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Previous work has suggested that preprocessing images through lossy compression can defend against adversarial perturbations, but comprehensive attack evaluations have been lacking. In this paper, we construct strong white-box and adaptive…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Samuel Räber , Till Aczel , Andreas Plesner , Roger Wattenhofer

Adversarial attacks meticulously generate minuscule, imperceptible perturbations to images to deceive neural networks. Counteracting these, adversarial purification methods seek to transform adversarial input samples into clean output…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Sitong Liu , Zhichao Lian , Shuangquan Zhang , Liang Xiao

We propose a test-time defense mechanism against adversarial attacks: imperceptible image perturbations that significantly alter the predictions of a model. Unlike existing methods that rely on feature filtering or smoothing, which can lead…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Dong Lao , Yuxiang Zhang , Haniyeh Ehsani Oskouie , Yangchao Wu , Alex Wong , Stefano Soatto

The improved semantic understanding of vision-language pretrained (VLP) models has made it increasingly difficult to protect publicly posted images from being exploited by search engines and other similar tools. In this context, this paper…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Xuelin Shen , Jiayin Xu , Kangsheng Yin , Wenhan Yang

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…

计算机视觉与模式识别 · 计算机科学 2021-12-20 Dan A. Calian , Florian Stimberg , Olivia Wiles , Sylvestre-Alvise Rebuffi , Andras Gyorgy , Timothy Mann , Sven Gowal

Deep Learning algorithms have achieved the state-of-the-art performance for Image Classification and have been used even in security-critical applications, such as biometric recognition systems and self-driving cars. However, recent works…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Gabriel Resende Machado , Eugênio Silva , Ronaldo Ribeiro Goldschmidt

Weakly-supervised semantic segmentation under image tags supervision is a challenging task as it directly associates high-level semantic to low-level appearance. To bridge this gap, in this paper, we propose an iterative bottom-up and…

计算机视觉与模式识别 · 计算机科学 2018-06-13 Xiang Wang , Shaodi You , Xi Li , Huimin Ma

Since convolutional neural networks perform well in learning generalizable image priors from large-scale data, these models have been widely used in image denoising tasks. However, the computational complexity increases dramatically as well…

图像与视频处理 · 电气工程与系统科学 2022-07-29 Yuanfan Zhang , Gen Li , Lei Sun

Adversarial attacks expose a fundamental vulnerability in modern deep vision models by exploiting their dependence on dense, pixel-level representations that are highly sensitive to imperceptible perturbations. Traditional defense…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Jingjie He , Weijie Liang , Zihan Shan , Matthew Caesar

In this paper, we propose a fast deep learning method for object saliency detection using convolutional neural networks. In our approach, we use a gradient descent method to iteratively modify the input images based on the pixel-wise…

计算机视觉与模式识别 · 计算机科学 2016-02-02 Hengyue Pan , Hui Jiang

Reliable skin cancer diagnosis models play an essential role in early screening and medical intervention. Prevailing computer-aided skin cancer classification systems employ deep learning approaches. However, recent studies reveal their…

计算机视觉与模式识别 · 计算机科学 2024-02-07 Yongwei Wang , Yuan Li , Zhiqi Shen , Yuhui Qiao

Deep learning models for image classification have become standard tools in recent years. A well known vulnerability of these models is their susceptibility to adversarial examples. These are generated by slightly altering an image of a…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Haim Fisher , Moni Shahar , Yehezkel S. Resheff

Biological vision adopts a coarse-to-fine information processing pathway, from initial visual detection and binding of salient features of a visual scene, to the enhanced and preferential processing given relevant stimuli. On the contrary,…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Ioannis Lelekas , Nergis Tomen , Silvia L. Pintea , Jan C. van Gemert

We present Deep Region Competition (DRC), an algorithm designed to extract foreground objects from images in a fully unsupervised manner. Foreground extraction can be viewed as a special case of generic image segmentation that focuses on…

计算机视觉与模式识别 · 计算机科学 2023-10-06 Peiyu Yu , Sirui Xie , Xiaojian Ma , Yixin Zhu , Ying Nian Wu , Song-Chun Zhu

To defend against manipulation of image content, such as splicing, copy-move, and removal, we develop a Progressive Spatio-Channel Correlation Network (PSCC-Net) to detect and localize image manipulations. PSCC-Net processes the image in a…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Xiaohong Liu , Yaojie Liu , Jun Chen , Xiaoming Liu

We propose a novel attention model that can accurately attends to target objects of various scales and shapes in images. The model is trained to gradually suppress irrelevant regions in an input image via a progressive attentive process…

计算机视觉与模式识别 · 计算机科学 2018-08-08 Paul Hongsuck Seo , Zhe Lin , Scott Cohen , Xiaohui Shen , Bohyung Han

With the rise in popularity of machine and deep learning models, there is an increased focus on their vulnerability to malicious inputs. These adversarial examples drift model predictions away from the original intent of the network and are…

计算机视觉与模式识别 · 计算机科学 2020-03-11 Richard Tran , David Patrick , Michael Geyer , Amanda Fernandez

Adversarial attacks of deep neural networks have been intensively studied on image, audio, natural language, patch, and pixel classification tasks. Nevertheless, as a typical, while important real-world application, the adversarial attacks…

计算机视觉与模式识别 · 计算机科学 2020-07-23 Qing Guo , Xiaofei Xie , Felix Juefei-Xu , Lei Ma , Zhongguo Li , Wanli Xue , Wei Feng , Yang Liu

Deep neural networks (DNNs) have been demonstrated to be vulnerable to adversarial examples. Specifically, adding imperceptible perturbations to clean images can fool the well trained deep neural networks. In this paper, we propose an…

计算机视觉与模式识别 · 计算机科学 2019-07-02 Xiaojun Jia , Xingxing Wei , Xiaochun Cao , Hassan Foroosh

Semantic segmentation is a task that traditionally requires a large dataset of pixel-level ground truth labels, which is time-consuming and expensive to obtain. Recent advancements in the weakly-supervised setting show that reasonable…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Erik Stammes , Tom F. H. Runia , Michael Hofmann , Mohsen Ghafoorian