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Neural networks are getting deeper and more computation-intensive nowadays. Quantization is a useful technique in deploying neural networks on hardware platforms and saving computation costs with negligible performance loss. However, recent…

机器学习 · 计算机科学 2021-01-26 Chang Song , Elias Fallon , Hai Li

We propose a novel certified defense method for Image Quality Assessment (IQA) models based on randomized smoothing with noise applied in the feature space rather than the input space. Unlike prior approaches that inject Gaussian noise…

计算机视觉与模式识别 · 计算机科学 2025-08-08 Ekaterina Shumitskaya , Dmitriy Vatolin , Anastasia Antsiferova

Image quality assessment (IQA) algorithm aims to quantify the human perception of image quality. Unfortunately, there is a performance drop when assessing the distortion images generated by generative adversarial network (GAN) with…

计算机视觉与模式识别 · 计算机科学 2022-04-25 Shanshan Lao , Yuan Gong , Shuwei Shi , Sidi Yang , Tianhe Wu , Jiahao Wang , Weihao Xia , Yujiu Yang

Blind image quality assessment (BIQA) aims to automatically evaluate the perceived quality of a single image, whose performance has been improved by deep learning-based methods in recent years. However, the paucity of labeled data somewhat…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Kai Zhao , Kun Yuan , Ming Sun , Mading Li , Xing Wen

Black-box adversarial attacks present a realistic threat to action recognition systems. Existing black-box attacks follow either a query-based approach where an attack is optimized by querying the target model, or a transfer-based approach…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Rohit Gupta , Naveed Akhtar , Gaurav Kumar Nayak , Ajmal Mian , Mubarak Shah

The goal in a blind image quality assessment (BIQA) model is to simulate the process of evaluating images by human eyes and accurately assess the quality of the image. Although many approaches effectively identify degradation, they do not…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Guangyi Yang , Yang Zhan. , Yuxuan Wang

Deep neural networks are facing severe threats from adversarial attacks. Most existing black-box attacks fool target model by generating either global perturbations or local patches. However, both global perturbations and local patches…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Chao Zhou , Yuan-Gen Wang , Guopu Zhu

Subjective perceptual image quality can be assessed in lab studies by human observers. Objective image quality assessment (IQA) refers to algorithms for estimation of the mean subjective quality ratings. Many such methods have been…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Markus Wagner , Hanhe Lin , Shujun Li , Dietmar Saupe

Face swapping has become a prominent research area in computer vision and image processing due to rapid technological advancements. The metric of measuring the quality in most face swapping methods relies on several distances between the…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Xinghui Zhou , Wenbo Zhou , Tianyi Wei , Shen Chen , Taiping Yao , Shouhong Ding , Weiming Zhang , Nenghai Yu

While image-to-text models have demonstrated significant advancements in various vision-language tasks, they remain susceptible to adversarial attacks. Existing white-box attacks on image-to-text models require access to the architecture,…

人工智能 · 计算机科学 2024-08-20 Qingyuan Zeng , Zhenzhong Wang , Yiu-ming Cheung , Min Jiang

Image Quality Assessment (IQA) methods typically overlook local manifold structures, leading to compromised discriminative capabilities in perceptual quality evaluation. To address this limitation, we present LML-IQA, an innovative…

计算机视觉与模式识别 · 计算机科学 2025-10-14 Zihao Huang , Runze Hu , Timin Gao , Yan Zhang , Yunhang Shen , Ke Li

Recent advancements in diffusion models have enabled high-fidelity and photorealistic image generation across diverse applications. However, these models also present security and privacy risks, including copyright violations, sensitive…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Jiacheng Shi , Yanfu Zhang , Huajie Shao , Ashley Gao

Recent studies have highlighted that deep neural networks (DNNs) are vulnerable to adversarial attacks, even in a black-box scenario. However, most of the existing black-box attack algorithms need to make a huge amount of queries to perform…

机器学习 · 统计学 2018-09-11 Yali Du , Meng Fang , Jinfeng Yi , Jun Cheng , Dacheng Tao

Black-box hard-label adversarial attack on text is a practical and challenging task, as the text data space is inherently discrete and non-differentiable, and only the predicted label is accessible. Research on this problem is still in the…

计算与语言 · 计算机科学 2024-02-06 Han Liu , Zhi Xu , Xiaotong Zhang , Feng Zhang , Fenglong Ma , Hongyang Chen , Hong Yu , Xianchao Zhang

Neural networks are vulnerable to adversarial examples, which are malicious inputs crafted to fool pre-trained models. Adversarial examples often exhibit black-box attacking transferability, which allows that adversarial examples crafted…

计算机视觉与模式识别 · 计算机科学 2020-03-04 ZhaoXin Huan , Yulong Wang , Xiaolu Zhang , Lin Shang , Chilin Fu , Jun Zhou

Adversarial example detection is known to be an effective adversarial defense method. Black-box attack, which is a more realistic threat and has led to various black-box adversarial training-based defense methods, however, does not attract…

计算机视觉与模式识别 · 计算机科学 2023-06-06 Yifei Gao , Zhiyu Lin , Yunfan Yang , Jitao Sang

Fooling people with highly realistic fake images generated with Deepfake or GANs brings a great social disturbance to our society. Many methods have been proposed to detect fake images, but they are vulnerable to adversarial perturbations…

计算机视觉与模式识别 · 计算机科学 2021-06-04 Quanyu Liao , Yuezun Li , Xin Wang , Bin Kong , Bin Zhu , Siwei Lyu , Youbing Yin , Qi Song , Xi Wu

Explainable AI (XAI) methods aim to describe the decision process of deep neural networks. Early XAI methods produced visual explanations, whereas more recent techniques generate multimodal explanations that include textual information and…

计算机视觉与模式识别 · 计算机科学 2024-09-30 Alina Elena Baia , Valentina Poggioni , Andrea Cavallaro

Black-box adversarial attack has attracted a lot of research interests for its practical use in AI safety. Compared with the white-box attack, a black-box setting is more difficult for less available information related to the attacked…

机器学习 · 计算机科学 2020-09-02 Linjun Zhou , Peng Cui , Yinan Jiang , Shiqiang Yang

Deep neural networks (DNNs) are known for their vulnerability to adversarial examples. These are examples that have undergone small, carefully crafted perturbations, and which can easily fool a DNN into making misclassifications at test…

机器学习 · 计算机科学 2019-07-01 Linxi Jiang , Xingjun Ma , Shaoxiang Chen , James Bailey , Yu-Gang Jiang