Introduction to algorithms
Three-dimensional computer vision: a geometric viewpoint
Three-dimensional computer vision: a geometric viewpoint
First Sight: A Human Body Outline Labeling System
IEEE Transactions on Pattern Analysis and Machine Intelligence
Object recognition through invariant indexing
Object recognition through invariant indexing
Probabilistic analysis of the application of the cross ratio to model based vision
International Journal of Computer Vision
View-Invariant Analysis of Cyclic Motion
International Journal of Computer Vision
The visual analysis of human movement: a survey
Computer Vision and Image Understanding
Human motion analysis: a review
Computer Vision and Image Understanding
A survey of computer vision-based human motion capture
Computer Vision and Image Understanding - Modeling people toward vision-based underatanding of a person's shape, appearance, and movement
View-Invariant Representation and Recognition of Actions
International Journal of Computer Vision
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)
Invariant features for 3-D gesture recognition
FG '96 Proceedings of the 2nd International Conference on Automatic Face and Gesture Recognition (FG '96)
Real-time Human Motion Analysis by Image Skeletonization
WACV '98 Proceedings of the 4th IEEE Workshop on Applications of Computer Vision (WACV'98)
Performance Analysis and Learning Approaches for Vehicle Detection and Counting in Aerial Images
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97) -Volume 4 - Volume 4
Recognition of human body motion using phase space constraints
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
Ghost: A Human Body Part Labeling System Using Silhouettes
ICPR '98 Proceedings of the 14th International Conference on Pattern Recognition-Volume 1 - Volume 1
Quasi-Invariants for Human Action Representation and Recognition
ICPR '02 Proceedings of the 16 th International Conference on Pattern Recognition (ICPR'02) Volume 1 - Volume 1
Dynamic bayesian networks: representation, inference and learning
Dynamic bayesian networks: representation, inference and learning
Human action-recognition using mutual invariants
Computer Vision and Image Understanding
Modeling and recognition of hand gesture using colored Petri nets
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
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
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
On Signature Invariants for Effective Motion Trajectory Recognition
International Journal of Robotics Research
View-invariant action recognition using interest points
MIR '08 Proceedings of the 1st ACM international conference on Multimedia information retrieval
Motion trajectory reproduction from generalized signature description
Pattern Recognition
Video surveillance and multimedia forensics: an application to trajectory analysis
MiFor '09 Proceedings of the First ACM workshop on Multimedia in forensics
Human Activity Recognition Based on $\Re$ Transform and Fourier Mellin Transform
ISVC '09 Proceedings of the 5th International Symposium on Advances in Visual Computing: Part II
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Human behavior analysis based on a new motion descriptor
IEEE Transactions on Circuits and Systems for Video Technology
Human action recognition using boosted EigenActions
Image and Vision Computing
Discriminative human action recognition in the learned hierarchical manifold space
Image and Vision Computing
A survey on vision-based human action recognition
Image and Vision Computing
Action and gait recognition from recovered 3-D human joints
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on gait analysis
View and style-independent action manifolds for human activity recognition
ECCV'10 Proceedings of the 11th European conference on Computer vision: Part VI
Query-based retrieval of complex activities using "strings of motion-words"
WMVC'09 Proceedings of the 2009 international conference on Motion and video computing
On supervised human activity analysis for structured environments
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part III
Multifactor feature extraction for human movement recognition
Computer Vision and Image Understanding
Semantic classification of human behaviors in video surveillance systems
WSEAS Transactions on Computers
Learning semantic features for action recognition via diffusion maps
Computer Vision and Image Understanding
Survey on classifying human actions through visual sensors
Artificial Intelligence Review
Using SAX representation for human action recognition
Journal of Visual Communication and Image Representation
Intelligent multi-camera video surveillance: A review
Pattern Recognition Letters
Model-based recognition of human actions by trajectory matching in phase spaces
Image and Vision Computing
Human activities recognition using depth images
Proceedings of the 21st ACM international conference on Multimedia
A cognitive assistive system for monitoring the use of home medical devices
Proceedings of the 1st ACM international workshop on Multimedia indexing and information retrieval for healthcare
A unified tree-based framework for joint action localization, recognition and segmentation
Computer Vision and Image Understanding
Computer Vision and Image Understanding
Max-Margin Early Event Detectors
International Journal of Computer Vision
Hi-index | 0.00 |
This paper presents an approach for viewpoint invariant human action recognition, an area that has received scant attention so far, relative to the overall body of work in human action recognition. It has been established previously that there exist no invariants for 3D to 2D projection. However, there exist a wealth of techniques in 2D invariance that can be used to advantage in 3D to 2D projection. We exploit these techniques and model actions in terms of view-invariant canonical body poses and trajectories in 2D invariance space, leading to a simple and effective way to represent and recognize human actions from a general viewpoint. We first evaluate the approach theoretically and show why a straightforward application of the 2D invariance idea will not work. We describe strategies designed to overcome inherent problems in the straightforward approach and outline the recognition algorithm. We then present results on 2D projections of publicly available human motion capture data as well on manually segmented real image sequences. In addition to robustness to viewpoint change, the approach is robust enough to handle different people, minor variabilities in a given action, and the speed of aciton (and hence, frame-rate) while encoding sufficient distinction among actions.