First Sight: A Human Body Outline Labeling System
IEEE Transactions on Pattern Analysis and Machine Intelligence
Pfinder: Real-Time Tracking of the Human Body
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
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
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
FTW: fast similarity search under the time warping distance
Proceedings of the twenty-fourth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
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
Measure Locally, Reason Globally: Occlusion-sensitive Articulated Pose Estimation
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 2
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
IEEE Transactions on Pattern Analysis and Machine Intelligence
Speeded-Up Robust Features (SURF)
Computer Vision and Image Understanding
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
Human Pose Tracking in Monocular Sequence Using Multilevel Structured Models
IEEE Transactions on Pattern Analysis and Machine Intelligence
Human Motion Tracking by Registering an Articulated Surface to 3D Points and Normals
IEEE Transactions on Pattern Analysis and Machine Intelligence
Space-Time Shapelets for Action Recognition
WMVC '08 Proceedings of the 2008 IEEE Workshop on Motion and video Computing
Histogram of oriented rectangles: A new pose descriptor for human action recognition
Image and Vision Computing
Frame difference energy image for gait recognition with incomplete silhouettes
Pattern Recognition Letters
Single-Frame 3D Human Pose Recovery from Multiple Views
Proceedings of the 31st DAGM Symposium on Pattern Recognition
Minimal-latency human action recognition using reliable-inference
Image and Vision Computing
Human action recognition using boosted EigenActions
Image and Vision Computing
A survey on vision-based human action recognition
Image and Vision Computing
Fast communication: Active energy image plus 2DLPP for gait recognition
Signal Processing
Human activity analysis: A review
ACM Computing Surveys (CSUR)
A survey of vision-based methods for action representation, segmentation and recognition
Computer Vision and Image Understanding
Human action recognition by extracting features from negative space
ICIAP'11 Proceedings of the 16th international conference on Image analysis and processing - Volume Part II
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
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
Hi-index | 12.05 |
Due to the number of potential applications and their inherent complexity, automatic capture and analysis of actions have become an active research area. In this paper, an implicit method for recognizing actions in a video is proposed. Existing implicit methods work on the regions of subjects, but our proposed system works on the surrounding regions, called negative spaces, of the subjects. Extracting features from negative spaces facilitates the system to extract simple, yet effective features for describing actions. These negative-space based features are robust to deformed actions, such as complex boundary variations, partial occlusions, non-rigid deformations and small shadows. Unlike other implicit methods, our method does not require dimensionality reduction, thereby significantly improving the processing time. Further, we propose a new method to detect cycles of different actions automatically. In the proposed system, first, the input image sequence is background segmented and shadows are eliminated from the segmented images. Next, motion based features are computed for the sequence. Then, the negative space based description of each pose is obtained and the action descriptor is formed by combining the pose descriptors. Nearest Neighbor classifier is applied to recognize the action of the input sequence. The proposed system was evaluated on both publically available action datasets and a new fish action dataset for comparison, and showed improvement in both its accuracy and processing time. Moreover, the proposed system showed very good accuracy for corrupted image sequences, particularly in the case of noisy segmentation, and lower frame rate. Further, it has achieved highest accuracy with lowest processing time compared with the state-of-art methods.