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This paper presents SimCLR: a simple framework for contrastive learning of visual representations. We simplify recently proposed contrastive self-supervised learning algorithms without requiring specialized architectures or a memory bank.…

机器学习 · 计算机科学 2020-07-02 Ting Chen , Simon Kornblith , Mohammad Norouzi , Geoffrey Hinton

Real-scene image super-resolution aims to restore real-world low-resolution images into their high-quality versions. A typical RealSR framework usually includes the optimization of multiple criteria which are designed for different image…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Yukai Shi , Hao Li , Sen Zhang , Zhijing Yang , Xiao Wang

Contrastive learning is an efficient approach to self-supervised representation learning. Although recent studies have made progress in the theoretical understanding of contrastive learning, the investigation of how to characterize the…

机器学习 · 计算机科学 2023-08-21 Hiroki Waida , Yuichiro Wada , Léo Andéol , Takumi Nakagawa , Yuhui Zhang , Takafumi Kanamori

We introduce Patch Aligned Contrastive Learning (PACL), a modified compatibility function for CLIP's contrastive loss, intending to train an alignment between the patch tokens of the vision encoder and the CLS token of the text encoder.…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Jishnu Mukhoti , Tsung-Yu Lin , Omid Poursaeed , Rui Wang , Ashish Shah , Philip H. S. Torr , Ser-Nam Lim

We address the problem of few-shot semantic segmentation (FSS), which aims to segment novel class objects in a target image with a few annotated samples. Though recent advances have been made by incorporating prototype-based metric…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Hyeongjun Kwon , Somi Jeong , Sunok Kim , Kwanghoon Sohn

Dense prediction tasks such as segmentation and detection of pathological entities hold crucial clinical value in computational pathology workflows. However, obtaining dense annotations on large cohorts is usually tedious and expensive.…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Jingwei Zhang , Saarthak Kapse , Ke Ma , Prateek Prasanna , Maria Vakalopoulou , Joel Saltz , Dimitris Samaras

Semantic segmentation in autonomous driving predominantly focuses on learning from large-scale data with a closed set of known classes without considering unknown objects. Motivated by safety reasons, we address the video class agnostic…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Mennatullah Siam , Alex Kendall , Martin Jagersand

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

Deep convolutional neural networks have considerably improved state-of-the-art results for semantic segmentation. Nevertheless, even modern architectures lack the ability to generalize well to a test dataset that originates from a different…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Robert A. Marsden , Alexander Bartler , Mario Döbler , Bin Yang

To overcome the data-hungry challenge, we have proposed a semi-supervised contrastive learning framework for the task of class-imbalanced semantic segmentation. First and foremost, to make the model operate in a semi-supervised manner, we…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Kangcheng Liu

Segmentation is one of the most important tasks in the medical imaging pipeline as it influences a number of image-based decisions. To be effective, fully supervised segmentation approaches require large amounts of manually annotated…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Tyler Ward , Aaron Moseley , Abdullah-Al-Zubaer Imran

Pixel-level labels are particularly expensive to acquire. Hence, pretraining is a critical step to improve models on a task like semantic segmentation. However, prominent algorithms for pretraining neural networks use image-level…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Mathilde Caron , Neil Houlsby , Cordelia Schmid

Weakly-Supervised Semantic Segmentation (WSSS) aims to train segmentation models using image data with only image-level supervision. Since precise pixel-level annotations are not accessible, existing methods typically focus on producing…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Ci-Siang Lin , Chien-Yi Wang , Yu-Chiang Frank Wang , Min-Hung Chen

Most existing self-supervised learning (SSL) approaches for 3D point clouds are dominated by generative methods based on Masked Autoencoders (MAE). However, these generative methods have been proven to struggle to capture high-level…

计算机视觉与模式识别 · 计算机科学 2025-12-10 Shaofeng Zhang , Xuanqi Chen , Xiangdong Zhang , Sitong Wu , Junchi Yan

Contrastive learning has emerged as an essential approach for self-supervised learning in visual representation learning. The central objective of contrastive learning is to maximize the similarities between two augmented versions of an…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Hengkui Dong , Xianzhong Long , Yun Li , Lei Chen

Due to the scarcity of labeled data, Contrastive Self-Supervised Learning (SSL) frameworks have lately shown great potential in several medical image analysis tasks. However, the existing contrastive mechanisms are sub-optimal for dense…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Hritam Basak , Soumitri Chattopadhyay , Rohit Kundu , Sayan Nag , Rammohan Mallipeddi

This work aims to leverage pre-trained foundation models, such as contrastive language-image pre-training (CLIP) and segment anything model (SAM), to address weakly supervised semantic segmentation (WSSS) using image-level labels. To this…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Xiaobo Yang , Xiaojin Gong

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…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Hao Chen , Wenyuan Li , Song Chen , Zhenwei Shi

In-context learning (ICL) enables generalization to new tasks with minimal labeled data. However, mainstream ICL approaches rely on a gridding strategy, which lacks the flexibility required for vision applications. We introduce Temporal, a…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Assefa Wahd , Jacob Jaremko , Abhilash Hareendranathan

Recently, various contrastive learning techniques have been developed to categorize time series data and exhibit promising performance. A general paradigm is to utilize appropriate augmentations and construct feasible positive samples such…

机器学习 · 计算机科学 2024-10-11 Qianying Ren , Dongsheng Luo , Dongjin Song