Pfinder: Real-Time Tracking of the Human Body
IEEE Transactions on Pattern Analysis and Machine Intelligence
Learning Patterns of Activity Using Real-Time Tracking
IEEE Transactions on Pattern Analysis and Machine Intelligence
Normalized Cuts and Image Segmentation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Event Detection and Analysis from Video Streams
IEEE Transactions on Pattern Analysis and Machine Intelligence
Co-clustering documents and words using bipartite spectral graph partitioning
Proceedings of the seventh ACM SIGKDD international conference on Knowledge discovery and data mining
Coupled hidden Markov models for complex action recognition
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
The Representation and Recognition of Human Movement Using Temporal Templates
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
W4: Who? When? Where? What? A Real Time System for Detecting and Tracking People
FG '98 Proceedings of the 3rd. International Conference on Face & Gesture Recognition
Recognizing Action at a Distance
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Multimodal group action clustering in meetings
Proceedings of the ACM 2nd international workshop on Video surveillance & sensor networks
A data-driven approach to quantifying natural human motion
ACM SIGGRAPH 2005 Papers
A System for Learning Statistical Motion Patterns
IEEE Transactions on Pattern Analysis and Machine Intelligence
Unsupervised analysis of activity sequences using event-motifs
Proceedings of the 4th ACM international workshop on Video surveillance and sensor networks
Detecting irregularity in videos using kernel estimation and KD trees
MULTIMEDIA '06 Proceedings of the 14th annual ACM international conference on Multimedia
A general method for human activity recognition in video
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
Detecting Irregularities in Images and in Video
International Journal of Computer Vision
Learning, detection and representation of multi-agent events in videos
Artificial Intelligence
Mixed-state models for nonstationary multiobject activities
EURASIP Journal on Applied Signal Processing
Incremental and adaptive abnormal behaviour detection
Computer Vision and Image Understanding
Unsupervised Learning of Human Action Categories Using Spatial-Temporal Words
International Journal of Computer Vision
The evolution of video surveillance: an overview
Machine Vision and Applications
Application of the Unusual Motion Detection Using CHLAC to the Video Surveillance
Neural Information Processing
Video event detection using motion relativity and visual relatedness
MM '08 Proceedings of the 16th ACM international conference on Multimedia
Action video retrieval based on atomic action vocabulary
MIR '08 Proceedings of the 1st ACM international conference on Multimedia information retrieval
Categorizing bi-object video activities using bag of segments and causality features
VNBA '08 Proceedings of the 1st ACM workshop on Vision networks for behavior analysis
Salient event-detection in video surveillance scenarios
AREA '08 Proceedings of the 1st ACM workshop on Analysis and retrieval of events/actions and workflows in video streams
Video event segmentation and visualisation in non-linear subspace
Pattern Recognition Letters
Navigational strategies in behaviour modelling
Artificial Intelligence
Detecting motion patterns via direction maps with application to surveillance
Computer Vision and Image Understanding
Unsupervised view and rate invariant clustering of video sequences
Computer Vision and Image Understanding
Analysis of Human Actions for Video Indexing
PCM '08 Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Efficient duration and hierarchical modeling for human activity recognition
Artificial Intelligence
Detecting abnormal human behaviour using multiple cameras
Signal Processing
Exploiting temporal statistics for events analysis and understanding
Image and Vision Computing
Unsupervised Real-Time Unusual Behavior Detection for Biometric-Assisted Visual Surveillance
ICB '09 Proceedings of the Third International Conference on Advances in Biometrics
A novel sequence representation for unsupervised analysis of human activities
Artificial Intelligence
Unusual Activity Analysis in Video Sequences
RSFDGrC '07 Proceedings of the 11th International Conference on Rough Sets, Fuzzy Sets, Data Mining and Granular Computing
Abnormal Behavior Recognition Using Self-Adaptive Hidden Markov Models
ICIAR '09 Proceedings of the 6th International Conference on Image Analysis and Recognition
Multiple agent event detection and representation in videos
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 1
Detecting stochastically scheduled activities in video
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
COMPSAC '09 Proceedings of the 2009 33rd Annual IEEE International Computer Software and Applications Conference - Volume 02
IEEE Transactions on Circuits and Systems for Video Technology
Proceedings of the ACM International Conference on Image and Video Retrieval
A dynamic hierarchical clustering method for trajectory-based unusual video event detection
IEEE Transactions on Image Processing
Abnormal Event Analysis Using Patching Matching and Concentric Features
KES '09 Proceedings of the 13th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems: Part II
Learning to recognize video-based spatiotemporal events
IEEE Transactions on Intelligent Transportation Systems
MAPACo-training: a novel online learning algorithm of behavior models
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part I
A double layer background model to detect unusual events
ACIVS'07 Proceedings of the 9th international conference on Advanced concepts for intelligent vision systems
Semi-latent Dirichlet allocation: a hierarchical model for human action recognition
Proceedings of the 2nd conference on Human motion: understanding, modeling, capture and animation
Learning actions using robust string kernels
Proceedings of the 2nd conference on Human motion: understanding, modeling, capture and animation
Exceptional motion frames detection by means of spatiotemporal region of interest features
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Detection of user-defined, semantically high-level, composite events, and retrieval of event queries
Multimedia Tools and Applications
Detecting and discriminating behavioural anomalies
Pattern Recognition
Cooperative object tracking and composite event detection with wireless embedded smart cameras
IEEE Transactions on Image Processing - Special section on distributed camera networks: sensing, processing, communication, and implementation
Real-time detection of unusual regions in image streams
Proceedings of the international conference on Multimedia
Video topic modelling with behavioural segmentation
Proceedings of the 1st ACM international workshop on Multimodal pervasive video analysis
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part I
A data-driven approach for event prediction
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part II
Recognizing pair-activities by causality analysis
ACM Transactions on Intelligent Systems and Technology (TIST)
A macro-observation scheme for abnormal event detection in daily-life video sequences
EURASIP Journal on Advances in Signal Processing - Special issue on advanced image processing for defense and security applications
Novel kernel-based recognizers of human actions
EURASIP Journal on Advances in Signal Processing - Special issue on video analysis for human behavior understanding
A survey of vision-based methods for action representation, segmentation and recognition
Computer Vision and Image Understanding
Goal-based trajectory analysis for unusual behaviour detection in intelligent surveillance
Image and Vision Computing
Anomalous video event detection using spatiotemporal context
Computer Vision and Image Understanding
Vision-based contingency detection
Proceedings of the 6th international conference on Human-robot interaction
Proceedings of the 6th international conference on Human-robot interaction
Automatic workflow monitoring in industrial environments
ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part I
Hierarchical visual event pattern mining and its applications
Data Mining and Knowledge Discovery
Detecting anomalies in people's trajectories using spectral graph analysis
Computer Vision and Image Understanding
Integrated video object tracking with applications in trajectory-based event detection
Journal of Visual Communication and Image Representation
Dynamic texture analysis and classification using deterministic partially self-avoiding walks
ACIVS'11 Proceedings of the 13th international conference on Advanced concepts for intelligent vision systems
Human behavior clustering for anomaly detection
Frontiers of Computer Science in China
A comprehensive study of visual event computing
Multimedia Tools and Applications
Trajectory Analysis and Semantic Region Modeling Using Nonparametric Hierarchical Bayesian Models
International Journal of Computer Vision
Multicamera video summarization from optimal reconstruction
ACCV'10 Proceedings of the 2010 international conference on Computer vision - Volume Part I
Detecting frequent patterns in video using partly locality sensitive hashing
ACCV'10 Proceedings of the 2010 international conference on Computer vision - Volume Part I
Multi-granularity video unusual event detection based on infinite Hidden Markov models
AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
A suspicious behaviour detection using a context space model for smart surveillance systems
Computer Vision and Image Understanding
MICCAI'05 Proceedings of the 8th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Key frame-based activity representation using antieigenvalues
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part II
Activity recognition via classification constrained diffusion maps
ISVC'06 Proceedings of the Second international conference on Advances in Visual Computing - Volume Part I
Adaptive integration of multiple cues for contingency detection
HBU'11 Proceedings of the Second international conference on Human Behavior Unterstanding
Intelligent video surveillance system: 3-tier context-aware surveillance system with metadata
Multimedia Tools and Applications
Anomalistic sequence detection
International Journal of Intelligent Information and Database Systems
Finding "unexplained" activities in video
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Two
Video Behaviour Mining Using a Dynamic Topic Model
International Journal of Computer Vision
Learning common behaviors from large sets of unlabeled temporal series
Image and Vision Computing
Incremental behavior modeling and suspicious activity detection
Pattern Recognition
Kernelized temporal cut for online temporal segmentation and recognition
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part III
Retrieving actions in group contexts
ECCV'10 Proceedings of the 11th European conference on Trends and Topics in Computer Vision - Volume Part I
Human action segmentation and classification based on the Isomap algorithm
Multimedia Tools and Applications
Abnormal event detection in crowded scenes using sparse representation
Pattern Recognition
Dynamic texture analysis and segmentation using deterministic partially self-avoiding walks
Expert Systems with Applications: An International Journal
Visual interestingness in image sequences
Proceedings of the 21st ACM international conference on Multimedia
3D teleimmersive activity classification based on application-system metadata
Proceedings of the 21st ACM international conference on Multimedia
Computer Vision and Image Understanding
Activity clustering for anomaly detection
International Journal of Intelligent Information and Database Systems
Multicamera video summarization and anomaly detection from activity motifs
ACM Transactions on Sensor Networks (TOSN)
Editor's Choice Article: Human activity recognition in videos using a single example
Image and Vision Computing
Learning discriminative localization from weakly labeled data
Pattern Recognition
Video event detection for fault monitoring in assembly automation
International Journal of Intelligent Systems Technologies and Applications
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We present an unsupervised technique for detecting unusual activity in a large video set using many simple features. No complex activity models and no supervised feature selections are used. We divide the video into equal length segments and classify the extracted features into prototypes, from which a prototype-segment co-occurrence matrix is computed. Motivated by a similar problem in document-keyword analysis, we seek a correspondence relationship between prototypes and video segments which satisfies the transitive closure constraint. We show that an important sub-family of correspondence functions can be reduced to co-embedding prototypes and segments to N-D Euclidean space. We prove that an efficient, globally optimal algorithm exists for the co-embedding problem. Experiments on various real-life videos have validated our approach.