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Related papers: Learning Temporal Regularity in Video Sequences

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Identifying common patterns among events is a key ability in human and machine perception, as it underlies intelligent decision making. We propose an approach for learning semantic relational set abstractions on videos, inspired by human…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Alex Andonian , Camilo Fosco , Mathew Monfort , Allen Lee , Rogerio Feris , Carl Vondrick , Aude Oliva

We introduce a novel self-supervised learning approach to learn representations of videos that are responsive to changes in the motion dynamics. Our representations can be learned from data without human annotation and provide a substantial…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Simon Jenni , Givi Meishvili , Paolo Favaro

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

Millions of surveillance cameras operate at 24x7 generating huge amount of visual data for processing. However, retrieval of important activities from such a large data can be time consuming. Thus, researchers are working on finding…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 A. Ahmed , D. P. Dogra , S. Kar , R. Patnaik , S. Lee , H. Choi , I. Kim

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

Video sequences contain rich dynamic patterns, such as dynamic texture patterns that exhibit stationarity in the temporal domain, and action patterns that are non-stationary in either spatial or temporal domain. We show that a…

Machine Learning · Statistics 2017-05-31 Jianwen Xie , Song-Chun Zhu , Ying Nian Wu

Despite the recent success of neural networks in image feature learning, a major problem in the video domain is the lack of sufficient labeled data for learning to model temporal information. In this paper, we propose an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Linchao Zhu , Zhongwen Xu , Yi Yang

Temporal action segmentation in untrimmed videos has gained increased attention recently. However, annotating action classes and frame-wise boundaries is extremely time consuming and cost intensive, especially on large-scale datasets. To…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Wei Lin , Anna Kukleva , Horst Possegger , Hilde Kuehne , Horst Bischof

This work presents a self-supervised learning framework named TeG to explore Temporal Granularity in learning video representations. In TeG, we sample a long clip from a video and a short clip that lies inside the long clip. We then extract…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Rui Qian , Yeqing Li , Liangzhe Yuan , Boqing Gong , Ting Liu , Matthew Brown , Serge Belongie , Ming-Hsuan Yang , Hartwig Adam , Yin Cui

Video anomaly detection research is generally evaluated on short, isolated benchmark videos only a few minutes long. However, in real-world environments, security cameras observe the same scene for months or years at a time, and the notion…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Zhengye Yang , Richard Radke

Videos represent the primary source of information for surveillance applications and are available in large amounts but in most cases contain little or no annotation for supervised learning. This article reviews the state-of-the-art deep…

Computer Vision and Pattern Recognition · Computer Science 2018-01-31 B Ravi Kiran , Dilip Mathew Thomas , Ranjith Parakkal

Abnormality detection in video poses particular challenges due to the infinite size of the class of all irregular objects and behaviors. Thus no (or by far not enough) abnormal training samples are available and we need to find…

Computer Vision and Pattern Recognition · Computer Science 2015-02-24 Borislav Antić , Björn Ommer

Accounting for the increased concern for public safety, automatic abnormal event detection and recognition in a surveillance scene is crucial. It is a current open study subject because of its intricacy and utility. The identification of…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Anikeit Sethi , Krishanu Saini , Sai Mounika Mididoddi

Imagining multiple consecutive frames given one single snapshot is challenging, since it is difficult to simultaneously predict diverse motions from a single image and faithfully generate novel frames without visual distortions. In this…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Lu Sheng , Junting Pan , Jiaming Guo , Jing Shao , Xiaogang Wang , Chen Change Loy

Video sequences contain rich dynamic patterns, such as dynamic texture patterns that exhibit stationarity in the temporal domain, and action patterns that are non-stationary in either spatial or temporal domain. We show that an energy-based…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Jianwen Xie , Song-Chun Zhu , Ying Nian Wu

Stochastic video prediction models take in a sequence of image frames, and generate a sequence of consecutive future image frames. These models typically generate future frames in an autoregressive fashion, which is slow and requires the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Ananya Kumar , S. M. Ali Eslami , Danilo J. Rezende , Marta Garnelo , Fabio Viola , Edward Lockhart , Murray Shanahan

We propose a novel framework for abnormal event detection in video that requires no training sequences. Our framework is based on unmasking, a technique previously used for authorship verification in text documents, which we adapt to our…

Computer Vision and Pattern Recognition · Computer Science 2017-07-26 Radu Tudor Ionescu , Sorina Smeureanu , Bogdan Alexe , Marius Popescu

Sequential learning, also called lifelong learning, studies the problem of learning tasks in a sequence with access restricted to only the data of the current task. In this paper we look at a scenario with fixed model capacity, and…

Machine Learning · Statistics 2019-04-15 Rahaf Aljundi , Marcus Rohrbach , Tinne Tuytelaars

We consider the task of learning to extract motion from videos. To this end, we show that the detection of spatial transformations can be viewed as the detection of synchrony between the image sequence and a sequence of features undergoing…

Computer Vision and Pattern Recognition · Computer Science 2014-02-11 Kishore Reddy Konda , Roland Memisevic , Vincent Michalski

This paper presents a new self-supervised system for learning to detect novel and previously unseen categories of objects in images. The proposed system receives as input several unlabeled videos of scenes containing various objects. The…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Juntao Tan , Changkyu Song , Abdeslam Boularias