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MLLMs have been widely studied for video question answering recently. However, most existing assessments focus on natural videos, overlooking synthetic videos, such as AI-generated content (AIGC). Meanwhile, some works in video generation…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Tingyu Song , Tongyan Hu , Guo Gan , Yilun Zhao

Visual anomaly detection is a strongly application-driven field of research. Consequently, the connection between academia and industry is of paramount importance. In this regard, we present the VAND 3.0 Challenge to showcase current…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Lars Heckler-Kram , Ashwin Vaidya , Jan-Hendrik Neudeck , Ulla Scheler , Dick Ameln , Samet Akcay , Paula Ramos

Most existing video anomaly detectors rely solely on RGB frames, which lack the temporal resolution needed to capture abrupt or transient motion cues, key indicators of anomalous events. To address this limitation, we propose Image-Event…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Sungheon Jeong , Jihong Park , Mohsen Imani

With the rapid development of video Multimodal Large Language Models (MLLMs), numerous benchmarks have been proposed to assess their video understanding capability. However, due to the lack of rich events in the videos, these datasets may…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Yifan Du , Kun Zhou , Yuqi Huo , Yifan Li , Wayne Xin Zhao , Haoyu Lu , Zijia Zhao , Bingning Wang , Weipeng Chen , Ji-Rong Wen

Recent advancements in reasoning capability of Multimodal Large Language Models (MLLMs) demonstrate its effectiveness in tackling complex visual tasks. However, existing MLLM-based Video Anomaly Detection (VAD) methods remain limited to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Chao Huang , Benfeng Wang , Jie Wen , Chengliang Liu , Wei Wang , Li Shen , Xiaochun Cao

Video Anomaly Detection (VAD) automates the identification of unusual events, such as security threats in surveillance videos. In real-world applications, VAD models must effectively operate in cross-domain settings, identifying rare…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Yashika Jain , Ali Dabouei , Min Xu

Manipulated videos often contain subtle inconsistencies between their visual and audio signals. We propose a video forensics method, based on anomaly detection, that can identify these inconsistencies, and that can be trained solely using…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Chao Feng , Ziyang Chen , Andrew Owens

The rapid advancement of GenAI technology over the past few years has significantly contributed towards highly realistic deepfake content generation. Despite ongoing efforts, the research community still lacks a large-scale and reasoning…

Multimedia · Computer Science 2025-06-17 Parul Gupta , Shreya Ghosh , Tom Gedeon , Thanh-Toan Do , Abhinav Dhall

The sequential structure of videos poses a challenge to the ability of multimodal large language models (MLLMs) to locate multi-frame evidence and conduct multimodal reasoning. However, existing video benchmarks mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Kejian Zhu , Zhuoran Jin , Hongbang Yuan , Jiachun Li , Shangqing Tu , Pengfei Cao , Yubo Chen , Kang Liu , Jun Zhao

Most models for weakly supervised video anomaly detection (WS-VAD) rely on multiple instance learning, aiming to distinguish normal and abnormal snippets without specifying the type of anomaly. However, the ambiguous nature of anomaly…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Chenchen Tao , Xiaohao Peng , Chong Wang , Jiafei Wu , Puning Zhao , Jun Wang , Jiangbo Qian

Existing Video Anomaly Detection (VAD) methods typically rely on task-specific training, leading to strong domain dependency and high training costs. Moreover, most existing methods output only scalar anomaly scores, providing limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Hyeongmuk Lim , Youngbum Hur

Understanding multi-image, multi-turn scenarios is a critical yet underexplored capability for Large Vision-Language Models (LVLMs). Existing benchmarks predominantly focus on static or horizontal comparisons -- e.g., spotting visual…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Wenbo Lyu , Yingjun Du , Jinglin Zhao , Xianton Zhen , Ling Shao

Crash detection from video feeds is a critical problem in intelligent transportation systems. Recent developments in large language models (LLMs) and vision-language models (VLMs) have transformed how we process, reason about, and summarize…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Sanjeda Akter , Ibne Farabi Shihab , Anuj Sharma

Anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. We propose a deep convolutional neural network (CNN) that addresses this problem by learning a correspondence between common…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

With the rapid development of MLLMs, evaluating their visual capabilities has become increasingly crucial. Current benchmarks primarily fall into two main types: basic perception benchmarks, which focus on local details but lack deep…

Computer Vision and Pattern Recognition · Computer Science 2025-09-25 Chenhui Qiang , Zhaoyang Wei , Xumeng Han , Zipeng Wang , Siyao Li , Xiangyuan Lan , Jianbin Jiao , Zhenjun Han

Anomaly detection in videos is challenging due to the complexity, noise, and diverse nature of activities such as violence, shoplifting, and vandalism. While deep learning (DL) has shown excellent performance in this area, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Sabah Abdulazeez Jebur , Khalid A. Hussein , Haider Kadhim Hoomod , Laith Alzubaidi , Ahmed Ali Saihood , YuanTong Gu

In modern intelligent video surveillance systems, automatic anomaly detection through computer vision analytics plays a pivotal role which not only significantly increases monitoring efficiency but also reduces the burden on live…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Sijie Zhu , Chen Chen , Waqas Sultani

The ability to distinguish whether an image is generated by artificial intelligence (AI) is a crucial ingredient in human intelligence, usually accompanied by a complex and dialectical forensic and reasoning process. However, current fake…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Yixuan Li , Xuelin Liu , Xiaoyang Wang , Bu Sung Lee , Shiqi Wang , Anderson Rocha , Weisi Lin

Subtle abnormal events in videos often manifest as weak spatio-temporal cues that are easily overlooked by conventional anomaly detection systems. Existing video anomaly detection approaches typically provide coarse binary anomaly decisions…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Jihao Gu , Kun Li , He Wang , Kaan Akşit

Detecting abnormal events in video is commonly framed as a one-class classification task, where training videos contain only normal events, while test videos encompass both normal and abnormal events. In this scenario, anomaly detection is…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Andra Acsintoae , Andrei Florescu , Mariana-Iuliana Georgescu , Tudor Mare , Paul Sumedrea , Radu Tudor Ionescu , Fahad Shahbaz Khan , Mubarak Shah