restoration problems, such as denoising over a certain type of noise, while ignoring other types of artifacts. Additionally, these approaches usually…

机器学习 · 计算机科学 2024-12-11 Muhammad Uzair Zahid , Serkan Kiranyaz , Alper Yildirim , Moncef Gabbouj

Machine vision is susceptible to laser dazzle, where intense laser light can blind and distort its perception of the environment through oversaturation or permanent damage to sensor pixels. Here we employ a wavefront-coded phase mask to…

计算机视觉与模式识别 · 计算机科学 2024-03-07 Xiaopeng Peng , Erin F. Fleet , Abbie T. Watnik , Grover A. Swartzlander

Adversarial images are designed to mislead deep neural networks (DNNs), attracting great attention in recent years. Although several defense strategies achieved encouraging robustness against adversarial samples, most of them fail to…

机器学习 · 计算机科学 2020-02-25 Hang Yu , Aishan Liu , Xianglong Liu , Gengchao Li , Ping Luo , Ran Cheng , Jichen Yang , Chongzhi Zhang

Adversarial examples are crafted with imperceptible perturbations with the intent to fool neural networks. Against such attacks, adversarial training and its variants stand as the strongest defense to date. Previous studies have pointed out…

计算机视觉与模式识别 · 计算机科学 2020-01-30 Alvin Chan , Yi Tay , Yew Soon Ong , Jie Fu

Generative Adversarial Networks (GANs) are considered the state-of-the-art in the field of image generation. They learn the joint distribution of the training data and attempt to generate new data samples in high dimensional space following…

计算机视觉与模式识别 · 计算机科学 2020-04-29 Sherif Abdulatif , Karim Armanious , Fady Aziz , Urs Schneider , Bin Yang

In this paper we investigate the use of discriminative model learning through Convolutional Neural Networks (CNNs) for SAR image despeckling. The network uses a residual learning strategy, hence it does not recover the filtered image, but…

计算机视觉与模式识别 · 计算机科学 2017-05-04 G. Chierchia , D. Cozzolino , G. Poggi , L. Verdoliva

Improving the aesthetic quality of images is challenging and eager for the public. To address this problem, most existing algorithms are based on supervised learning methods to learn an automatic photo enhancer for paired data, which…

计算机视觉与模式识别 · 计算机科学 2021-01-06 Zhangkai Ni , Wenhan Yang , Shiqi Wang , Lin Ma , Sam Kwong

Deep neural networks give state-of-the-art accuracy for reconstructing images from few and noisy measurements, a problem arising for example in accelerated magnetic resonance imaging (MRI). However, recent works have raised concerns that…

图像与视频处理 · 电气工程与系统科学 2021-06-14 Mohammad Zalbagi Darestani , Akshay S. Chaudhari , Reinhard Heckel

Remote sensing images are used for a variety of analyses, from agricultural monitoring, to disaster relief, to resource planning, among others. The images can be corrupted due to a number of reasons, including instrument errors and natural…

图像与视频处理 · 电气工程与系统科学 2020-04-10 Anna Petrovskaia , Raghavendra B. Jana , Ivan V. Oseledets

As humans, we inherently perceive images based on their predominant features, and ignore noise embedded within lower bit planes. On the contrary, Deep Neural Networks are known to confidently misclassify images corrupted with meticulously…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Sravanti Addepalli , Vivek B. S. , Arya Baburaj , Gaurang Sriramanan , R. Venkatesh Babu

Adversarial examples have shown that albeit highly accurate, models learned by machines, differently from humans, have many weaknesses. However, humans' perception is also fundamentally different from machines, because we do not see the…

计算机视觉与模式识别 · 计算机科学 2020-12-01 Danilo Vasconcellos Vargas , Bingli Liao , Takahiro Kanzaki

In recent years, deep neural network approaches have been widely adopted for machine learning tasks, including classification. However, they were shown to be vulnerable to adversarial perturbations: carefully crafted small perturbations can…

计算机视觉与模式识别 · 计算机科学 2018-05-21 Pouya Samangouei , Maya Kabkab , Rama Chellappa

We study two important concepts in adversarial deep learning---adversarial training and generative adversarial network (GAN). Adversarial training is the technique used to improve the robustness of discriminator by combining adversarial…

机器学习 · 计算机科学 2019-04-17 Xuanqing Liu , Cho-Jui Hsieh

In this paper we propose an attentive recurrent generative adversarial network (ARGAN) to detect and remove shadows in an image. The generator consists of multiple progressive steps. At each step a shadow attention detector is firstly…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Bin Ding , Chengjiang Long , Ling Zhang , Chunxia Xiao

Neural networks have revolutionized various domains, exhibiting remarkable accuracy in tasks like natural language processing and computer vision. However, their vulnerability to slight alterations in input samples poses challenges,…

计算机视觉与模式识别 · 计算机科学 2023-11-15 Shashank Kotyan , Danilo Vasconcellos Vargas

Generative Adversarial Networks (GAN) have demonstrated the potential to recover realistic details for single image super-resolution (SISR). To further improve the visual quality of super-resolved results, PIRM2018-SR Challenge employed…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Wenlong Zhang , Yihao Liu , Chao Dong , Yu Qiao

GAN-based image restoration inverts the generative process to repair images corrupted by known degradations. Existing unsupervised methods must be carefully tuned for each task and degradation level. In this work, we make StyleGAN image…

计算机视觉与模式识别 · 计算机科学 2023-06-23 Yohan Poirier-Ginter , Jean-François Lalonde

Although many methods have been proposed to deal with nature image super-resolution (SR) and get impressive performance, the text images SR is not good due to their ignorance of document images. In this paper, we propose a matting-based…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Yubao Liu , Kai Lin

We propose to improve unconditional Generative Adversarial Networks (GAN) by training the self-supervised learning with the adversarial process. In particular, we apply self-supervised learning via the geometric transformation on input…

计算机视觉与模式识别 · 计算机科学 2019-05-15 Ngoc-Trung Tran , Viet-Hung Tran , Ngoc-Bao Nguyen , Ngai-Man Cheung

Ideally, what confuses neural network should be confusing to humans. However, recent experiments have shown that small, imperceptible perturbations can change the network prediction. To address this gap in perception, we propose a novel…

机器学习 · 计算机科学 2018-10-31 Alexander Matyasko , Lap-Pui Chau