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Open-vocabulary detection (OVD) is a challenging task to detect and classify objects from an unrestricted set of categories, including those unseen during training. Existing open-vocabulary detectors are limited by complex visual-textual…

Computer Vision and Pattern Recognition · Computer Science 2025-02-27 Caixiong Li , Xiongwei Zhao , Jinhang Zhang , Xing Zhang , Qihao Sun , Zhou Wu

Object detection in Unmanned Aerial Vehicle (UAV) images has emerged as a focal area of research, which presents two significant challenges: i) objects are typically small and dense within vast images; ii) computational resource constraints…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Chen Li , Rui Zhao , Zeyu Wang , Huiying Xu , Xinzhong Zhu

Open-vocabulary detection (OVD) is a new object detection paradigm, aiming to localize and recognize unseen objects defined by an unbounded vocabulary. This is challenging since traditional detectors can only learn from pre-defined…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Jincheng Li , Chunyu Xie , Xiaoyu Wu , Bin Wang , Dawei Leng

Open-vocabulary 3D object detection for autonomous driving aims to detect novel objects beyond the predefined training label sets in point cloud scenes. Existing approaches achieve this by connecting traditional 3D object detectors with…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Adrian Chow , Evelien Riddell , Yimu Wang , Sean Sedwards , Krzysztof Czarnecki

Open-vocabulary object detection (OVD) models offer remarkable flexibility by detecting objects from arbitrary text queries. However, their zero-shot performance in specialized domains like Remote Sensing (RS) is often compromised by the…

Small object detection in unmanned aerial vehicle (UAV) imagery is challenging, mainly due to scale variation, structural detail degradation, and limited computational resources. In high-altitude scenarios, fine-grained features are further…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Xuecheng Bai , Yuxiang Wang , Chuanzhi Xu , Boyu Hu , Kang Han , Ruijie Pan , Xiaowei Niu , Xiaotian Guan , Liqiang Fu , Pengfei Ye

Object detection in unmanned aerial vehicle (UAV) remote sensing images poses significant challenges due to unstable image quality, small object sizes, complex backgrounds, and environmental occlusions. Small objects, in particular, occupy…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Xudong Wang , Yaxin Peng , Chaomin Shen

Unmanned Aerial Vehicle (UAV) swarm systems necessitate efficient collaborative perception mechanisms for diverse operational scenarios. Current Bird's Eye View (BEV)-based approaches exhibit two main limitations: bounding-box…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Zefu Lin , Wenbo Chen , Xiaojuan Jin , Yuran Yang , Lue Fan , Yixin Zhang , Yufeng Zhang , Zhaoxiang Zhang

Unmanned aerial vehicle object detection (UAV-OD) has been widely used in various scenarios. However, most existing UAV-OD algorithms rely on manually designed components, which require extensive tuning. End-to-end models that do not depend…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Huaxiang Zhang , Kai Liu , Zhongxue Gan , Guo-Niu Zhu

Open-vocabulary 3D Object Detection (OV-3DDet) aims to detect objects from an arbitrary list of categories within a 3D scene, which remains seldom explored in the literature. There are primarily two fundamental problems in OV-3DDet, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Yang Cao , Yihan Zeng , Hang Xu , Dan Xu

Open-vocabulary 3D Object Detection (OV-3DDet) addresses the detection of objects from an arbitrary list of novel categories in 3D scenes, which remains a very challenging problem. In this work, we propose CoDAv2, a unified framework…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Yang Cao , Yihan Zeng , Hang Xu , Dan Xu

Current point-cloud detection methods have difficulty detecting the open-vocabulary objects in the real world, due to their limited generalization capability. Moreover, it is extremely laborious and expensive to collect and fully annotate a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Yuheng Lu , Chenfeng Xu , Xiaobao Wei , Xiaodong Xie , Masayoshi Tomizuka , Kurt Keutzer , Shanghang Zhang

Traditional closed-set 3D detection frameworks fail to meet the demands of open-world applications like autonomous driving. Existing open-vocabulary 3D detection methods typically adopt a two-stage pipeline consisting of pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Qi Liu , Yabei Li , Hongsong Wang , Lei He

Open-vocabulary object detection (OVD) has been studied with Vision-Language Models (VLMs) to detect novel objects beyond the pre-trained categories. Previous approaches improve the generalization ability to expand the knowledge of the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Jooyeon Kim , Eulrang Cho , Sehyung Kim , Hyunwoo J. Kim

Learning from pseudo-labels that generated with VLMs~(Vision Language Models) has been shown as a promising solution to assist open vocabulary detection (OVD) in recent studies. However, due to the domain gap between VLM and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Kuo Wang , Lechao Cheng , Weikai Chen , Pingping Zhang , Liang Lin , Fan Zhou , Guanbin Li

Existing open-vocabulary object detection (OVD) develops methods for testing unseen categories by aligning object region embeddings with corresponding VLM features. A recent study leverages the idea that VLMs implicitly learn compositional…

Computer Vision and Pattern Recognition · Computer Science 2024-12-25 Hojun Choi , Junsuk Choe , Hyunjung Shim

Open-vocabulary object detection (OVOD) aims to detect the objects beyond the set of classes observed during training. This work introduces a straightforward and efficient strategy that utilizes pre-trained vision-language models (VLM),…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Shilin Xu , Xiangtai Li , Size Wu , Wenwei Zhang , Yunhai Tong , Chen Change Loy

Open-Vocabulary Object Detection (OVOD) aims to detect novel objects beyond a given set of base categories on which the detection model is trained. Recent OVOD methods focus on adapting the image-level pre-trained vision-language models…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Ruohuan Fang , Guansong Pang , Xiao Bai

Large foundation models trained on large-scale vision-language data can boost Open-Vocabulary Object Detection (OVD) via synthetic training data, yet the hand-crafted pipelines often introduce bias and overfit to specific prompts. We…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Yang Zhou , Shiyu Zhao , Yuxiao Chen , Zhenting Wang , Can Jin , Dimitris N. Metaxas

Open-vocabulary detection is a challenging task due to the requirement of detecting objects based on class names, including those not encountered during training. Existing methods have shown strong zero-shot detection capabilities through…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Hao Wang , Pengzhen Ren , Zequn Jie , Xiao Dong , Chengjian Feng , Yinlong Qian , Lin Ma , Dongmei Jiang , Yaowei Wang , Xiangyuan Lan , Xiaodan Liang