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We address the problem of generalized category discovery (GCD) that aims to partition a partially labeled collection of images; only a small part of the collection is labeled and the total number of target classes is unknown. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Sua Choi , Dahyun Kang , Minsu Cho

Generalized Category Discovery (GCD) aims to classify test-time samples into either seen categories** -- available during training -- or novel ones, without relying on label supervision. Most existing GCD methods assume simultaneous access…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Vaibhav Rathore , Divyam Gupta , Biplab Banerjee

Continual Semantic Segmentation (CSS) requires learning new classes without forgetting previously acquired knowledge, addressing the fundamental challenge of catastrophic forgetting in dense prediction tasks. However, existing CSS methods…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Yifu Guo , Yuquan Lu , Wentao Zhang , Zishan Xu , Dexia Chen , Siyu Zhang , Yizhe Zhang , Ruixuan Wang

The usage of convolutional neural networks (CNNs) for unsupervised image segmentation was investigated in this study. In the proposed approach, label prediction and network parameter learning are alternately iterated to meet the following…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Wonjik Kim , Asako Kanezaki , Masayuki Tanaka

Generalized Category Discovery (GCD) aims to classify both base and novel images using labeled base data. However, current approaches inadequately address the intrinsic optimization of the co-occurrence matrix $\bar{A}$ based on cosine…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Zhong Ji , Shuo Yang , Jingren Liu , Yanwei Pang , Jungong Han

Federated Graph Learning (FGL) enables collaborative learning over distributed graph data, yet existing approaches largely rely on a closed-world assumption, limiting their applicability in dynamic environments where novel categories…

Machine Learning · Computer Science 2026-05-12 Zhongzheng Yuan , Lianshuai Guo , Xunkai Li , Wenyu Wang , Meixia Qu

Generalized Category Discovery (GCD) aims to identify both known and unknown categories, with only partial labels given for the known categories, posing a challenging open-set recognition problem. State-of-the-art approaches for GCD task…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Wei He , Xianghan Meng , Zhiyuan Huang , Xianbiao Qi , Rong Xiao , Chun-Guang Li

Generalized category discovery (GCD) is a pragmatic but underexplored problem, which requires models to automatically cluster and discover novel categories by leveraging the labeled samples from old classes. The challenge is that unlabeled…

Machine Learning · Computer Science 2025-04-08 Shijie Ma , Fei Zhu , Xu-Yao Zhang , Cheng-Lin Liu

Continual Generalized Category Discovery (C-GCD) faces a critical challenge: incrementally learning new classes from unlabeled data streams while preserving knowledge of old classes. Existing methods struggle with catastrophic forgetting,…

Machine Learning · Computer Science 2025-07-24 Hao Dai , Jagmohan Chauhan

Training semantic segmentation models requires a large amount of finely annotated data, making it hard to quickly adapt to novel classes not satisfying this condition. Few-Shot Segmentation (FS-Seg) tackles this problem with many…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Zhuotao Tian , Xin Lai , Li Jiang , Shu Liu , Michelle Shu , Hengshuang Zhao , Jiaya Jia

Deep neural network-based semantic segmentation generally requires large-scale cost extensive annotations for training to obtain better performance. To avoid pixel-wise segmentation annotations which are needed for most methods, recently…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Longlong Jing , Yucheng Chen , Yingli Tian

In domain generalization, the knowledge learnt from one or multiple source domains is transferred to an unseen target domain. In this work, we propose a novel domain generalization approach for fine-grained scene recognition. We first…

Computer Vision and Pattern Recognition · Computer Science 2016-07-27 Marian George , Mandar Dixit , Gábor Zogg , Nuno Vasconcelos

The availability of large-scale data sets is an essential pre-requisite for deep learning based semantic segmentation schemes. Since obtaining pixel-level labels is extremely expensive, supervising deep semantic segmentation networks using…

Computer Vision and Pattern Recognition · Computer Science 2019-09-23 Sinem Aslan , Marcello Pelillo

The Segment Anything Model (SAM) exhibits a capability to segment a wide array of objects in natural images, serving as a versatile perceptual tool for various downstream image segmentation tasks. In contrast, medical image segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Yizhe Zhang , Tao Zhou , Shuo Wang , Ye Wu , Pengfei Gu , Danny Z. Chen

Semantic segmentation has made significant progress in recent years thanks to deep neural networks, but the common objective of generating a single segmentation output that accurately matches the image's content may not be suitable for…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Lukas Zbinden , Lars Doorenbos , Theodoros Pissas , Adrian Thomas Huber , Raphael Sznitman , Pablo Márquez-Neila

Generalized Zero-Shot Learning (GZSL) and Open-Set Recognition (OSR) are two mainstream settings that greatly extend conventional visual object recognition. However, the limitations of their problem settings are not negligible. The novel…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Zhaonan Li , Hongfu Liu

This work addresses the task of generalized class discovery (GCD) in instance segmentation. The goal is to discover novel classes and obtain a model capable of segmenting instances of both known and novel categories, given labeled and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Cuong Manh Hoang , Yeejin Lee , Byeongkeun Kang

While existing Generalized Category Discovery (GCD) models have achieved significant success, their performance with limited labeled samples and a small number of known categories remains largely unexplored. In this work, we introduce the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Yunhan Ren , Feng Luo , Siyu Huang

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

Open set domain recognition has got the attention in recent years. The task aims to specifically classify each sample in the practical unlabeled target domain, which consists of all known classes in the manually labeled source domain and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Xinxing He , Yuan Yuan , Zhiyu Jiang
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