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We propose a fast, accurate matching method for estimating dense pixel correspondences across scenes. It is a challenging problem to estimate dense pixel correspondences between images depicting different scenes or instances of the same…

计算机视觉与模式识别 · 计算机科学 2015-04-24 Chao Zhang , Chunhua Shen , Tingzhi Shen

Existing semantic segmentation approaches either aim to improve the object's inner consistency by modeling the global context, or refine objects detail along their boundaries by multi-scale feature fusion. In this paper, a new paradigm for…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Xiangtai Li , Xia Li , Li Zhang , Guangliang Cheng , Jianping Shi , Zhouchen Lin , Shaohua Tan , Yunhai Tong

State-of-the-art semantic image segmentation methods are mostly based on training deep convolutional neural networks (CNNs). In this work, we proffer to improve semantic segmentation with the use of contextual information. In particular, we…

计算机视觉与模式识别 · 计算机科学 2017-05-03 Guosheng Lin , Chunhua Shen , Anton van den Hengel , Ian Reid

Recent multimodal models such as Contrastive Language-Image Pre-training (CLIP) have shown remarkable ability to align visual and linguistic representations. However, domains where small visual differences carry large semantic significance,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Hiroshi Sasaki

Collecting labeled data for the task of semantic segmentation is expensive and time-consuming, as it requires dense pixel-level annotations. While recent Convolutional Neural Network (CNN) based semantic segmentation approaches have…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Xiangyun Zhao , Raviteja Vemulapalli , Philip Mansfield , Boqing Gong , Bradley Green , Lior Shapira , Ying Wu

In seismic interpretation, pixel-level labels of various rock structures can be time-consuming and expensive to obtain. As a result, there oftentimes exists a non-trivial quantity of unlabeled data that is left unused simply because…

计算机视觉与模式识别 · 计算机科学 2022-06-17 Kiran Kokilepersaud , Mohit Prabhushankar , Ghassan AlRegib

To overcome the domain gap between synthetic and real-world datasets, unsupervised domain adaptation methods have been proposed for semantic segmentation. Majority of the previous approaches have attempted to reduce the gap either at the…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Tianyu Li , Subhankar Roy , Huayi Zhou , Hongtao Lu , Stephane Lathuiliere

We present a self-supervised learning (SSL) method suitable for semi-global tasks such as object detection and semantic segmentation. We enforce local consistency between self-learned features, representing corresponding image locations of…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Ashraful Islam , Ben Lundell , Harpreet Sawhney , Sudipta Sinha , Peter Morales , Richard J. Radke

Contrastive language-image pretraining (CLIP) using image-text pairs has achieved impressive results on image classification in both zero-shot and transfer learning settings. However, we show that directly applying such models to recognize…

计算机视觉与模式识别 · 计算机科学 2021-12-17 Yiwu Zhong , Jianwei Yang , Pengchuan Zhang , Chunyuan Li , Noel Codella , Liunian Harold Li , Luowei Zhou , Xiyang Dai , Lu Yuan , Yin Li , Jianfeng Gao

Learning discriminative representations of unlabelled data is a challenging task. Contrastive self-supervised learning provides a framework to learn meaningful representations using learned notions of similarity measures from simple pretext…

计算机视觉与模式识别 · 计算机科学 2023-01-04 Nicklas Boserup , Raghavendra Selvan

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…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yichen Zhang , Yifang Yin , Ying Zhang , Roger Zimmermann

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

This paper introduces a novel synthetic dataset that captures urban scenes under a variety of weather conditions, providing pixel-perfect, ground-truth-aligned images to facilitate effective feature alignment across domains. Additionally,…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Javier Montalvo , Roberto Alcover-Couso , Pablo Carballeira , Álvaro García-Martín , Juan C. SanMiguel , Marcos Escudero-Viñolo

Training deep networks for semantic segmentation requires large amounts of labeled training data, which presents a major challenge in practice, as labeling segmentation masks is a highly labor-intensive process. To address this issue, we…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Lukas Hoyer , Dengxin Dai , Yuhua Chen , Adrian Köring , Suman Saha , Luc Van Gool

In this paper we propose USegScene, a framework for semantically guided unsupervised learning of depth, optical flow and ego-motion estimation for stereo camera images using convolutional neural networks. Our framework leverages semantic…

计算机视觉与模式识别 · 计算机科学 2022-07-18 Johan Vertens , Wolfram Burgard

Self-supervised representation learning based on Contrastive Learning (CL) has been the subject of much attention in recent years. This is due to the excellent results obtained on a variety of subsequent tasks (in particular…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Ahmed Ben Saad , Kristina Prokopetc , Josselin Kherroubi , Axel Davy , Adrien Courtois , Gabriele Facciolo

Being able to learn dense semantic representations of images without supervision is an important problem in computer vision. However, despite its significance, this problem remains rather unexplored, with a few exceptions that considered…

计算机视觉与模式识别 · 计算机科学 2021-08-04 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Mitochondria segmentation in electron microscopy images is essential in neuroscience. However, due to the image degradation during the imaging process, the large variety of mitochondrial structures, as well as the presence of noise,…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Zhili Li , Xuejin Chen , Jie Zhao , Zhiwei Xiong

In this work we study the mutual benefits of two common computer vision tasks, self-supervised depth estimation and semantic segmentation from images. For example, to help unsupervised monocular depth estimation, constraints from semantic…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Shengjie Zhu , Garrick Brazil , Xiaoming Liu

A key requirement for the success of supervised deep learning is a large labeled dataset - a condition that is difficult to meet in medical image analysis. Self-supervised learning (SSL) can help in this regard by providing a strategy to…

计算机视觉与模式识别 · 计算机科学 2020-11-02 Krishna Chaitanya , Ertunc Erdil , Neerav Karani , Ender Konukoglu