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Adversarial training (AT) can help improve the robustness of Vision Transformers (ViT) against adversarial attacks by intentionally injecting adversarial examples into the training data. However, this way of adversarial injection inevitably…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Fudong Lin , Jiadong Lou , Xu Yuan , Nian-Feng Tzeng

Recent studies have shown remarkable success in face manipulation task with the advance of GANs and VAEs paradigms, but the outputs are sometimes limited to low-resolution and lack of diversity. In this work, we propose Additive Focal…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Shengju Qian , Kwan-Yee Lin , Wayne Wu , Yangxiaokang Liu , Quan Wang , Fumin Shen , Chen Qian , Ran He

Recently, several Vision Transformer (ViT) based methods have been proposed for Fine-Grained Visual Classification (FGVC).These methods significantly surpass existing CNN-based ones, demonstrating the effectiveness of ViT in FGVC…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Zi-Chao Zhang , Zhen-Duo Chen , Yongxin Wang , Xin Luo , Xin-Shun Xu

Metal manufacturing often results in the production of defective products, leading to operational challenges. Since traditional manual inspection is time-consuming and resource-intensive, automatic solutions are needed. The study utilizes…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Toqa Alaa , Mostafa Kotb , Arwa Zakaria , Mariam Diab , Walid Gomaa

Biomedical image classification requires capturing of bio-informatics based on specific feature distribution. In most of such applications, there are mainly challenges due to limited availability of samples for diseased cases and imbalanced…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Arun K. Sharma , Nishchal K. Verma

We present a novel method that extends the self-attention mechanism of a vision transformer (ViT) for more accurate object detection across diverse datasets. ViTs show strong capability for image understanding tasks such as object…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Tan Nguyen , Coy D. Heldermon , Corey Toler-Franklin

Recent advancements in AI-based multimedia generation have enabled the creation of hyper-realistic images and videos, raising concerns about their potential use in spreading misinformation. The widespread accessibility of generative…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Joy Battocchio , Stefano Dell'Anna , Andrea Montibeller , Giulia Boato

Vision Transformer (ViT) self-attention mechanism is characterized by feature collapse in deeper layers, resulting in the vanishing of low-level visual features. However, such features can be helpful to accurately represent and identify…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Anxhelo Diko , Danilo Avola , Marco Cascio , Luigi Cinque

Extensive work has demonstrated the effectiveness of Vision Transformers. The plain Vision Transformer tends to obtain multi-scale features by selecting fixed layers, or the last layer of features aiming to achieve higher performance in…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Fangjian Lin , Yizhe Ma , Shengwei Tian

Facial forgery methods such as deepfakes can be misused for identity manipulation and spreading misinformation. They have evolved alongside advancements in generative AI, leading to new and more sophisticated forgery techniques that diverge…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Nadarasar Bahavan , Sachith Seneviratne , Sanjay Saha , Ken Chen , Sanka Rasnayaka , Saman Halgamuge

Generative adversary networks (GANs) have recently led to highly realistic image synthesis results. In this work, we describe a new method to expose GAN-synthesized images using the locations of the facial landmark points. Our method is…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Xin Yang , Yuezun Li , Honggang Qi , Siwei Lyu

Vision Transformer (ViT) architectures traditionally employ a grid-based approach to tokenization independent of the semantic content of an image. We propose a modular superpixel tokenization strategy which decouples tokenization and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Marius Aasan , Odd Kolbjørnsen , Anne Schistad Solberg , Adín Ramirez Rivera

This study examines various feature extraction techniques in computer vision, the primary focus of which is on Vision Transformers (ViTs) and other approaches such as Generative Adversarial Networks (GANs), deep feature models, traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Venant Niyonkuru , Sylla Sekou , Jimmy Jackson Sinzinkayo

Fine-grained visual classification (FGVC) which aims at recognizing objects from subcategories is a very challenging task due to the inherently subtle inter-class differences. Most existing works mainly tackle this problem by reusing the…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Ju He , Jie-Neng Chen , Shuai Liu , Adam Kortylewski , Cheng Yang , Yutong Bai , Changhu Wang

Texture synthesis is a fundamental task in computer vision, whose goal is to generate visually realistic and structurally coherent textures for a wide range of applications, from graphics to scientific simulations. While traditional methods…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Elahe Salari , Zohreh Azimifar

For a variety of biometric cross-spectral tasks, Visible-Thermal (VT) facial pairs are used. However, due to a lack of calibration in the lab, photographic capture between two different sensors leads to severely misaligned pairs that can…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Catherine Ordun , Edward Raff , Sanjay Purushotham

Recent generative models can synthesize "views" of artificial images that mimic real-world variations, such as changes in color or pose, simply by learning from unlabeled image collections. Here, we investigate whether such views can be…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Lucy Chai , Jun-Yan Zhu , Eli Shechtman , Phillip Isola , Richard Zhang

We propose a low-rank adaptation method for training privacy-preserving vision transformer (ViT) models that efficiently freezes pre-trained ViT model weights. In the proposed method, trainable rank decomposition matrices are injected into…

Cryptography and Security · Computer Science 2025-07-17 Haiwei Lin , Shoko Imaizumi , Hitoshi Kiya

Vision Transformers (ViT) are competing to replace Convolutional Neural Networks (CNN) for various computer vision tasks in medical imaging such as classification and segmentation. While the vulnerability of CNNs to adversarial attacks is a…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Faris Almalik , Mohammad Yaqub , Karthik Nandakumar

Studies involving colourising images has been garnering researchers' keen attention over time, assisted by significant advances in various Machine Learning techniques and compute power availability. Traditionally, colourising images have…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Tejas Bana , Jatan Loya , Siddhant Kulkarni