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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

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

Scene classification has established itself as a challenging research problem. Compared to images of individual objects, scene images could be much more semantically complex and abstract. Their difference mainly lies in the level of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Ji Zhang , Jean-Paul Ainam , Li-hui Zhao , Wenai Song , Xin Wang

Generalized Category Discovery is a significant and complex task that aims to identify both known and undefined novel categories from a set of unlabeled data, leveraging another labeled dataset containing only known categories. The primary…

Machine Learning · Computer Science 2024-12-18 Wenbin An , Haonan Lin , Jiahao Nie , Feng Tian , Wenkai Shi , Yaqiang Wu , Qianying Wang , Ping Chen

Open-Set Object Detection (OSOD) has emerged as a contemporary research direction to address the detection of unknown objects. Recently, few works have achieved remarkable performance in the OSOD task by employing contrastive clustering to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Hiran Sarkar , Vishal Chudasama , Naoyuki Onoe , Pankaj Wasnik , Vineeth N Balasubramanian

In this paper, we tackle the problem of Generalized Category Discovery (GCD). Given a dataset containing both labelled and unlabelled images, the objective is to categorize all images in the unlabelled subset, irrespective of whether they…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Yuanpei Liu , Kai Han

We introduce the first unified framework for *Fine-Grained Domain-Generalized Generalized Category Discovery* (FG-DG-GCD), bringing open-world recognition closer to real-world deployment under domain shift. Unlike conventional GCD, which…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Vaibhav Rathore , Divyam Gupta , Moloud Abdar , Subhasis Chaudhuri , Biplab Banerjee

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 discover novel categories in unlabelled datasets using knowledge learned from labelled samples. Previous studies argued that parametric classifiers are prone to overfitting to seen categories,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Xin Wen , Bingchen Zhao , Xiaojuan Qi

Generalized Category Discovery (GCD) is a practical and challenging open-world task that aims to recognize both known and novel categories in unlabeled data using limited labeled data from known categories. Due to the lack of supervision,…

Computation and Language · Computer Science 2026-05-06 Henry Peng Zou , Siffi Singh , Yi Nian , Jianfeng He , Jason Cai , Saab Mansour , Hang Su

Existing object detectors often struggle to generalize across domains while adapting to emerging novel categories. Adaptive open-set object detection (AOOD) addresses this challenge by training on base categories in the source domain and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yuqi Ji , Junjie Ke , Lihuo He , Lizhi Wang , Xinbo Gao

Generalized Category Discovery (GCD) aims to cluster unlabeled images into known and novel categories using labeled images from known classes. To address the challenge of transferring features from known to unknown classes while mitigating…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Bhupendra Solanki , Ashwin Nair , Mainak Singha , Souradeep Mukhopadhyay , Ankit Jha , Biplab Banerjee

Generalized Category Discovery (GCD) is an emerging and challenging open-world problem that has garnered increasing attention in recent years. Most existing GCD methods focus on discovering categories in static images. However, relying…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Zhang Jing , Pu Nan , Xie Yu Xiang , Guo Yanming , Lu Qianqi , Zou Shiwei , Yan Jie , Chen Yan

Camouflaged Object Detection (COD) aims to identify objects that blend seamlessly into their surroundings. The inherent visual complexity of camouflaged objects, including their low contrast with the background, diverse textures, and subtle…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Chenxi Zhang , Qing Zhang , Jiayun Wu , Youwei Pang

Generalized Category Discovery (GCD) aims to recognize both known and novel categories from a set of unlabeled data, based on another dataset labeled with only known categories. Without considering differences between known and novel…

Computation and Language · Computer Science 2023-03-16 Wenbin An , Feng Tian , Qinghua Zheng , Wei Ding , QianYing Wang , Ping Chen

Generalized Category Discovery (GCD) is a challenging task in which, given a partially labelled dataset, models must categorize all unlabelled instances, regardless of whether they come from labelled categories or from new ones. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Hongjun Wang , Sagar Vaze , Kai Han

Generalized Class Discovery (GCD) aims to dynamically assign labels to unlabelled data partially based on knowledge learned from labelled data, where the unlabelled data may come from known or novel classes. The prevailing approach…

Machine Learning · Computer Science 2024-05-01 Ye Wang , Yaxiong Wang , Yujiao Wu , Bingchen Zhao , Xueming Qian

Many objects do not appear frequently enough in complex scenes (e.g., certain handbags in living rooms) for training an accurate object detector, but are often found frequently by themselves (e.g., in product images). Yet, these…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Cheng Zhang , Tai-Yu Pan , Yandong Li , Hexiang Hu , Dong Xuan , Soravit Changpinyo , Boqing Gong , Wei-Lun Chao

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

Generalized Category Discovery (GCD) aims to identify a mix of known and novel categories within unlabeled data sets, providing a more realistic setting for image recognition. Essentially, GCD needs to remember existing patterns thoroughly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Xinzi Cao , Xiawu Zheng , Guanhong Wang , Weijiang Yu , Yunhang Shen , Ke Li , Yutong Lu , Yonghong Tian