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Human-Object interaction (HOI) detection aims to localize and infer relationships between human and objects in an image. It is challenging because an enormous number of possible combinations of objects and verbs types forms a long-tail…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zhi Hou , Xiaojiang Peng , Yu Qiao , Dacheng Tao

The adaptation of large-scale vision-language models (VLMs) to downstream tasks with limited labeled data remains a significant challenge. While parameter-efficient prompt learning methods offer a promising path, they often suffer from…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Enming Zhang , Jiayang Li , Yanru Wu , Zhenyu Liu , Yang Li

Zero-Shot Anomaly Detection (ZSAD) aims to identify and localize anomalous regions in images of unseen object classes. While recent methods based on vision-language models like CLIP show promise, their performance is constrained by existing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yuheng Shao , Lizhang Wang , Changhao Li , Peixian Chen , Qinyuan Liu

In this paper, we develop \textbf{MP-HOI}, a powerful Multi-modal Prompt-based HOI detector designed to leverage both textual descriptions for open-set generalization and visual exemplars for handling high ambiguity in descriptions,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Jie Yang , Bingliang Li , Ailing Zeng , Lei Zhang , Ruimao Zhang

The key of Human-Object Interaction(HOI) recognition is to infer the relationship between human and objects. Recently, the image's Human-Object Interaction(HOI) detection has made significant progress. However, there is still room for…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Hongsheng Li , Guangming Zhu , Wu Zhen , Lan Ni , Peiyi Shen , Liang Zhang , Ning Wang , Cong Hua

Human-annotated attributes serve as powerful semantic embeddings in zero-shot learning. However, their annotation process is labor-intensive and needs expert supervision. Current unsupervised semantic embeddings, i.e., word embeddings,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Wenjia Xu , Yongqin Xian , Jiuniu Wang , Bernt Schiele , Zeynep Akata

Vision-Language Models (VLMs), such as CLIP, have significantly advanced zero-shot image recognition. However, their performance remains limited by suboptimal prompt engineering and poor adaptability to target classes. While recent methods…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Hui Liu , Kecheng Chen , Jialiang Wang , Xianming Liu , Wenya Wang , Haoliang Li

Open-Set Object Detection (OSOD) enables recognition of novel categories beyond fixed classes but faces challenges in aligning text representations with complex visual concepts and the scarcity of image-text pairs for rare categories. This…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Weifu Fu , Jinyang Li , Bin-Bin Gao , Jialin Li , Yuhuan Lin , Hanqiu Deng , Wenbing Tao , Yong Liu , Chengjie Wang

Accurate video moment retrieval (VMR) requires universal visual-textual correlations that can handle unknown vocabulary and unseen scenes. However, the learned correlations are likely either biased when derived from a limited amount of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Dezhao Luo , Jiabo Huang , Shaogang Gong , Hailin Jin , Yang Liu

Natural Human-Robot Interaction (HRI) is one of the key components for service robots to be able to work in human-centric environments. In such dynamic environments, the robot needs to understand the intention of the user to accomplish a…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Giorgos Tziafas , Hamidreza Kasaei

Human-Object Interaction (HOI) detection aims to identify humans and objects within images and interpret their interactions. Existing HOI methods rely heavily on large datasets with manual annotations to learn interactions from visual cues.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Francesco Tonini , Lorenzo Vaquero , Alessandro Conti , Cigdem Beyan , Elisa Ricci

CLIP (Contrastive Language-Image Pretraining) is well-developed for open-vocabulary zero-shot image-level recognition, while its applications in pixel-level tasks are less investigated, where most efforts directly adopt CLIP features…

Computer Vision and Pattern Recognition · Computer Science 2023-04-17 Jie Guo , Qimeng Wang , Yan Gao , Xiaolong Jiang , Xu Tang , Yao Hu , Baochang Zhang

Vision-language models enable open-world classification of objects without the need for any retraining. While this zero-shot paradigm marks a significant advance, even today's best models exhibit skewed performance when objects are…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Mazda Moayeri , Michael Rabbat , Mark Ibrahim , Diane Bouchacourt

Few-shot action recognition aims to enable models to quickly learn new action categories from limited labeled samples, addressing the challenge of data scarcity in real-world applications. Current research primarily addresses three core…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Xiaoyang Li , Mingming Lu , Ruiqi Wang , Hao Li , Zewei Le

The pre-trained vision-language model, exemplified by CLIP, advances zero-shot semantic segmentation by aligning visual features with class embeddings through a transformer decoder to generate semantic masks. Despite its effectiveness,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Zicheng Zhang , Tong Zhang , Yi Zhu , Jianzhuang Liu , Xiaodan Liang , QiXiang Ye , Wei Ke

Open-world object counting leverages the robust text-image alignment of pre-trained vision-language models (VLMs) to enable counting of arbitrary categories in images specified by textual queries. However, widely adopted naive fine-tuning…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Yiming Zhao , Guorong Li , Laiyun Qing , Amin Beheshti , Jian Yang , Michael Sheng , Yuankai Qi , Qingming Huang

Leveraging class semantic descriptions and examples of known objects, zero-shot learning makes it possible to train a recognition model for an object class whose examples are not available. In this paper, we propose a novel zero-shot…

Computer Vision and Pattern Recognition · Computer Science 2017-08-22 Soravit Changpinyo , Wei-Lun Chao , Fei Sha

Vision-language models (VLMs) have enabled strong zero-shot classification through image-text alignment. Yet, their purely visual inference capabilities remain under-explored. In this work, we conduct a comprehensive evaluation of both…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Illia Volkov , Nikita Kisel , Klara Janouskova , Jiri Matas

Adopting contrastive image-text pretrained models like CLIP towards video classification has gained attention due to its cost-effectiveness and competitive performance. However, recent works in this area face a trade-off. Finetuning the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Syed Talal Wasim , Muzammal Naseer , Salman Khan , Fahad Shahbaz Khan , Mubarak Shah

Vision language foundation models such as CLIP exhibit impressive zero-shot generalization yet remain vulnerable to spurious correlations across visual and textual modalities. Existing debiasing approaches often address a single modality…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Sunny Gupta , Shounak Das , Amit Sethi