First Sight: A Human Body Outline Labeling System
IEEE Transactions on Pattern Analysis and Machine Intelligence
The Recognition of Human Movement Using Temporal Templates
IEEE Transactions on Pattern Analysis and Machine Intelligence
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Recognizing Human Actions: A Local SVM Approach
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 3 - Volume 03
Pictorial Structures for Object Recognition
International Journal of Computer Vision
Actions Sketch: A Novel Action Representation
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
Human Activity Recognition in Thermal Infrared Imagery
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Workshops - Volume 03
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
Behavior recognition via sparse spatio-temporal features
ICCCN '05 Proceedings of the 14th International Conference on Computer Communications and Networks
IEEE Transactions on Pattern Analysis and Machine Intelligence
Unsupervised Learning of Human Action Categories Using Spatial-Temporal Words
International Journal of Computer Vision
Searching for Complex Human Activities with No Visual Examples
International Journal of Computer Vision
Attention-driven action retrieval with DTW-based 3d descriptor matching
MM '08 Proceedings of the 16th ACM international conference on Multimedia
Human Pose Tracking in Monocular Sequence Using Multilevel Structured Models
IEEE Transactions on Pattern Analysis and Machine Intelligence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Histogram of oriented rectangles: A new pose descriptor for human action recognition
Image and Vision Computing
Minimal-latency human action recognition using reliable-inference
Image and Vision Computing
Behavior classification by eigendecomposition of periodic motions
Pattern Recognition
A survey on vision-based human action recognition
Image and Vision Computing
Dynamic textures for human movement recognition
Proceedings of the ACM International Conference on Image and Video Retrieval
View-Independent Action Recognition from Temporal Self-Similarities
IEEE Transactions on Pattern Analysis and Machine Intelligence
Human Action Recognition by Negative Space Analysis
CW '10 Proceedings of the 2010 International Conference on Cyberworlds
Gait recognition based on improved dynamic Bayesian networks
Pattern Recognition
Gait flow image: A silhouette-based gait representation for human identification
Pattern Recognition
A survey of vision-based methods for action representation, segmentation and recognition
Computer Vision and Image Understanding
Computer Vision and Image Understanding
Action Recognition from One Example
IEEE Transactions on Pattern Analysis and Machine Intelligence
Hough Forests for Object Detection, Tracking, and Action Recognition
IEEE Transactions on Pattern Analysis and Machine Intelligence
Gait recognition using Pose Kinematics and Pose Energy Image
Signal Processing
A novel human motion recognition method based on eigenspace
ICIAR'10 Proceedings of the 7th international conference on Image Analysis and Recognition - Volume Part I
Gait-based action recognition via accelerated minimum incremental coding length classifier
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
Statistical modeling of complex backgrounds for foreground object detection
IEEE Transactions on Image Processing
Learning and Matching of Dynamic Shape Manifolds for Human Action Recognition
IEEE Transactions on Image Processing
Discriminative two-level feature selection for realistic human action recognition
Journal of Visual Communication and Image Representation
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We proposed a region based method to recognize human actions from video sequences. Unlike other region based methods, it works with the surrounding regions of the human silhouette termed as negative space. This paper further extends the idea of negative space to cope with the changes in viewpoints. It also addresses the problem of long shadows which is one of the major challenges of human action recognition. Some systems attempt suppressing shadows during the segmentation process but our system takes input of segmented binary images of which the shadow is not suppressed. This makes our system less dependent on segmentation process. Further, this approach can complement the positive space (silhouette) based methods to boost recognition. The system consists of a hierarchical processing: histogram analysis on segmented input image, followed by motion and shape feature extraction, pose sequence analysis by employing Dynamic Time Warping and at last classification by Nearest Neighbor classifier. We evaluated our system by most commonly used datasets and achieved higher accuracy than the state of the arts methods. Our system can also retrieve video sequences from queries of human action sequences.