IEEE Transactions on Pattern Analysis and Machine Intelligence
International Journal of Human-Computer Studies - Application of affective computing in humanComputer interaction
Cognition, Technology and Work
A spatio-temporal extension to Isomap nonlinear dimension reduction
ICML '04 Proceedings of the twenty-first international conference on Machine learning
Cross-cultural differences in recognizing affect from body posture
Interacting with Computers
Temporal motion models for monocular and multiview 3D human body tracking
Computer Vision and Image Understanding - Special issue on modeling people: Vision-based understanding of a person's shape, appearance, movement, and behaviour
International Journal of Robotics Research
Detecting Affect from Non-stylised Body Motions
ACII '07 Proceedings of the 2nd international conference on Affective Computing and Intelligent Interaction
Motion Capture and Emotion: Affect Detection in Whole Body Movement
ACII '07 Proceedings of the 2nd international conference on Affective Computing and Intelligent Interaction
Automatic Detection of Learner's Affect From Gross Body Language
Applied Artificial Intelligence
Fast gesture recognition based on a two-level representation
Pattern Recognition Letters
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
Representation of functional data in neural networks
Neurocomputing
Recognition of affect based on gait patterns
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics - Special issue on gait analysis
Gesture-Based affective computing on motion capture data
ACII'05 Proceedings of the First international conference on Affective Computing and Intelligent Interaction
Measuring statistical dependence with hilbert-schmidt norms
ALT'05 Proceedings of the 16th international conference on Algorithmic Learning Theory
IEEE Transactions on Robotics
Supervised nonlinear dimensionality reduction for visualization and classification
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Functional classification in Hilbert spaces
IEEE Transactions on Information Theory
Hi-index | 0.10 |
This paper investigates the use of statistical dimensionality reduction (DR) techniques for discriminative low dimensional embedding to enable affective movement recognition. Human movements are defined by a collection of sequential observations (time-series features) representing body joint angle or joint Cartesian trajectories. In this work, these sequential observations are modelled as temporal functions using B-spline basis function expansion, and dimensionality reduction techniques are adapted to enable application to the functional observations. The DR techniques adapted here are: Fischer discriminant analysis (FDA), supervised principal component analysis (PCA), and Isomap. These functional DR techniques along with functional PCA are applied on affective human movement datasets and their performance is evaluated using leave-one-out cross validation with a one-nearest neighbour classifier in the corresponding low-dimensional subspaces. The results show that functional supervised PCA outperforms the other DR techniques examined in terms of classification accuracy and time resource requirements.