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Aerial object detection plays a crucial role in numerous applications. However, most existing methods focus on detecting predefined object categories, limiting their applicability in real-world open scenarios. In this paper, we extend…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Guoting Wei , Xia Yuan , Yu Liu , Zhenhao Shang , Xizhe Xue , Peng Wang , Kelu Yao , Chunxia Zhao , Haokui Zhang , Rong Xiao

Pseudo-Labeling has emerged as a simple yet effective technique for semi-supervised object detection (SSOD). However, the inevitable noise problem in pseudo-labels significantly degrades the performance of SSOD methods. Recent advances…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Yulin He , Wei Chen , Ke Liang , Yusong Tan , Zhengfa Liang , Yulan Guo

Recent vision-language pre-trained models (VL-PTMs) have shown remarkable success in open-vocabulary tasks. However, downstream use cases often involve further fine-tuning of VL-PTMs, which may distort their general knowledge and impair…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Lin Zhu , Yifeng Yang , Qinying Gu , Xinbing Wang , Chenghu Zhou , Nanyang Ye

Weakly-Supervised Semantic Segmentation (WSSS) methods with image-level labels generally train a classification network to generate the Class Activation Maps (CAMs) as the initial coarse segmentation labels. However, current WSSS methods…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Lixiang Ru , Bo Du , Yibing Zhan , Chen Wu

Recent advances in Multimodal Large Language Models (MLLMs) have enabled unified multimodal understanding and generation. However, they still struggle with fine-grained text-image alignment, often failing to faithfully depict objects with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Yoonjin Oh , Yongjin Kim , Hyomin Kim , Donghwan Chi , Sungwoong Kim

In recent years, object detection has achieved significant progress, especially in the field of open-vocabulary object detection. Unlike traditional methods that rely on predefined categories, open-vocabulary approaches can detect arbitrary…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 ZhiXin Sun

Existing vision-language model (VLM)-based methods for out-of-distribution (OOD) detection typically rely on similarity scores between input images and in-distribution (ID) text prototypes. However, the modality gap between image and text…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Yimu Wang , Evelien Riddell , Adrian Chow , Sean Sedwards , Krzysztof Czarnecki

Object Simultaneous Localization and Mapping (SLAM) systems struggle to correctly associate semantically similar objects in close proximity, especially in cluttered indoor environments and when scenes change. We present Semantic Enhancement…

Robotics · Computer Science 2025-06-18 Jungseok Hong , Ran Choi , John J. Leonard

Open-Vocabulary Object Detection (OVOD) has achieved remarkable success in generalizing to novel categories. However, this success often rests on the implicit assumption of domain stationarity. In this work, we provide a principled revisit…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Xiaoran Xu , Xiaoshan Yang , Jiangang Yang , Yifan Xu , Jian Liu , Changsheng Xu

Zero-shot out-of-vocabulary detection (ZS-OOVD) aims to accurately recognize objects of in-vocabulary (IV) categories provided at zero-shot inference, while simultaneously rejecting undefined ones (out-of-vocabulary, OOV) that lack…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Binyi Su , Chenghao Huang , Haiyong Chen

Open-vocabulary 3D scene understanding (OV-3D) aims to localize and classify novel objects beyond the closed set of object classes. However, existing approaches and benchmarks primarily focus on the open vocabulary problem within the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Youjun Zhao , Jiaying Lin , Shuquan Ye , Qianshi Pang , Rynson W. H. Lau

Prompt tuning based on Context Optimization (CoOp) effectively adapts visual-language models (VLMs) to downstream tasks by inferring additional learnable prompt tokens. However, these tokens are less discriminative as they are independent…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Hantao Yao , Rui Zhang , Lu Yu , Yongdong Zhang , Changsheng Xu

One-shot object detection (OSOD) aims to detect all object instances towards the given category specified by a query image. Most existing studies in OSOD endeavor to explore effective cross-image correlation and alleviate the semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Wenwen Zhang , Xinyu Xiao , Hangguan Shan , Eryun Liu

Open-world object detection (OWOD) extends traditional object detection to identifying both known and unknown object, necessitating continuous model adaptation as new annotations emerge. Current approaches face significant limitations: 1)…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Junwen Duan , Wei Xue , Ziyao Kang , Shixia Liu , Jiazhi Xia

Semi-supervised object detection (SSOD) based on pseudo-labeling significantly reduces dependence on large labeled datasets by effectively leveraging both labeled and unlabeled data. However, real-world applications of SSOD often face…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Moussa Kassem Sbeyti , Nadja Klein , Azarm Nowzad , Fikret Sivrikaya , Sahin Albayrak

Due to the dynamic nature of human language, automatic speech recognition (ASR) systems need to continuously acquire new vocabulary. Out-Of-Vocabulary (OOV) words, such as trending words and new named entities, pose problems to modern ASR…

Computation and Language · Computer Science 2023-02-22 Leyuan Qu , Cornelius Weber , Stefan Wermter

Existing object detection methods are bounded in a fixed-set vocabulary by costly labeled data. When dealing with novel categories, the model has to be retrained with more bounding box annotations. Natural language supervision is an…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Chuang Lin , Peize Sun , Yi Jiang , Ping Luo , Lizhen Qu , Gholamreza Haffari , Zehuan Yuan , Jianfei Cai

Weakly-Supervised Change Detection (WSCD) aims to distinguish specific object changes (e.g., objects appearing or disappearing) from background variations (e.g., environmental changes due to light, weather, or seasonal shifts) in paired…

Computer Vision and Pattern Recognition · Computer Science 2025-12-15 Zhenghui Zhao , Chen Wu , Di Wang , Hongruixuan Chen , Cuiqun Chen , Zhuo Zheng , Bo Du , Liangpei Zhang

Image segmentation beyond predefined categories is a key challenge in remote sensing, where novel and unseen classes often emerge during inference. Open-vocabulary image Segmentation addresses these generalization issues in traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Saikat Dutta , Akhil Vasim , Siddhant Gole , Hamid Rezatofighi , Biplab Banerjee

Weakly supervised visual grounding (VG) aims to locate objects in images based on text descriptions. Despite significant progress, existing methods lack strong cross-modal reasoning to distinguish subtle semantic differences in text…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yidan Wang , Chenyi Zhuang , Wutao Liu , Pan Gao , Nicu Sebe