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Open-vocabulary object detection aims to detect novel object categories beyond the training set. The advanced open-vocabulary two-stage detectors employ instance-level visual-to-visual knowledge distillation to align the visual space of the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Zongyang Ma , Guan Luo , Jin Gao , Liang Li , Yuxin Chen , Shaoru Wang , Congxuan Zhang , Weiming Hu

Vision-and-language (V-L) tasks require the system to understand both vision content and natural language, thus learning fine-grained joint representations of vision and language (a.k.a. V-L representations) is of paramount importance.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Fenglin Liu , Xian Wu , Shen Ge , Xuancheng Ren , Wei Fan , Xu Sun , Yuexian Zou

Out-of-Distribution (OOD) detection is crucial for the reliable deployment of machine learning models in-the-wild, enabling accurate identification of test samples that differ from the training data distribution. Existing methods rely on…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Ruisong Han , Zongbo Han , Jiahao Zhang , Mingyue Cheng , Changqing Zhang

Traditional object detection are ill-equipped for incremental learning. However, fine-tuning directly on a well-trained detection model with only new data will leads to catastrophic forgetting. Knowledge distillation is a straightforward…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Tao Feng , Mang Wang

Object counting has progressed from class-specific models, which count only known categories, to class-agnostic models that generalize to unseen categories. The next challenge is Referring Expression Counting (REC), where the goal is to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Kostas Triaridis , Panagiotis Kaliosis , E-Ro Nguyen , Jingyi Xu , Hieu Le , Dimitris Samaras

We propose a method to learn explicit, class-conditioned spatial priors for object placement in natural scenes by distilling the implicit placement knowledge encoded in text-conditioned diffusion models. Prior work relies either on manually…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Marco Schouten , Ioannis Siglidis , Serge Belongie , Dim P. Papadopoulos

Blind face restoration aims to recover high-quality facial images from various unidentified sources of degradation, posing significant challenges due to the minimal information retrievable from the degraded images. Prior knowledge-based…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Wanglong Lu , Jikai Wang , Tao Wang , Kaihao Zhang , Xianta Jiang , Hanli Zhao

Recent Semi-Supervised Object Detection (SS-OD) methods are mainly based on self-training, i.e., generating hard pseudo-labels by a teacher model on unlabeled data as supervisory signals. Although they achieved certain success, the limited…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Qiushan Guo , Yao Mu , Jianyu Chen , Tianqi Wang , Yizhou Yu , Ping Luo

Open-vocabulary semantic segmentation aims to segment images into distinct semantic regions for both seen and unseen categories at the pixel level. Current methods utilize text embeddings from pre-trained vision-language models like CLIP…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Ziyu Zhao , Xiaoguang Li , Linjia Shi , Nasrin Imanpour , Song Wang

We present Language-mediated, Object-centric Representation Learning (LORL), a paradigm for learning disentangled, object-centric scene representations from vision and language. LORL builds upon recent advances in unsupervised object…

Machine Learning · Computer Science 2021-06-09 Ruocheng Wang , Jiayuan Mao , Samuel J. Gershman , Jiajun Wu

Generating precise class-aware pseudo ground-truths, a.k.a, class activation maps (CAMs), is essential for weakly-supervised semantic segmentation. The original CAM method usually produces incomplete and inaccurate localization maps. To…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Jinlong Li , Zequn Jie , Xu Wang , Xiaolin Wei , Lin Ma

The human vision and perception system is inherently incremental where new knowledge is continually learned over time whilst existing knowledge is retained. On the other hand, deep learning networks are ill-equipped for incremental…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Can Peng , Kun Zhao , Brian C. Lovell

Object detection is a pivotal task in computer vision that has received significant attention in previous years. Nonetheless, the capability of a detector to localise objects out of the training distribution remains unexplored. Whilst…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Brian K. S. Isaac-Medina , Yona Falinie A. Gaus , Neelanjan Bhowmik , Toby P. Breckon

Prompt learning has garnered attention for its efficiency over traditional model training and fine-tuning. However, existing methods, constrained by inadequate theoretical foundations, encounter difficulties in achieving causally invariant…

Artificial Intelligence · Computer Science 2025-07-29 Xinshu Li , Ruoyu Wang , Erdun Gao , Mingming Gong , Lina Yao

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

Open-vocabulary object detection (OVOD) has recently gained significant attention as a crucial step toward achieving human-like visual intelligence. Existing OVOD methods extend target vocabulary from pre-defined categories to open-world by…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Sunghun Kang , Junbum Cha , Jonghwan Mun , Byungseok Roh , Chang D. Yoo

Deep Learning (DL) has brought significant advances to robotics vision tasks. However, most existing DL methods have a major shortcoming, they rely on a static inference paradigm inherent in traditional computer vision pipelines. On the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Stefanos Ginargiros , Nikolaos Passalis , Anastasios Tefas

Dataset pruning -- selecting a small yet informative subset of training data -- has emerged as a promising strategy for efficient machine learning, offering significant reductions in computational cost and storage compared to alternatives…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Ryota Yagi

Open-vocabulary object detection (OVD) aims to recognize and localize object categories beyond the training set. Recent approaches leverage vision-language models to generate pseudo-labels using image-text alignment, allowing detectors to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Hojun Choi , Youngsun Lim , Jaeyo Shin , Hyunjung Shim

Traditional object detection systems are typically constrained to predefined categories, limiting their applicability in dynamic environments. In contrast, open-vocabulary object detection (OVD) enables the identification of objects from…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Tianyi Zhang , Antoine Simoulin , Kai Li , Sana Lakdawala , Shiqing Yu , Arpit Mittal , Hongyu Fu , Yu Lin