Expected-case complexity of approximate nearest neighbor searching
SODA '00 Proceedings of the eleventh annual ACM-SIAM symposium on Discrete algorithms
The Recognition of Human Movement Using Temporal Templates
IEEE Transactions on Pattern Analysis and Machine Intelligence
Behavior recognition via sparse spatio-temporal features
ICCCN '05 Proceedings of the 14th International Conference on Computer Communications and Networks
Automatic temporal segment detection and affect recognition from face and body display
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on human computing
Discriminative human action recognition in the learned hierarchical manifold space
Image and Vision Computing
Automatic video activity detection using compressed domain motion trajectories for H.264 videos
Journal of Visual Communication and Image Representation
Integrated video object tracking with applications in trajectory-based event detection
Journal of Visual Communication and Image Representation
Real-time human action search using random forest based hough voting
MM '11 Proceedings of the 19th ACM international conference on Multimedia
Slow Feature Analysis for Human Action Recognition
IEEE Transactions on Pattern Analysis and Machine Intelligence
Playing into the wild: A gesture-based interface for gaming in public spaces
Journal of Visual Communication and Image Representation
Real-time human pose recognition in parts from single depth images
CVPR '11 Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
Local Naive Bayes Nearest Neighbor for image classification
CVPR '12 Proceedings of the 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Mining actionlet ensemble for action recognition with depth cameras
CVPR '12 Proceedings of the 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Conditional regression forests for human pose estimation
CVPR '12 Proceedings of the 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Detecting activities of daily living in first-person camera views
CVPR '12 Proceedings of the 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Efficient regression of general-activity human poses from depth images
ICCV '11 Proceedings of the 2011 International Conference on Computer Vision
Recognizing actions using depth motion maps-based histograms of oriented gradients
Proceedings of the 20th ACM international conference on Multimedia
Exploring the Trade-off Between Accuracy and Observational Latency in Action Recognition
International Journal of Computer Vision
Hidden Markov Model on a unit hypersphere space for gesture trajectory recognition
Pattern Recognition Letters
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In this paper, we propose an effective method to recognize human actions using 3D skeleton joints recovered from 3D depth data of RGBD cameras. We design a new action feature descriptor for action recognition based on differences of skeleton joints, i.e., EigenJoints which combine action information including static posture, motion property, and overall dynamics. Accumulated Motion Energy (AME) is then proposed to perform informative frame selection, which is able to remove noisy frames and reduce computational cost. We employ non-parametric Naive-Bayes-Nearest-Neighbor (NBNN) to classify multiple actions. The experimental results on several challenging datasets demonstrate that our approach outperforms the state-of-the-art methods. In addition, we investigate how many frames are necessary for our method to perform classification in the scenario of online action recognition. We observe that the first 30-40% frames are sufficient to achieve comparable results to that using the entire video sequences on the MSR Action3D dataset.