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We address the problem of specific video event retrieval. Given a query video of a specific event, e.g., a concert of Madonna, the goal is to retrieve other videos of the same event that temporally overlap with the query. Our approach…

计算机视觉与模式识别 · 计算机科学 2015-12-01 Matthijs Douze , Jérôme Revaud , Jakob Verbeek , Hervé Jégou , Cordelia Schmid

Open Set Video Anomaly Detection (OpenVAD) aims to identify abnormal events from video data where both known anomalies and novel ones exist in testing. Unsupervised models learned solely from normal videos are applicable to any testing…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Yuansheng Zhu , Wentao Bao , Qi Yu

This study proposes an anomaly detection method based on the Transformer architecture with integrated multiscale feature perception, aiming to address the limitations of temporal modeling and scale-aware feature representation in cloud…

机器学习 · 计算机科学 2025-08-26 Lian Lian , Yilin Li , Song Han , Renzi Meng , Sibo Wang , Ming Wang

In this work, we propose a novel paradigm to encode the position of targets for target tracking in videos using transformers. The proposed paradigm, Dense Spatio-Temporal (DST) position encoding, encodes spatio-temporal position information…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Jinkun Cao , Hao Wu , Kris Kitani

Most existing real-time deep models trained with each frame independently may produce inconsistent results across the temporal axis when tested on a video sequence. A few methods take the correlations in the video sequence into…

计算机视觉与模式识别 · 计算机科学 2022-02-28 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

Video forgery detection is becoming an important issue in recent years, because modern editing software provide powerful and easy-to-use tools to manipulate videos. In this paper we propose to perform detection by means of deep learning,…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Dario D'Avino , Davide Cozzolino , Giovanni Poggi , Luisa Verdoliva

Instance object segmentation and tracking provide comprehensive quantification of objects across microscope videos. The recent single-stage pixel-embedding based deep learning approach has shown its superior performance compared with…

图像与视频处理 · 电气工程与系统科学 2020-11-03 Quan Liu , Isabella M. Gaeta , Mengyang Zhao , Ruining Deng , Aadarsh Jha , Bryan A. Millis , Anita Mahadevan-Jansen , Matthew J. Tyska , Yuankai Huo

Despite the prevailing transition from single-task to multi-task approaches in video anomaly detection, we observe that many adopt sub-optimal frameworks for individual proxy tasks. Motivated by this, we contend that optimizing single-task…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Guodong Shen , Yuqi Ouyang , Junru Lu , Yixuan Yang , Victor Sanchez

Video anomaly detection (VAD) aims to temporally locate abnormal events in a video. Existing works mostly rely on training deep models to learn the distribution of normality with either video-level supervision, one-class supervision, or in…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Luca Zanella , Willi Menapace , Massimiliano Mancini , Yiming Wang , Elisa Ricci

Video anomaly detection is a complex task, and the principle of "divide and conquer" is often regarded as an effective approach to tackling intricate issues. It's noteworthy that recent methods in video anomaly detection have revealed the…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Jian Xiao , Tianyuan Liu , Genlin Ji

The detection of abnormal behaviours in crowded scenes has to deal with many challenges. This paper presents an efficient method for detection and localization of anomalies in videos. Using fully convolutional neural networks (FCNs) and…

计算机视觉与模式识别 · 计算机科学 2017-05-02 Mohammad Sabokrou , Mohsen Fayyaz , Mahmood Fathy , Zahra Moayedd , Reinhard klette

Inexpensive sensing and computation, as well as insurance innovations, have made smart dashboard cameras ubiquitous. Increasingly, simple model-driven computer vision algorithms focused on lane departures or safe following distances are…

计算机视觉与模式识别 · 计算机科学 2020-05-13 Sanjay Haresh , Sateesh Kumar , M. Zeeshan Zia , Quoc-Huy Tran

Video prediction is a pixel-wise dense prediction task to infer future frames based on past frames. Missing appearance details and motion blur are still two major problems for current predictive models, which lead to image distortion and…

计算机视觉与模式识别 · 计算机科学 2020-05-25 Beibei Jin , Yu Hu , Qiankun Tang , Jingyu Niu , Zhiping Shi , Yinhe Han , Xiaowei Li

Video Anomaly Detection (VAD) aims to localize abnormal events on the timeline of long-range surveillance videos. Anomaly-scoring-based methods have been prevailing for years but suffer from the high complexity of thresholding and low…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Hui Lv , Qianru Sun

Nowadays, multivariate time series data are increasingly collected in various real world systems, e.g., power plants, wearable devices, etc. Anomaly detection and diagnosis in multivariate time series refer to identifying abnormal status in…

Temporal grounding, which localizes video moments related to a natural language query, is a core problem of vision-language learning and video understanding. To encode video moments of varying lengths, recent methods employ a multi-level…

计算机视觉与模式识别 · 计算机科学 2026-04-28 Thong Thanh Nguyen , Yi Bin , Xiaobao Wu , Zhiyuan Hu , Cong-Duy T Nguyen , See-Kiong Ng , Anh Tuan Luu

State-of-the-art visual recognition and detection systems increasingly rely on large amounts of training data and complex classifiers. Therefore it becomes increasingly expensive both to manually annotate datasets and to keep running times…

计算机视觉与模式识别 · 计算机科学 2014-12-02 Stefan Mathe , Cristian Sminchisescu

Anomaly detection is a fundamental problem in data mining field with many real-world applications. A vast majority of existing anomaly detection methods predominately focused on data collected from a single source. In real-world…

机器学习 · 计算机科学 2019-08-13 Yuening Li , Ninghao Liu , Jundong Li , Mengnan Du , Xia Hu

True understanding of videos comes from a joint analysis of all its modalities: the video frames, the audio track, and any accompanying text such as closed captions. We present a way to learn a compact multimodal feature representation that…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Vivek Sharma , Makarand Tapaswi , Rainer Stiefelhagen

Video anomaly detection (VAD) addresses the problem of automatically finding anomalous events in video data. The primary data modalities on which current VAD systems work on are monochrome or RGB images. Using depth data in this context…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Pascal Schneider , Jason Rambach , Bruno Mirbach , Didier Stricker