Title
Down-sampling Coupled to Elastic Kernel Machines for Efficient Recognition of Isolated Gestures
Abstract
In the field of gestural action recognition, many studies have focused on dimensionality reduction along the spatial axis, to reduce both the variability of gestural sequences expressed in the reduced space, and the computational complexity of their processing. It is noticeable that very few of these methods have explicitly addressed the dimensionality reduction along the time axis. This is however a major issue with regard to the use of elastic distances characterized by a quadratic complexity. To partially fill this apparent gap, we present in this paper an approach based on temporal down-sampling associated to elastic kernel machine learning. We experimentally show, on two data sets that are widely referenced in the domain of human gesture recognition, and very different in terms of quality of motion capture, that it is possible to significantly reduce the number of skeleton frames while maintaining a good recognition rate. The method proves to give satisfactory results at a level currently reached by state-of-the-art methods on these data sets. The computational complexity reduction makes this approach eligible for real-time applications.
Year
DOI
Venue
2014
10.1109/ICPR.2014.71
Pattern Recognition
Keywords
Field
DocType
computational complexity,gesture recognition,image sampling,learning (artificial intelligence),computational complexity,dimensionality reduction,elastic kernel machine learning,elastic kernel machines,gestural action recognition,gestural sequences variability,quadratic complexity,spatial axis,temporal down-sampling
Kernel (linear algebra),Computer vision,Dimensionality reduction,Pattern recognition,Computer science,Kernel embedding of distributions,Support vector machine,Gesture recognition,Polynomial kernel,Artificial intelligence,Kernel method,Computational complexity theory
Conference
Volume
ISSN
Citations 
abs/1408.3944
1051-4651
2
PageRank 
References 
Authors
0.37
18
3
Name
Order
Citations
PageRank
Pierre-François Marteau11115.92
Sylvie Gibet236752.50
Clément Reverdy320.37