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Adversarial attacks in the physical world pose a significant threat to the security of vision-based systems, such as facial recognition and autonomous driving. Existing adversarial patch methods primarily focus on improving attack…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Chaoqun Li , Huanqian Yan , Lifeng Zhou , Tairan Chen , Zhuodong Liu , Hang Su

The rapid growth of deep learning has brought about powerful models that can handle various tasks, like identifying images and understanding language. However, adversarial attacks, an unnoticed alteration, can deceive models, leading to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Sampriti Soor , Alik Pramanick , Jothiprakash K , Arijit Sur

Machine learning systems based on deep neural networks, being able to produce state-of-the-art results on various perception tasks, have gained mainstream adoption in many applications. However, they are shown to be vulnerable to…

Machine Learning · Computer Science 2018-01-16 Bo Luo , Yannan Liu , Lingxiao Wei , Qiang Xu

Crowd counting is an important task in computer vision, which has many applications in video surveillance. Although the regression-based framework has achieved great improvements for crowd counting, how to improve the discriminative power…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Biyun Sheng , Chunhua Shen , Guosheng Lin , Jun Li , Wankou Yang , Changyin Sun

State-of-the-art deep neural networks suffer from a fundamental problem - they misclassify adversarial examples formed by applying small perturbations to inputs. In this paper, we present a new psychometric perceptual adversarial similarity…

Computer Vision and Pattern Recognition · Computer Science 2016-05-18 Andras Rozsa , Ethan M. Rudd , Terrance E. Boult

Occlusions, complex backgrounds, scale variations and non-uniform distributions present great challenges for crowd counting in practical applications. In this paper, we propose a novel method using an attention model to exploit head…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Youmei Zhang , Chunluan Zhou , Faliang Chang , Alex C. Kot

Adversarial patches, often used to provide physical stealth protection for critical assets and assess perception algorithm robustness, usually neglect the need for visual harmony with the background environment, making them easily…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Chaoqun Li , Zhuodong Liu , Huanqian Yan , Hang Su

Adversarial examples are perturbed inputs designed to fool machine learning models. Most recent works on adversarial examples for image classification focus on directly modifying pixels with minor perturbations. A common requirement in all…

Machine Learning · Computer Science 2018-12-27 Dan Peng , Zizhan Zheng , Xiaofeng Zhang

Crowd counting is a challenging task due to the large variations in crowd distributions. Previous methods tend to tackle the whole image with a single fixed structure, which is unable to handle diverse complicated scenes with different…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Zhikang Zou , Yu Cheng , Xiaoye Qu , Shouling Ji , Xiaoxiao Guo , Pan Zhou

The generation of adversarial inputs has become a crucial issue in establishing the robustness and trustworthiness of deep neural nets, especially when they are used in safety-critical application domains such as autonomous vehicles and…

Machine Learning · Computer Science 2024-01-03 Tooba Khan , Kumar Madhukar , Subodh Vishnu Sharma

Adversarial examples have been demonstrated to threaten many computer vision tasks including object detection. However, the existing attacking methods for object detection have two limitations: poor transferability, which denotes that the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-14 Xingxing Wei , Siyuan Liang , Ning Chen , Xiaochun Cao

Applications such as autonomous vehicles and medical screening use deep learning models to localize and identify hundreds of objects in a single frame. In the past, it has been shown how an attacker can fool these models by placing an…

Computer Vision and Pattern Recognition · Computer Science 2021-06-03 Yisroel Mirsky

This paper presents a novel data-driven crowd simulation method that can mimic the observed traffic of pedestrians in a given environment. Given a set of observed trajectories, we use a recent form of neural networks, Generative Adversarial…

Graphics · Computer Science 2019-05-24 Javad Amirian , Wouter van Toll , Jean-Bernard Hayet , Julien Pettré

In predictive process monitoring, predictive models are vulnerable to adversarial attacks, where input perturbations can lead to incorrect predictions. Unlike in computer vision, where these perturbations are designed to be imperceptible to…

Machine Learning · Computer Science 2024-11-22 Alexander Stevens , Jari Peeperkorn , Johannes De Smedt , Jochen De Weerdt

Black box attacks, where adversaries have limited knowledge of the target model, pose a significant threat to machine learning systems. Adversarial examples generated with a substitute model often suffer from limited transferability to the…

Machine Learning · Computer Science 2024-10-22 Bar Avraham , Yisroel Mirsky

Crowd counting is a challenging yet critical task in computer vision with applications ranging from public safety to urban planning. Recent advances using Convolutional Neural Networks (CNNs) that estimate density maps have shown…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Abhinav Sagar

Most state-of-the-art crowd counting methods use color (RGB) images to learn the density map of the crowd. However, these methods often struggle to achieve higher accuracy in densely crowded scenes with poor illumination. Recently, some…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Muhammad Asif Khan , Hamid Menouar , Ridha Hamila

Recently, some research show that deep neural networks are vulnerable to the adversarial attacks, the well-trainned samples or patches could be used to trick the neural network detector or human visual perception. However, these adversarial…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Xianyi Chen , Fazhan Liu , Dong Jiang , Kai Yan

With the development of deep neural networks, the performance of crowd counting and pixel-wise density estimation are continually being refreshed. Despite this, there are still two challenging problems in this field: 1) current supervised…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Junyu Gao , Yuan Yuan , Qi Wang

With the excellent accuracy and feasibility, the Neural Networks have been widely applied into the novel intelligent applications and systems. However, with the appearance of the Adversarial Attack, the NN based system performance becomes…

Computer Vision and Pattern Recognition · Computer Science 2018-06-14 Fuxun Yu , Qide Dong , Xiang Chen