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Open-vocabulary object detection (OVOD) aims to recognize novel objects whose categories are not included in the training set. In order to classify these unseen classes during training, many OVOD frameworks leverage the zero-shot capability…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Joonhyun Jeong , Geondo Park , Jayeon Yoo , Hyungsik Jung , Heesu Kim

Short text classification is a fundamental task in natural language processing. It is hard due to the lack of context information and labeled data in practice. In this paper, we propose a new method called SHINE, which is based on graph…

Computation and Language · Computer Science 2021-11-02 Yaqing Wang , Song Wang , Quanming Yao , Dejing Dou

The advancement of object detection (OD) in open-vocabulary and open-world scenarios is a critical challenge in computer vision. This work introduces OmDet, a novel language-aware object detection architecture, and an innovative training…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Tiancheng Zhao , Peng Liu , Kyusong Lee

The key to OOD detection has two aspects: generalized feature representation and precise category description. Recently, vision-language models such as CLIP provide significant advances in both two issues, but constructing precise category…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Kai Liu , Zhihang Fu , Chao Chen , Sheng Jin , Ze Chen , Mingyuan Tao , Rongxin Jiang , Jieping Ye

Open-vocabulary semantic segmentation enables models to identify novel object categories beyond their training data. While this flexibility represents a significant advancement, current approaches still rely on manually specified class…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Klara Reichard , Giulia Rizzoli , Stefano Gasperini , Lukas Hoyer , Pietro Zanuttigh , Nassir Navab , Federico Tombari

Open-vocabulary object detection (OVOD) aims to detect both seen and unseen categories, yet existing methods often struggle to generalize to novel objects due to limited integration of global and local contextual cues. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Soichiro Okazaki , Tatsuya Sasaki , Hiroki Ohashi

Open-Vocabulary Semantic Segmentation (OVSS) assigns pixel-level labels from an open set of text-defined categories, demanding reliable generalization to unseen classes at inference. Although modern vision-language models (VLMs) support…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Saikat Dutta , Biplab Banerjee , Hamid Rezatofighi

Despite the remarkable accuracy of deep neural networks in object detection, they are costly to train and scale due to supervision requirements. Particularly, learning more object categories typically requires proportionally more bounding…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Alireza Zareian , Kevin Dela Rosa , Derek Hao Hu , Shih-Fu Chang

Existing studies typically investigate domain shift and category shift as independent problems, however, in real-world scenarios, the two types of shifts often occur simultaneously and interact, leading to significant degradation in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yupeng Zhang , Ruize Han , Fangnan Zhou , Wei Feng , Liang Wan

Classical object detectors are incapable of detecting novel class objects that are not encountered before. Regarding this issue, Open-Vocabulary Object Detection (OVOD) is proposed, which aims to detect the objects in the candidate class…

Computer Vision and Pattern Recognition · Computer Science 2024-03-15 Zhao Wang , Aoxue Li , Fengwei Zhou , Zhenguo Li , Qi Dou

Recent advances in large vision-language models have revolutionized the image classification paradigm. Despite showing impressive zero-shot capabilities, a pre-defined set of categories, a.k.a. the vocabulary, is assumed at test time for…

Computer Vision and Pattern Recognition · Computer Science 2024-01-15 Alessandro Conti , Enrico Fini , Massimiliano Mancini , Paolo Rota , Yiming Wang , Elisa Ricci

Real-time open-vocabulary object detection (OVOD) is essential for practical deployment in dynamic environments, where models must recognize a large and evolving set of categories under strict latency constraints. Current real-time OVOD…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Leilei Wang , Longfei Liu , Xi Shen , Xuanlong Yu , Ying Tiffany He , Fei Richard Yu , Yingyi Chen

Open-Vocabulary Segmentation (OVS) methods are capable of performing semantic segmentation without relying on a fixed vocabulary, and in some cases, without training or fine-tuning. However, OVS methods typically require a human in the loop…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Osman Ülger , Maksymilian Kulicki , Yuki Asano , Martin R. Oswald

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

A key benefit of deep vision-language models such as CLIP is that they enable zero-shot open vocabulary classification; the user has the ability to define novel class labels via natural language prompts at inference time. However, while…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 A K Nirala , A Joshi , C Hegde , S Sarkar

Open-vocabulary 3D object detection methods are able to localize 3D boxes of classes unseen during training. Despite the name, existing methods rely on user-specified classes both at training and inference. We propose to study…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Haomeng Zhang , Kuan-Chuan Peng , Suhas Lohit , Raymond A. Yeh

Most object detectors operate under a closed-world assumption, recognizing only the classes annotated in the training dataset and failing when encountering novel objects. Open-World Object Detection (OWOD) relaxes this assumption by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yuchen Zhang , Yao Lu , Johannes Betz

As object detectors are increasingly deployed as black-box cloud services or pre-trained models with restricted access to the original training data, the challenge of zero-shot object-level out-of-distribution (OOD) detection arises. This…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Bin Zhang , Xiaoyang Qu , Guokuan Li , Jiguang Wan , Jianzong Wang

In the field of visual scene understanding, deep neural networks have made impressive advancements in various core tasks like segmentation, tracking, and detection. However, most approaches operate on the close-set assumption, meaning that…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Jianzong Wu , Xiangtai Li , Shilin Xu , Haobo Yuan , Henghui Ding , Yibo Yang , Xia Li , Jiangning Zhang , Yunhai Tong , Xudong Jiang , Bernard Ghanem , Dacheng Tao

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