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Adversarial patch-based attacks have shown to be a major deterrent towards the reliable use of machine learning models. These attacks involve the strategic modification of localized patches or specific image areas to deceive trained machine…

Cryptography and Security · Computer Science 2023-11-22 Nandish Chattopadhyay , Amira Guesmi , Muhammad Abdullah Hanif , Bassem Ouni , Muhammad Shafique

Recent advances on Vision Transformer (ViT) and its improved variants have shown that self-attention-based networks surpass traditional Convolutional Neural Networks (CNNs) in most vision tasks. However, existing ViTs focus on the standard…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Xiaofeng Mao , Gege Qi , Yuefeng Chen , Xiaodan Li , Ranjie Duan , Shaokai Ye , Yuan He , Hui Xue

By adding human-imperceptible noise to clean images, the resultant adversarial examples can fool other unknown models. Features of a pixel extracted by deep neural networks (DNNs) are influenced by its surrounding regions, and different…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Lianli Gao , Qilong Zhang , Jingkuan Song , Xianglong Liu , Heng Tao Shen

Vision Transformers have achieved great success in computer visions, delivering exceptional performance across various tasks. However, their inherent reliance on sequential input enforces the manual partitioning of images into patch…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Changzhen Li , Jie Zhang , Yang Wei , Zhilong Ji , Jinfeng Bai , Shiguang Shan

Deep learning image classification is vulnerable to adversarial attack, even if the attacker changes just a small patch of the image. We propose a defense against patch attacks based on partially occluding the image around each candidate…

Machine Learning · Computer Science 2020-04-30 Michael McCoyd , Won Park , Steven Chen , Neil Shah , Ryan Roggenkemper , Minjune Hwang , Jason Xinyu Liu , David Wagner

The objective of dense material segmentation is to identify the material categories for every image pixel. Recent studies adopt image patches to extract material features. Although the trained networks can improve the segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Yuwen Heng , Srinandan Dasmahapatra , Hansung Kim

We present an efficient approach for Masked Image Modeling (MIM) with hierarchical Vision Transformers (ViTs), allowing the hierarchical ViTs to discard masked patches and operate only on the visible ones. Our approach consists of three key…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Lang Huang , Shan You , Mingkai Zheng , Fei Wang , Chen Qian , Toshihiko Yamasaki

Recently, the vision transformer (ViT) has made breakthroughs in image recognition. Its self-attention mechanism (MSA) can extract discriminative labeling information of different pixel blocks to improve image classification accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Chao Hu , Liqiang Zhu , Weibin Qiu , Weijie Wu

Video transformers have recently emerged as an effective alternative to convolutional networks for action classification. However, most prior video transformers adopt either global space-time attention or hand-defined strategies to compare…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Jue Wang , Lorenzo Torresani

While recent face anti-spoofing methods perform well under the intra-domain setups, an effective approach needs to account for much larger appearance variations of images acquired in complex scenes with different sensors for robust…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Hsin-Ping Huang , Deqing Sun , Yaojie Liu , Wen-Sheng Chu , Taihong Xiao , Jinwei Yuan , Hartwig Adam , Ming-Hsuan Yang

Self-supervised learning (SSL) with vision transformers (ViTs) has proven effective for representation learning as demonstrated by the impressive performance on various downstream tasks. Despite these successes, existing ViT-based SSL…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Chaitanya Devaguptapu , Sumukh Aithal , Shrinivas Ramasubramanian , Moyuru Yamada , Manohar Kaul

Vision Transformers (ViTs) have become prominent models for solving various vision tasks. However, the interpretability of ViTs has not kept pace with their promising performance. While there has been a surge of interest in developing {\it…

Computer Vision and Pattern Recognition · Computer Science 2025-05-02 Yao Qiang , Chengyin Li , Prashant Khanduri , Dongxiao Zhu

High-resolution images offer more information about scenes that can improve model accuracy. However, the dominant model architecture in computer vision, the vision transformer (ViT), cannot effectively leverage larger images without…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Anthony Fuller , Daniel G. Kyrollos , Yousef Yassin , James R. Green

Randomized smoothing is the primary certified robustness method for accessing the robustness of deep learning models to adversarial perturbations in the l2-norm, by adding isotropic Gaussian noise to the input image and returning the…

Machine Learning · Computer Science 2024-04-09 Chengyan Fu , Wenjie Wang

Vision Transformers (ViTs) that leverage self-attention mechanism have shown superior performance on many classical vision tasks compared to convolutional neural networks (CNNs) and gain increasing popularity recently. Existing ViTs works…

Cryptography and Security · Computer Science 2024-04-29 Xinghua Xue , Cheng Liu , Ying Wang , Bing Yang , Tao Luo , Lei Zhang , Huawei Li , Xiaowei Li

The rectangular tokens common to vision transformer methods for visual recognition can strongly affect performance of these methods due to incorporation of information outside the objects to be recognized. This paper introduces PaW-ViT,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Deeksha Arun , Kevin W. Bowyer , Patrick Flynn

Adversarial examples have attracted widespread attention in security-critical applications because of their transferability across different models. Although many methods have been proposed to boost adversarial transferability, a gap still…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Xingxing Wei , Shiji Zhao

Adversarial attacks, particularly patch attacks, pose significant threats to the robustness and reliability of deep learning models. Developing reliable defenses against patch attacks is crucial for real-world applications. This paper…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Caixin Kang , Yinpeng Dong , Zhengyi Wang , Shouwei Ruan , Yubo Chen , Hang Su , Xingxing Wei

The Vision Transformer (ViT) demonstrates exceptional performance in various computer vision tasks. Attention is crucial for ViT to capture complex wide-ranging relationships among image patches, allowing the model to weigh the importance…

Machine Learning · Statistics 2024-01-22 Tomohiro Shiraishi , Daiki Miwa , Teruyuki Katsuoka , Vo Nguyen Le Duy , Kouichi Taji , Ichiro Takeuchi

Vision Transformer (ViT) architectures are becoming increasingly popular and widely employed to tackle computer vision applications. Their main feature is the capacity to extract global information through the self-attention mechanism,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Lorenzo Papa , Paolo Russo , Irene Amerini , Luping Zhou