English
Related papers

Related papers: Unlocking Vision-Language Models for Video Anomaly…

200 papers

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

Zero-shot anomaly detection (ZSAD) targets the identification of anomalies within images from arbitrary novel categories. This study introduces AdaCLIP for the ZSAD task, leveraging a pre-trained vision-language model (VLM), CLIP. AdaCLIP…

Computer Vision and Pattern Recognition · Computer Science 2025-02-17 Yunkang Cao , Jiangning Zhang , Luca Frittoli , Yuqi Cheng , Weiming Shen , Giacomo Boracchi

Video anomaly detection (VAD) with weak supervision has achieved remarkable performance in utilizing video-level labels to discriminate whether a video frame is normal or abnormal. However, current approaches are inherently limited to a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Peng Wu , Xuerong Zhou , Guansong Pang , Yujia Sun , Jing Liu , Peng Wang , Yanning Zhang

Video Anomaly Understanding (VAU) extends traditional Video Anomaly Detection (VAD) by not only localizing anomalies but also describing and reasoning about their context. Existing VAU approaches often rely on fine-tuned multimodal large…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Iñaki Erregue , Kamal Nasrollahi , Sergio Escalera

Video anomaly detection is a subject of great interest across industrial and academic domains due to its crucial role in computer vision applications. However, the inherent unpredictability of anomalies and the scarcity of anomaly samples…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Yalong Jiang , Liquan Mao

Video Anomaly Understanding (VAU) is essential for applications such as smart cities, security surveillance, and disaster alert systems, yet remains challenging due to its demand for fine-grained spatio-temporal perception and robust…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Liyun Zhu , Qixiang Chen , Xi Shen , Xiaodong Cun

Video anomaly detection (VAD) is crucial for video analysis and surveillance in computer vision. However, existing VAD models rely on learned normal patterns, which makes them difficult to apply to diverse environments. Consequently, users…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Sunghyun Ahn , Youngwan Jo , Kijung Lee , Sein Kwon , Inpyo Hong , Sanghyun Park

Fine-grained ship classification in remote sensing (RS-FGSC) poses a significant challenge due to the high similarity between classes and the limited availability of labeled data, limiting the effectiveness of traditional supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Long Lan , Fengxiang Wang , Xiangtao Zheng , Zengmao Wang , Xinwang Liu

While mainstream vision-language models (VLMs) have advanced rapidly in understanding image level information, they still lack the ability to focus on specific areas designated by humans. Rather, they typically rely on large volumes of…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Kangyu Zhu , Ziyuan Qin , Huahui Yi , Zekun Jiang , Qicheng Lao , Shaoting Zhang , Kang Li

Expressway video anomaly detection is essential for safety management. However, identifying anomalies across diverse scenes remains challenging, particularly for far-field targets exhibiting subtle abnormal vehicle motions. While…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Xiaowei Mao , Bowen Sui , Weijie Zhang , Yawen Yang , Shengnan Guo , Shilong Zhao , Jiaqi Lin , Tingrui Wu , Youfang Lin , Huaiyu Wa

In computer vision, fine-tuning is the de-facto approach to leverage pre-trained vision models to perform downstream tasks. However, deploying it in practice is quite challenging, due to adopting parameter inefficient global update and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Xing Nie , Bolin Ni , Jianlong Chang , Gaomeng Meng , Chunlei Huo , Zhaoxiang Zhang , Shiming Xiang , Qi Tian , Chunhong Pan

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

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

Prompt tuning has become a popular strategy for adapting Vision-Language Models (VLMs) to zero/few-shot visual recognition tasks. Some prompting techniques introduce prior knowledge due to its richness, but when learnable tokens are…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Shuchang Zhou , Jiwei Wei , Shiyuan He , Yuyang Zhou , Chaoning Zhang , Jie Zou , Ning Xie , Yang Yang

Prompt tuning, which involves training a small set of parameters, effectively enhances the pre-trained Vision-Language Models (VLMs) to downstream tasks. However, they often come at the cost of flexibility and adaptability when the tuned…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Mushui Liu , Bozheng Li , Yunlong Yu

We present SWIM (See What I Mean), a novel training strategy that aligns vision and language representations to enable fine-grained object understanding solely from textual prompts. Unlike existing approaches that require explicit visual…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Boyuan Sun , Bowen Yin , Yuanming Li , Xihan Wei , Qibin Hou

Large Vision-Language Models (LVLMs) have shown significant progress in video understanding, yet they face substantial challenges in tasks requiring precise spatiotemporal localization at the instance level. Existing methods primarily rely…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Yiming Zhao , Yu Zeng , Wenxuan Huang , Zhen Fang , Qing Miao , Qisheng Su , Jiawei Zhao , Jiayin Cai , Lin Chen , Zehui Chen , Yukun Qi , Yao Hu , Xiaolong Jiang , Feng Zhao

Detecting Human-Object Interactions (HOI) in zero-shot settings, where models must handle unseen classes, poses significant challenges. Existing methods that rely on aligning visual encoders with large Vision-Language Models (VLMs) to tap…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Qinqian Lei , Bo Wang , Robby T. Tan

Safe autonomous systems in complex environments require robust road anomaly segmentation to identify unknown obstacles. However, existing approaches often rely on pixel-level statistics to determine whether a region appears anomalous. This…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zhuolin He , Jiacheng Tang , Jian Pu , Xiangyang Xue

Recent efforts towards video anomaly detection (VAD) try to learn a deep autoencoder to describe normal event patterns with small reconstruction errors. The video inputs with large reconstruction errors are regarded as anomalies at the test…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Yuandu Lai , Yahong Han , Yaowei Wang