Pattern recognition: statistical, structural and neural approaches
Pattern recognition: statistical, structural and neural approaches
Fundamentals of speech recognition
Fundamentals of speech recognition
An efficient probabilistic context-free parsing algorithm that computes prefix probabilities
Computational Linguistics
Pfinder: Real-Time Tracking of the Human Body
IEEE Transactions on Pattern Analysis and Machine Intelligence
A State-Based Approach to the Representation and Recognition of Gesture
IEEE Transactions on Pattern Analysis and Machine Intelligence
Statistical methods for speech recognition
Statistical methods for speech recognition
Real-Time American Sign Language Recognition Using Desk and Wearable Computer Based Video
IEEE Transactions on Pattern Analysis and Machine Intelligence
Human motion analysis: a review
Computer Vision and Image Understanding
Statistical Language Learning
Grammar Systems: A Grammatical Approach to Distribution and Cooperation
Grammar Systems: A Grammatical Approach to Distribution and Cooperation
The Theory of Parsing, Translation, and Compiling
The Theory of Parsing, Translation, and Compiling
Optimal and Information Theoretic Syntactic Pattern Recognition for Traditional Errors
SSPR '96 Proceedings of the 6th International Workshop on Advances in Structural and Syntactical Pattern Recognition
SSPR '96 Proceedings of the 6th International Workshop on Advances in Structural and Syntactical Pattern Recognition
Automatic Recognition of Bidimensional Models Learned by Grammatical Inference in Outdoor Scenes
SSPR '96 Proceedings of the 6th International Workshop on Advances in Structural and Syntactical Pattern Recognition
Coupled hidden Markov models for complex action recognition
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Temporal Classification of Natural Gesture and Application to Video Coding
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Using Adaptive Tracking to Classify and Monitor Activities in a Site
CVPR '98 Proceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Understanding manipulation in video
FG '96 Proceedings of the 2nd International Conference on Automatic Face and Gesture Recognition (FG '96)
An efficient context-free parsing algorithm
An efficient context-free parsing algorithm
Computation of the probability of initial substring generation by stochastic context-free grammars
Computational Linguistics
Human Activity Recognition Using Multidimensional Indexing
IEEE Transactions on Pattern Analysis and Machine Intelligence
Object Recognition for Video Retrieval
CIVR '02 Proceedings of the International Conference on Image and Video Retrieval
Recognizing multitasked activities from video using stochastic context-free grammar
Eighteenth national conference on Artificial intelligence
Recognition of Human Activity through Hierarchical Stochastic Learning
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Layered Representations for Human Activity Recognition
ICMI '02 Proceedings of the 4th IEEE International Conference on Multimodal Interfaces
Video retrieval using spatio-temporal descriptors
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Proceedings of the 5th international conference on Multimodal interfaces
Untethered gesture acquisition and recognition for a multimodal conversational system
Proceedings of the 5th international conference on Multimodal interfaces
Repetitive Motion Analysis: Segmentation and Event Classification
IEEE Transactions on Pattern Analysis and Machine Intelligence
Towards automatic analysis of social interaction patterns in a nursing home environment from video
Proceedings of the 6th ACM SIGMM international workshop on Multimedia information retrieval
Multimodal detection of human interaction events in a nursing home environment
Proceedings of the 6th international conference on Multimodal interfaces
Video-based event recognition: activity representation and probabilistic recognition methods
Computer Vision and Image Understanding - Special issue on event detection in video
Layered representations for learning and inferring office activity from multiple sensory channels
Computer Vision and Image Understanding - Special issue on event detection in video
Protocols from perceptual observations
Artificial Intelligence - Special volume on connecting language to the world
Computer Vision and Image Understanding - Special issue: Attention and performance in computer vision
A System for Learning Statistical Motion Patterns
IEEE Transactions on Pattern Analysis and Machine Intelligence
Detecting social interactions of the elderly in a nursing home environment
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
On-line trajectory clustering for anomalous events detection
Pattern Recognition Letters
A survey of advances in vision-based human motion capture and analysis
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
Free viewpoint action recognition using motion history volumes
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
On-line trajectory clustering for anomalous events detection
Pattern Recognition Letters - Special issue on vision for crime detection and prevention
Extraction and Analysis of Multiple Periodic Motions in Video Sequences
IEEE Transactions on Pattern Analysis and Machine Intelligence
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
Multi-agent framework in visual sensor networks
EURASIP Journal on Applied Signal Processing
Independent increment processes for human motion recognition
Computer Vision and Image Understanding
Pattern Recognition Letters
Recognition of action meeting videos using timed automata
Machine Graphics & Vision International Journal
Boosted string representation and its application to video surveillance
Pattern Recognition
Extracting spatiotemporal human activity patterns in assisted living using a home sensor network
Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments
Monitoring human behavior in an assistive environment using multiple views
Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments
Detecting abnormal activities in video sequences
Proceedings of the 2008 Ambi-Sys workshop on Ambient media delivery and interactive television
Machine Vision and Applications
On-Line Classification of Human Activities
IbPRIA '07 Proceedings of the 3rd Iberian conference on Pattern Recognition and Image Analysis, Part II
Distributed Activity Recognition with Fuzzy-Enabled Wireless Sensor Networks
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
Human Behavior Classification Using Multiple Views
SETN '08 Proceedings of the 5th Hellenic conference on Artificial Intelligence: Theories, Models and Applications
An ontology based approach for activity recognition from video
MM '08 Proceedings of the 16th ACM international conference on Multimedia
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
Event detection for video surveillance using an expert system
AREA '08 Proceedings of the 1st ACM workshop on Analysis and retrieval of events/actions and workflows in video streams
Semantic event representation and recognition using syntactic attribute graph grammar
Pattern Recognition Letters
Hierarchical group process representation in multi-agent activity recognition
Image Communication
Navigational strategies in behaviour modelling
Artificial Intelligence
Real-world vision: Selective perception and task
ACM Transactions on Applied Perception (TAP)
Semantic Representation and Recognition of Continued and Recursive Human Activities
International Journal of Computer Vision
Unsupervised view and rate invariant clustering of video sequences
Computer Vision and Image Understanding
Analysis of Sanskrit Text: Parsing and Semantic Relations
Sanskrit Computational Linguistics
Detecting abnormal human behaviour using multiple cameras
Signal Processing
Exploiting temporal statistics for events analysis and understanding
Image and Vision Computing
Automated visual surveillance in computer vision
AMTA'09 Proceedings of the 10th WSEAS international conference on Acoustics & music: theory & applications
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
Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments
CASEE: a hierarchical event representation for the analysis of videos
AAAI'04 Proceedings of the 19th national conference on Artifical intelligence
Gesture-Controlled User Input to Complete Questionnaires on Wrist-Worn Watches
Proceedings of the 13th International Conference on Human-Computer Interaction. Part II: Novel Interaction Methods and Techniques
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
Effective semantic classification of consumer events for automatic content management
WSM '09 Proceedings of the first SIGMM workshop on Social media
Real-time illegal parking detection in outdoor environments using 1-D transformation
IEEE Transactions on Circuits and Systems for Video Technology
On parsing visual sequences with the hidden Markov model
Journal on Image and Video Processing
Protocols from perceptual observations
Artificial Intelligence - Special volume on connecting language to the world
Computer Vision and Image Understanding - Special issue: Attention and performance in computer vision
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
A dynamic hierarchical clustering method for trajectory-based unusual video event detection
IEEE Transactions on Image Processing
Sensor-Based Human Activity Recognition in a Multi-user Scenario
AmI '09 Proceedings of the European Conference on Ambient Intelligence
Human activity recognition based on the blob features
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Multi-agent activity recognition using observation decomposedhidden Markov models
Image and Vision Computing
Learning to recognize video-based spatiotemporal events
IEEE Transactions on Intelligent Transportation Systems
A self-referential perceptual inference framework for video interpretation
ICVS'03 Proceedings of the 3rd international conference on Computer vision systems
Using hidden Markov models for recognizing action primitives in complex actions
SCIA'07 Proceedings of the 15th Scandinavian conference on Image analysis
Viewpoint insensitive action recognition using envelop shape
ACCV'07 Proceedings of the 8th Asian conference on Computer vision - Volume Part II
Integrating vision and language: semantic description of traffic events from image sequences
ISVC'07 Proceedings of the 3rd international conference on Advances in visual computing - Volume Part II
DELOS'07 Proceedings of the 1st international conference on Digital libraries: research and development
Learning actions using robust string kernels
Proceedings of the 2nd conference on Human motion: understanding, modeling, capture and animation
An efficient Bayesian framework for on-line action recognition
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Towards a visual-hull based multi-agent surveillance system
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Event detection using multiple event probability sequences
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
MetroSurv: detecting events in subway stations
Multimedia Tools and Applications
Trajectory classification using switched dynamical hidden Markov models
IEEE Transactions on Image Processing
Detecting and discriminating behavioural anomalies
Pattern Recognition
Event Model Learning from Complex Videos using ILP
Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
A proposal for local and global human activities identification
AMDO'10 Proceedings of the 6th international conference on Articulated motion and deformable objects
Enhanced human behavior recognition using HMM and evaluative rectification
Proceedings of the first ACM international workshop on Analysis and retrieval of tracked events and motion in imagery streams
Towards semantic segmentation of human motion sequences
KI'10 Proceedings of the 33rd annual German conference on Advances in artificial intelligence
Robust workflow recognition using holistic features and outlier-tolerant fused hidden Markov models
ICANN'10 Proceedings of the 20th international conference on Artificial neural networks: Part I
Recognizing pair-activities by causality analysis
ACM Transactions on Intelligent Systems and Technology (TIST)
Propagation networks for recognition of partially ordered sequential action
CVPR'04 Proceedings of the 2004 IEEE computer society conference on Computer vision and pattern recognition
Human activity analysis: A review
ACM Computing Surveys (CSUR)
Recognizing human actions using NWFE-based histogram vectors
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
Propagating uncertainty in Petri nets for activity recognition
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part II
Approximate reasoning and finite state machines to the detection of actions in video sequences
International Journal of Approximate Reasoning
Behavioural analysis with movement cluster model for concurrent actions
Journal on Image and Video Processing - Special issue on advanced video-based surveillance
Hierarchical visual event pattern mining and its applications
Data Mining and Knowledge Discovery
Stochastic Representation and Recognition of High-Level Group Activities
International Journal of Computer Vision
Mining Layered Grammar Rules for Action Recognition
International Journal of Computer Vision
Probabilistic recognition of complex event
ICVS'11 Proceedings of the 8th international conference on Computer vision systems
Semantic classification of human behaviors in video surveillance systems
WSEAS Transactions on Computers
ICMI '11 Proceedings of the 13th international conference on multimodal interfaces
A suspicious behaviour detection using a context space model for smart surveillance systems
Computer Vision and Image Understanding
Multivalued default logic for identity maintenance in visual surveillance
ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part IV
Toward scalable activity recognition for sensor networks
LoCA'06 Proceedings of the Second international conference on Location- and Context-Awareness
Composition of complex motion models from elementary human motions
AMDO'06 Proceedings of the 4th international conference on Articulated Motion and Deformable Objects
Review: Situation identification techniques in pervasive computing: A review
Pervasive and Mobile Computing
Complex activity representation and recognition by extended stochastic grammar
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part I
From motion patterns to visual concepts for event analysis in dynamic scenes
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part I
Key frame-based activity representation using antieigenvalues
ACCV'06 Proceedings of the 7th Asian conference on Computer Vision - Volume Part II
Recognizing action primitives in complex actions using hidden markov models
ISVC'06 Proceedings of the Second international conference on Advances in Visual Computing - Volume Part I
S-SEER: selective perception in a multimodal office activity recognition system
MLMI'04 Proceedings of the First international conference on Machine Learning for Multimodal Interaction
A comparison of HMMs and dynamic bayesian networks for recognizing office activities
UM'05 Proceedings of the 10th international conference on User Modeling
Design of a digital forensics image mining system
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part III
Negation elimination for finite PCFGs
LOPSTR'04 Proceedings of the 14th international conference on Logic Based Program Synthesis and Transformation
Behavior recognition from multiple views using fused hidden markov models
SETN'10 Proceedings of the 6th Hellenic conference on Artificial Intelligence: theories, models and applications
Human activity monitoring by local and global finite state machines
Expert Systems with Applications: An International Journal
An event-driven, stochastic, undirected narrative (EDSUN) framework for interactive contents
TIDSE'06 Proceedings of the Third international conference on Technologies for Interactive Digital Storytelling and Entertainment
Workflow activity monitoring using dynamics of pair-wise qualitative spatial relations
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
Explaining Activities as Consistent Groups of Events
International Journal of Computer Vision
Real-time vandalism detection by monitoring object activities
Multimedia Tools and Applications
A semantic-based probabilistic approach for real-time video event recognition
Computer Vision and Image Understanding
Recognizing water-based activities in the home through infrastructure-mediated sensing
Proceedings of the 2012 ACM Conference on Ubiquitous Computing
Modeling complex temporal composition of actionlets for activity prediction
ECCV'12 Proceedings of the 12th European conference on Computer Vision - Volume Part I
SSPR'12/SPR'12 Proceedings of the 2012 Joint IAPR international conference on Structural, Syntactic, and Statistical Pattern Recognition
ECCV'10 Proceedings of the 11th European conference on Trends and Topics in Computer Vision - Volume Part I
International Journal of Computer Vision
Robust abandoned object detection integrating wide area visual surveillance and social context
Pattern Recognition Letters
Searching informative concept banks for video event detection
Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
Behavior recognition from video based on human constrained descriptor and adaptable neural networks
Proceedings of the 4th ACM/IEEE international workshop on Analysis and retrieval of tracked events and motion in imagery stream
Image and Vision Computing
Video event description in scene context
Neurocomputing
Modeling multi-object interactions using "string of feature graphs"
Computer Vision and Image Understanding
Learning and parsing video events with goal and intent prediction
Computer Vision and Image Understanding
Common-sense reasoning for human action recognition
Pattern Recognition Letters
Shopping behavior recognition using a language modeling analogy
Pattern Recognition Letters
A syntactic approach to robot imitation learning using probabilistic activity grammars
Robotics and Autonomous Systems
A multimedia presentation system using a 3D gesture interface in museums
Multimedia Tools and Applications
Multimedia Tools and Applications
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This paper describes a probabilistic syntactic approach to the detection and recognition of temporally extended activities and interactions between multiple agents. The fundamental idea is to divide the recognition problem into two levels. The lower level detections are performed using standard independent probabilistic event detectors to propose candidate detections of low-level features. The outputs of these detectors provide the input stream for a stochastic context-free grammar parsing mechanism. The grammar and parser provide longer range temporal constraints, disambiguate uncertain low-level detections, and allow the inclusion of a priori knowledge about the structure of temporal events in a given domain. To achieve such a system we: 1) provide techniques for generating a discrete symbol stream from continuous low-level detectors; 2) extend stochastic context-free parsing to handle uncertainty in the input symbol stream; 3) augment a run-time parsing algorithm to enforce intersymbol constraints such as requiring temporal consistency between primitives; and 4) extend the consistency filtering to maintain consistent multiobject interactions. We develop a real-time system and demonstrate the approach in several experiments on gesture recognition and in video surveillance. In the surveillance application, we show how the system correctly interprets activities of multiple, interacting objects.