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Deep learning techniques have achieved great success in remote sensing image change detection. Most of them are supervised techniques, which usually require large amounts of training data and are limited to a particular application.…

Image and Video Processing · Electrical Eng. & Systems 2021-10-11 Yuxing Chen , Lorenzo Bruzzone

Recent advancements in self-supervised learning have demonstrated that effective visual representations can be learned from unlabeled images. This has led to increased interest in applying self-supervised learning to the medical domain,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Xiangyi Yan , Junayed Naushad , Chenyu You , Hao Tang , Shanlin Sun , Kun Han , Haoyu Ma , James Duncan , Xiaohui Xie

Self-supervised feature representations have been shown to be useful for supervised classification, few-shot learning, and adversarial robustness. We show that features obtained using self-supervised learning are comparable to, or better…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Isabela Albuquerque , Nikhil Naik , Junnan Li , Nitish Keskar , Richard Socher

In this work, we study different approaches to self-supervised pretraining of object detection models. We first design a general framework to learn a spatially consistent dense representation from an image, by randomly sampling and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-12 Trung Dang , Simon Kornblith , Huy Thong Nguyen , Peter Chin , Maryam Khademi

Supervised learning demands large amounts of precisely annotated data to achieve promising results. Such data curation is labor-intensive and imposes significant overhead regarding time and costs. Self-supervised learning (SSL) partially…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Thangarajah Akilan , Nusrat Jahan , Wandong Zhang

Deep neural networks are typically trained under a supervised learning framework where a model learns a single task using labeled data. Instead of relying solely on labeled data, practitioners can harness unlabeled or related data to…

Machine Learning · Computer Science 2020-07-03 Huanru Henry Mao

Visual place recognition is a key to unlocking spatial navigation for animals, humans and robots. While state-of-the-art approaches are trained in a supervised manner and therefore hardly capture the information needed for generalizing to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Mohamed Adel Musallam , Vincent Gaudillière , Djamila Aouada

Self-supervised learning has gained popularity because of its ability to avoid the cost of annotating large-scale datasets. It is capable of adopting self-defined pseudo labels as supervision and use the learned representations for several…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Ashish Jaiswal , Ashwin Ramesh Babu , Mohammad Zaki Zadeh , Debapriya Banerjee , Fillia Makedon

Self-supervised learning aims to learn representations from the data itself without explicit manual supervision. Existing efforts ignore a crucial aspect of self-supervised learning - the ability to scale to large amount of data because…

Computer Vision and Pattern Recognition · Computer Science 2019-06-07 Priya Goyal , Dhruv Mahajan , Abhinav Gupta , Ishan Misra

In recent years, supervised learning has been widely used in various tasks of optical remote sensing image understanding, including remote sensing image classification, pixel-wise segmentation, change detection, and object detection. The…

Computer Vision and Pattern Recognition · Computer Science 2022-04-21 Jun Yue , Leyuan Fang , Pedram Ghamisi , Weiying Xie , Jun Li , Jocelyn Chanussot , Antonio J Plaza

Contrastive self-supervised learning has attracted significant research attention recently. It learns effective visual representations from unlabeled data by embedding augmented views of the same image close to each other while pushing away…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Yichen Zhang , Yifang Yin , Ying Zhang , Roger Zimmermann

Self-Supervised Learning (SSL) is a valuable and robust training methodology for contemporary Deep Neural Networks (DNNs), enabling unsupervised pretraining on a 'pretext task' that does not require ground-truth labels/annotation. This…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Sotirios Konstantakos , Jorgen Cani , Ioannis Mademlis , Despina Ioanna Chalkiadaki , Yuki M. Asano , Efstratios Gavves , Georgios Th. Papadopoulos

We investigate the utility of pretraining by contrastive self supervised learning on both natural-scene and medical imaging datasets when the unlabeled dataset size is small, or when the diversity within the unlabeled set does not lead to…

Image and Video Processing · Electrical Eng. & Systems 2021-09-07 Ozan Ciga , Tony Xu , Anne L. Martel

This work proposes a hybrid unsupervised and supervised learning method to pre-train models applied in Earth observation downstream tasks when only a handful of labels denoting very general semantic concepts are available. We combine a…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Omar A. Castaño-Idarraga , Raul Ramos-Pollán , Freddie Kalaitzis

Supervised deep learning models depend on massive labeled data. Unfortunately, it is time-consuming and labor-intensive to collect and annotate bitemporal samples containing desired changes. Transfer learning from pre-trained models is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Hao Chen , Wenyuan Li , Song Chen , Zhenwei Shi

Fine-grained image classification involves identifying different subcategories of a class which possess very subtle discriminatory features. Fine-grained datasets usually provide bounding box annotations along with class labels to aid the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Farha Al Breiki , Muhammad Ridzuan , Rushali Grandhe

Since large number of high-quality remote sensing images are readily accessible, exploiting the corpus of images with less manual annotation draws increasing attention. Self-supervised models acquire general feature representations by…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Xinye Wanyan , Sachith Seneviratne , Shuchang Shen , Michael Kirley

Self-supervision can dramatically cut back the amount of manually-labelled data required to train deep neural networks. While self-supervision has usually been considered for tasks such as image classification, in this paper we aim at…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 David Novotny , Samuel Albanie , Diane Larlus , Andrea Vedaldi

Recently, contrastive learning has largely advanced the progress of unsupervised visual representation learning. Pre-trained on ImageNet, some self-supervised algorithms reported higher transfer learning performance compared to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-18 Longhui Wei , Lingxi Xie , Jianzhong He , Jianlong Chang , Xiaopeng Zhang , Wengang Zhou , Houqiang Li , Qi Tian

Recent advances in self-supervised learning (SSL) have largely closed the gap with supervised ImageNet pretraining. Despite their success these methods have been primarily applied to unlabeled ImageNet images, and show marginal gains when…

Computer Vision and Pattern Recognition · Computer Science 2020-12-09 Ramprasaath R. Selvaraju , Karan Desai , Justin Johnson , Nikhil Naik