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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…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Hsin-Ping Huang , Deqing Sun , Yaojie Liu , Wen-Sheng Chu , Taihong Xiao , Jinwei Yuan , Hartwig Adam , Ming-Hsuan Yang

Vision Transformers (ViTs) have achieved state-of-the-art performance in image classification, yet their attention mechanisms often remain opaque and exhibit dense, non-structured behaviors. In this work, we adapt our previously proposed…

计算机视觉与模式识别 · 计算机科学 2026-02-12 Vasileios Arampatzakis , George Pavlidis , Nikolaos Mitianoudis , Nikos Papamarkos

Self-Supervised Learning (SSL) for Vision Transformers (ViTs) has recently demonstrated considerable potential as a pre-training strategy for a variety of computer vision tasks, including image classification and segmentation, both in…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Yannis Kaltampanidis , Alexandros Doumanoglou , Dimitrios Zarpalas

We present a new self-supervised pre-training of Vision Transformers for dense prediction tasks. It is based on a contrastive loss across views that compares pixel-level representations to global image representations. This strategy…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Jaonary Rabarisoa , Valentin Belissen , Florian Chabot , Quoc-Cuong Pham

Distracted driving is one of the major reasons for vehicle accidents. Therefore, detecting distracted driving behaviors is of paramount importance to reduce the millions of deaths and injuries occurring worldwide. Distracted or anomalous…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Shehroz S. Khan , Ziting Shen , Haoying Sun , Ax Patel , Ali Abedi

Deep learning models often rely only on a small set of features even when there is a rich set of predictive signals in the training data. This makes models brittle and sensitive to distribution shifts. In this work, we first examine vision…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Armand Mihai Nicolicioiu , Andrei Liviu Nicolicioiu , Bogdan Alexe , Damien Teney

Chromosome recognition is an essential task in karyotyping, which plays a vital role in birth defect diagnosis and biomedical research. However, existing classification methods face significant challenges due to the inter-class similarity…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Ruijia Chang , Suncheng Xiang , Chengyu Zhou , Kui Su , Dahong Qian , Jun Wang

Contrastive learning is commonly used as a method of self-supervised learning with the "anchor" and "positive" being two random augmentations of a given input image, and the "negative" is the set of all other images. However, the…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Rishab Balasubramanian , Kunal Rathore

Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance for medical image segmentation, yet need plenty of manual annotations for training. Semi-Supervised Learning (SSL) methods are promising to reduce the…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Ran Gu , Jingyang Zhang , Guotai Wang , Wenhui Lei , Tao Song , Xiaofan Zhang , Kang Li , Shaoting Zhang

Vision Transformers (ViTs) have shown strong empirical performance on high-dimensional medical imaging data, yet their behavior under survival objectives and the interpretability of their attention mechanisms remain poorly understood. Under…

医学物理 · 物理学 2026-04-24 Qiyuan Shi , Yi Li

Vision transformers (ViTs) have been successfully applied in image classification tasks recently. In this paper, we show that, unlike convolution neural networks (CNNs)that can be improved by stacking more convolutional layers, the…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Daquan Zhou , Bingyi Kang , Xiaojie Jin , Linjie Yang , Xiaochen Lian , Zihang Jiang , Qibin Hou , Jiashi Feng

The integration of different imaging modalities, such as structural, diffusion tensor, and functional magnetic resonance imaging, with deep learning models has yielded promising outcomes in discerning phenotypic characteristics and…

图像与视频处理 · 电气工程与系统科学 2024-10-08 Zhiyuan Li , Hailong Li , Anca L. Ralescu , Jonathan R. Dillman , Mekibib Altaye , Kim M. Cecil , Nehal A. Parikh , Lili He

Recent self-supervised contrastive methods have been able to produce impressive transferable visual representations by learning to be invariant to different data augmentations. However, these methods implicitly assume a particular set of…

计算机视觉与模式识别 · 计算机科学 2021-03-22 Tete Xiao , Xiaolong Wang , Alexei A. Efros , Trevor Darrell

Self-supervised contrastive learning has demonstrated great potential in learning visual representations. Despite their success in various downstream tasks such as image classification and object detection, self-supervised pre-training for…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Di Wu , Siyuan Li , Zelin Zang , Stan Z. Li

A Vision Transformer (ViT) is a simple neural architecture amenable to serve several computer vision tasks. It has limited built-in architectural priors, in contrast to more recent architectures that incorporate priors either about the…

计算机视觉与模式识别 · 计算机科学 2022-04-15 Hugo Touvron , Matthieu Cord , Hervé Jégou

Supervised learning can learn large representational spaces, which are crucial for handling difficult learning tasks. However, due to the design of the model, classical image classification approaches struggle to generalize to new problems…

计算机视觉与模式识别 · 计算机科学 2021-11-16 Safwen Naimi , Rien van Leeuwen , Wided Souidene , Slim Ben Saoud

We propose a supervised contrastive learning framework for video representation learning that leverages temporally global context. We introduce a video to image aggregation strategy that spatially arranges multiple frames from each video…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Shaif Chowdhury , Mushfika Rahman , Greg Hamerly

Vision Transformers (ViTs) have achieved comparable or superior performance than Convolutional Neural Networks (CNNs) in computer vision. This empirical breakthrough is even more remarkable since, in contrast to CNNs, ViTs do not embed any…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Samy Jelassi , Michael E. Sander , Yuanzhi Li

Unsupervised Domain Adaptation (UDA) methods facilitate knowledge transfer from a labeled source domain to an unlabeled target domain, navigating the obstacle of domain shift. While Convolutional Neural Networks (CNNs) are a staple in UDA,…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Gauransh Sawhney , Daksh Dave , Adeel Ahmed , Jiechao Gao , Khalid Saleem

Self-supervised learning on large-scale Vision Transformers (ViTs) as pre-training methods has achieved promising downstream performance. Yet, how much these pre-training paradigms promote lightweight ViTs' performance is considerably less…

计算机视觉与模式识别 · 计算机科学 2023-05-04 Shaoru Wang , Jin Gao , Zeming Li , Xiaoqin Zhang , Weiming Hu