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We introduce a robust algorithm for face verification, i.e., deciding whether twoimages are of the same person or not. Our approach is a novel take on the idea ofusing deep generative networks for adversarial robustness. We use the…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Marius Arvinte , Ahmed H. Tewfik , Sriram Vishwanath

Most advanced unsupervised anomaly detection (UAD) methods rely on modeling feature representations of frozen encoder networks pre-trained on large-scale datasets, e.g. ImageNet. However, the features extracted from the encoders that are…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Jia Guo , Shuai Lu , Lize Jia , Weihang Zhang , Huiqi Li

From the intuitive notion of disentanglement, the image variations corresponding to different factors should be distinct from each other, and the disentangled representation should reflect those variations with separate dimensions. To…

计算机视觉与模式识别 · 计算机科学 2022-02-15 Xuanchi Ren , Tao Yang , Yuwang Wang , Wenjun Zeng

Image classification models tend to make decisions based on peripheral attributes of data items that have strong correlation with a target variable (i.e., dataset bias). These biased models suffer from the poor generalization capability…

机器学习 · 计算机科学 2021-10-26 Jungsoo Lee , Eungyeup Kim , Juyoung Lee , Jihyeon Lee , Jaegul Choo

We offer a practical unpaired learning based image dehazing network from an unpaired set of clear and hazy images. This paper provides a new perspective to treat image dehazing as a two-class separated factor disentanglement task, i.e, the…

图像与视频处理 · 电气工程与系统科学 2022-07-13 Xiang Chen , Zhentao Fan , Pengpeng Li , Longgang Dai , Caihua Kong , Zhuoran Zheng , Yufeng Huang , Yufeng Li

Recently, cross domain transfer has been applied for unsupervised image restoration tasks. However, directly applying existing frameworks would lead to domain-shift problems in translated images due to lack of effective supervision.…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Wenchao Du , Hu Chen , Hongyu Yang

Dual-energy computed tomography (DECT) enables material-specific imaging through acquisitions at two different X-ray energy spectra. Material decomposition from DECT data is an ill-posed inverse problem that is highly sensitive to noise…

Counterfactual medical image generation effectively addresses data scarcity and enhances the interpretability of medical images. However, due to the complex and diverse pathological features of medical images and the imbalanced class…

计算机视觉与模式识别 · 计算机科学 2025-04-25 Weizhi Nie , Zichun Zhang , Weijie Wang , Bruno Lepri , Anan Liu , Nicu Sebe

To highlight the challenges of achieving representation disentanglement for text domain in an unsupervised setting, in this paper we select a representative set of successfully applied models from the image domain. We evaluate these models…

计算与语言 · 计算机科学 2021-06-08 Lan Zhang , Victor Prokhorov , Ehsan Shareghi

In this paper, we study the problem of unsupervised graph representation learning by harnessing the control properties of dynamical networks defined on graphs. Our approach introduces a novel framework for contrastive learning, a widely…

机器学习 · 计算机科学 2024-04-19 Obaid Ullah Ahmad , Anwar Said , Mudassir Shabbir , Waseem Abbas , Xenofon Koutsoukos

The process of generating data such as images is controlled by independent and unknown factors of variation. The retrieval of these variables has been studied extensively in the disentanglement, causal representation learning, and…

机器学习 · 计算机科学 2023-09-26 Gaël Gendron , Michael Witbrock , Gillian Dobbie

Self-supervised image denoising techniques emerged as convenient methods that allow training denoising models without requiring ground-truth noise-free data. Existing methods usually optimize loss metrics that are calculated from multiple…

We describe a method for unpaired realistic depth synthesis that learns diverse variations from the real-world depth scans and ensures geometric consistency between the synthetic and synthesized depth. The synthesized realistic depth can…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Yuefan Shen , Yanchao Yang , Youyi Zheng , C. Karen Liu , Leonidas Guibas

Latent traversal is a popular approach to visualize the disentangled latent representations. Given a bunch of variations in a single unit of the latent representation, it is expected that there is a change in a single factor of variation of…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Xinqi Zhu , Chang Xu , Dacheng Tao

Microscopy images are crucial for life science research, allowing detailed inspection and characterization of cellular and tissue-level structures and functions. However, microscopy data are unavoidably affected by image degradations, such…

图像与视频处理 · 电气工程与系统科学 2025-11-20 Nuno Pimpão Martins , Yannis Kalaidzidis , Marino Zerial , Florian Jug

Extrapolating fine-grained pixel-level correspondences in a fully unsupervised manner from a large set of misaligned images can benefit several computer vision and graphics problems, e.g. co-segmentation, super-resolution, image edit…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Roberto Annunziata , Christos Sagonas , Jacques Cali

Deep clustering successfully provides more effective features than conventional ones and thus becomes an important technique in current unsupervised learning. However, most deep clustering methods ignore the vital positive and negative…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Zhiyuan Dang , Cheng Deng , Xu Yang , Heng Huang

Self-supervised representation learning for visual pre-training has achieved remarkable success with sample (instance or pixel) discrimination and semantics discovery of instance, whereas there still exists a non-negligible gap between…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Xiaoni Li , Yu Zhou , Yifei Zhang , Aoting Zhang , Wei Wang , Ning Jiang , Haiying Wu , Weiping Wang

Negative-free contrastive learning methods have attracted a lot of attention with simplicity and impressive performances for large-scale pretraining. However, its disentanglement property remains unexplored. In this paper, we examine…

机器学习 · 计算机科学 2022-10-18 Jinkun Cao , Ruiqian Nai , Qing Yang , Jialei Huang , Yang Gao

Graph representation learning nowadays becomes fundamental in analyzing graph-structured data. Inspired by recent success of contrastive methods, in this paper, we propose a novel framework for unsupervised graph representation learning by…

机器学习 · 计算机科学 2020-07-14 Yanqiao Zhu , Yichen Xu , Feng Yu , Qiang Liu , Shu Wu , Liang Wang