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Image segmentation, the process of partitioning an image into meaningful regions, plays a pivotal role in computer vision and medical imaging applications. Unsupervised segmentation, particularly in the absence of labeled data, remains a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Kovvuri Sai Gopal Reddy , Bodduluri Saran , A. Mudit Adityaja , Saurabh J. Shigwan , Nitin Kumar

Unsupervised semantic segmentation aims to automatically partition images into semantically meaningful regions by identifying global semantic categories within an image corpus without any form of annotation. Building upon recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Oliver Hahn , Nikita Araslanov , Simone Schaub-Meyer , Stefan Roth

In our today's information society more and more data emerges, e.g.~in social networks, technical applications, or business applications. Companies try to commercialize these data using data mining or machine learning methods. For this…

Machine Learning · Statistics 2016-10-17 Tobias Reitmaier , Adrian Calma , Bernhard Sick

Tissue-level semantic segmentation is a vital step in computational pathology. Fully-supervised models have already achieved outstanding performance with dense pixel-level annotations. However, drawing such labels on the giga-pixel whole…

Image and Video Processing · Electrical Eng. & Systems 2021-10-18 Chu Han , Jiatai Lin , Jinhai Mai , Yi Wang , Qingling Zhang , Bingchao Zhao , Xin Chen , Xipeng Pan , Zhenwei Shi , Xiaowei Xu , Su Yao , Lixu Yan , Huan Lin , Zeyan Xu , Xiaomei Huang , Guoqiang Han , Changhong Liang , Zaiyi Liu

In this study, we address the intricate challenge of multi-task dense prediction, encompassing tasks such as semantic segmentation, depth estimation, and surface normal estimation, particularly when dealing with partially annotated data…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Meixuan Li , Tianyu Li , Guoqing Wang , Peng Wang , Yang Yang , Heng Tao Shen

The pre-training and fine-tuning paradigm has revolutionized satellite remote sensing applications. However, this approach remains largely underexplored for airborne laser scanning (ALS), an important technology for applications such as…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Haoyi Xiu , Xin Liu , Taehoon Kim , Kyoung-Sook Kim

Generalized category discovery (GCD) is an important and challenging task in open-world learning. Specifically, given some labeled data of known classes, GCD aims to cluster unlabeled data that contain both known and unknown classes.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Zhimao Peng , Enguang Wang , Fei Yang , Xialei Liu , Ming-Ming Cheng

In this paper, we show that recent advances in self-supervised feature learning enable unsupervised object discovery and semantic segmentation with a performance that matches the state of the field on supervised semantic segmentation 10…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Andrii Zadaianchuk , Matthaeus Kleindessner , Yi Zhu , Francesco Locatello , Thomas Brox

Albeit with varying degrees of progress in the field of Semi-Supervised Semantic Segmentation, most of its recent successes are involved in unwieldy models and the lightweight solution is still not yet explored. We find that existing…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Jie Qin , Jie Wu , Ming Li , Xuefeng Xiao , Min Zheng , Xingang Wang

Point cloud segmentation is a fundamental task in 3D. Despite recent progress on point cloud segmentation with the power of deep networks, current deep learning methods based on the clean label assumptions may fail with noisy labels. Yet,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Shuquan Ye , Dongdong Chen , Songfang Han , Jing Liao

Unsupervised image segmentation aims at assigning the pixels with similar feature into a same cluster without annotation, which is an important task in computer vision. Due to lack of prior knowledge, most of existing model usually need to…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Zhichao Wu , Lei Guo , Hao Zhang , Dan Xu

The state of the art in semantic segmentation is steadily increasing in performance, resulting in more precise and reliable segmentations in many different applications. However, progress is limited by the cost of generating labels for…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Viktor Olsson , Wilhelm Tranheden , Juliano Pinto , Lennart Svensson

Recent self-supervised image segmentation models have achieved promising performance on semantic segmentation and class-agnostic instance segmentation. However, their pretraining schedule is multi-stage, requiring a time-consuming…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Huihui Xu , Jin Ye , Hongqiu Wang , Changkai Ji , Jiashi Lin , Ming Hu , Ziyan Huang , Ying Chen , Chenglong Ma , Tianbin Li , Lihao Liu , Junjun He , Lei Zhu

Deep neural networks (DNNs) have witnessed great successes in semantic segmentation, which requires a large number of labeled data for training. We present a novel learning framework called Uncertainty guided Cross-head Co-training (UCC)…

Computer Vision and Pattern Recognition · Computer Science 2023-02-24 Jiashuo Fan , Bin Gao , Huan Jin , Lihui Jiang

Traditional supervised medical image segmentation models require large amounts of labeled data for training; however, obtaining such large-scale labeled datasets in the real world is extremely challenging. Recent semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Yunyao Lu , Yihang Wu , Reem Kateb , Ahmad Chaddad

Registering urban point clouds is a quite challenging task due to the large-scale, noise and data incompleteness of LiDAR scanning data. In this paper, we propose SARNet, a novel semantic augmented registration network aimed at achieving…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Chao Liu , Jianwei Guo , Dong-Ming Yan , Zhirong Liang , Xiaopeng Zhang , Zhanglin Cheng

In this paper, we present and study a new image segmentation task, called Generalized Open-set Semantic Segmentation (GOSS). Previously, with the well-known open-set semantic segmentation (OSS), the intelligent agent only detects the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Jie Hong , Weihao Li , Junlin Han , Jiyang Zheng , Pengfei Fang , Mehrtash Harandi , Lars Petersson

Given an aerial image, aerial scene parsing (ASP) targets to interpret the semantic structure of the image content, e.g., by assigning a semantic label to every pixel of the image. With the popularization of data-driven methods, the past…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Yang Long , Gui-Song Xia , Liangpei Zhang , Gong Cheng , Deren Li

Semi-supervised learning (SSL) addresses the critical challenge of training accurate models when labeled data is scarce but unlabeled data is abundant. Graph-based SSL (GSSL) has emerged as a popular framework that captures data structure…

Machine Learning · Statistics 2026-02-10 Nadav Katz , Ariel Jaffe

Semi-supervised semantic segmentation learns from small amounts of labelled images and large amounts of unlabelled images, which has witnessed impressive progress with the recent advance of deep neural networks. However, it often suffers…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Dayan Guan , Jiaxing Huang , Aoran Xiao , Shijian Lu