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相关论文: Unlocking Vision-Language Models for Video Anomaly…

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The increasing sophistication of large vision-language models (LVLMs) has been accompanied by advances in safety alignment mechanisms designed to prevent harmful content generation. However, these defenses remain vulnerable to sophisticated…

密码学与安全 · 计算机科学 2026-04-09 Quanchen Zou , Zonghao Ying , Moyang Chen , Wenzhuo Xu , Yisong Xiao , Yakai Li , Deyue Zhang , Dongdong Yang , Zhao Liu , Xiangzheng Zhang

This study investigates unsupervised anomaly action recognition, which identifies video-level abnormal-human-behavior events in an unsupervised manner without abnormal samples, and simultaneously addresses three limitations in the…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Fumiaki Sato , Ryo Hachiuma , Taiki Sekii

Driven by large-scale contrastive vision-language pre-trained models such as CLIP, recent advancements in the image-text matching task have achieved remarkable success in representation learning. Due to image-level visual-language…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Mengxiao Tian , Xinxiao Wu , Shuo Yang

Pre-trained vision-language models, e.g., CLIP, working with manually designed prompts have demonstrated great capacity of transfer learning. Recently, learnable prompts achieve state-of-the-art performance, which however are prone to…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Baoshuo Kan , Teng Wang , Wenpeng Lu , Xiantong Zhen , Weili Guan , Feng Zheng

Precise anomaly detection in medical images is critical for clinical decision-making. While recent unsupervised or semi-supervised anomaly detection methods trained on large-scale normal data show promising results, they lack fine-grained…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Yue Zhou , Yuan Bi , Wenjuan Tong , Wei Wang , Nassir Navab , Zhongliang Jiang

Video anomaly detection (VAD) aims to identify and ground anomalous behaviors or events in videos, serving as a core technology in the fields of intelligent surveillance and public safety. With the advancement of deep learning, the…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Shibo Gao , Peipei Yang , Haiyang Guo , Yangyang Liu , Yi Chen , Shuai Li , Han Zhu , Jian Xu , Xu-Yao Zhang , Linlin Huang

Training-free video anomaly detection (VAD) has recently emerged as a scalable alternative to supervised approaches, yet existing methods largely rely on static prompting and geometry-agnostic feature fusion. As a result, anomaly inference…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Ali Zia , Usman Ali , Muhammad Umer Ramzan , Hamza Abid , Abdul Rehman , Wei Xiang

Video Anomaly Detection (VAD) aims to identify anomalous events in videos and accurately determine their time intervals. Current VAD methods mainly fall into two categories: traditional DNN-based approaches that focus on temporal…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Shibo Gao , Peipei Yang , Yangyang Liu , Yi Chen , Han Zhu , Xuyao Zhang , Linlin Huang

Anomaly detection in videos refers to the identification of events that do not conform to expected behavior. However, almost all existing methods tackle the problem by minimizing the reconstruction errors of training data, which cannot…

计算机视觉与模式识别 · 计算机科学 2018-03-14 Wen Liu , Weixin Luo , Dongze Lian , Shenghua Gao

Vision-language models (VLMs) like CLIP have been cherished for their ability to perform zero-shot visual recognition on open-vocabulary concepts. This is achieved by selecting the object category whose textual representation bears the…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Shaunak Halbe , Junjiao Tian , K J Joseph , James Seale Smith , Katherine Stevo , Vineeth N Balasubramanian , Zsolt Kira

Object-aware reasoning in vision-language tasks poses significant challenges for current models, particularly in handling unseen objects, reducing hallucinations, and capturing fine-grained relationships in complex visual scenes. To address…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Antonio Carlos Rivera , Anthony Moore , Steven Robinson

Prompt learning is an effective method to customize Vision-Language Models (VLMs) for various downstream tasks, involving tuning very few parameters of input prompt tokens. Recently, prompt pretraining in large-scale dataset (e.g.,…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Zhenyuan Chen , Lingfeng Yang , Shuo Chen , Zhaowei Chen , Jiajun Liang , Xiang Li

Video Anomaly Detection (VAD) involves detecting anomalous events in videos, presenting a significant and intricate task within intelligent video surveillance. Existing studies often concentrate solely on features acquired from limited…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Zhewen Deng , Dongyue Chen , Shizhuo Deng

Zero-shot action recognition is challenging due to the semantic gap between seen and unseen classes. We present a novel framework that enhances CLIP with disentangled embeddings and semantic-guided interaction. A Motion Separation Module…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Yiming Wang , Frederick W. B. Li , Jingyun Wang

Instruction-following agents must ground language into their observation and action spaces. Learning to ground language is challenging, typically requiring domain-specific engineering or large quantities of human interaction data. To…

人工智能 · 计算机科学 2023-06-16 Theodore Sumers , Kenneth Marino , Arun Ahuja , Rob Fergus , Ishita Dasgupta

Reliable prediction by classifiers is crucial for their deployment in high security and dynamically changing situations. However, modern neural networks often exhibit overconfidence for misclassified predictions, highlighting the need for…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Fanhu Zeng , Zhen Cheng , Fei Zhu , Xu-Yao Zhang

We propose a semi-supervised model for detecting anomalies in videos inspiredby the Video Pixel Network [van den Oord et al., 2016]. VPN is a probabilisticgenerative model based on a deep neural network that estimates the discrete…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Itamar Ben-Ari , Ravid Shwartz-Ziv

Intelligent anomaly detection in dynamic visual environments requires reconciling real-time performance with semantic interpretability. Conventional approaches address only fragments of this challenge. Reconstruction-based models capture…

计算机视觉与模式识别 · 计算机科学 2026-01-19 Tayyab Rehman , Giovanni De Gasperis , Aly Shmahell

Detecting video moments and highlights from natural-language queries have been unified by transformer-based methods. Other works use generative Multimodal LLM (MLLM) to predict moments and/or highlights as text timestamps, utilizing its…

计算机视觉与模式识别 · 计算机科学 2025-12-16 I Putu Andika Bagas Jiwanta , Ayu Purwarianti

Text-to-video models have made remarkable advancements through optimization on high-quality text-video pairs, where the textual prompts play a pivotal role in determining quality of output videos. However, achieving the desired output often…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Yatai Ji , Jiacheng Zhang , Jie Wu , Shilong Zhang , Shoufa Chen , Chongjian GE , Peize Sun , Weifeng Chen , Wenqi Shao , Xuefeng Xiao , Weilin Huang , Ping Luo
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