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T-Space at The University of Toronto Libraries >
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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/25403

Title: A Novel Accelerometer-based Gesture Recognition System
Authors: Akl, Ahmad
Advisor: Shahrokh, Valaee
Department: Electrical and Computer Engineering
Keywords: Gesture Recognition
Compressive Sensing
Dynamic Time Warping
Artificial Intelligence
Affinity Propagation
Accelerometers
Issue Date: 14-Dec-2010
Abstract: Gesture Recognition provides an efficient human-computer interaction for interactive and intelligent computing. In this work, we address the problem of gesture recognition using the theory of random projection and by formulating the recognition problem as an $\ell_1$-minimization problem. The gesture recognition uses a single 3-axis accelerometer for data acquisition and comprises two main stages: a training stage and a testing stage. For training, the system employs dynamic time warping as well as affinity propagation to create exemplars for each gesture while for testing, the system projects all candidate traces and also the unknown trace onto the same lower dimensional subspace for recognition. A dictionary of 18 gestures is defined and a database of over 3,700 traces is created from 7 subjects on which the system is tested and evaluated. Simulation results reveal a superior performance, in terms of accuracy and computational complexity, compared to other systems in the literature.
URI: http://hdl.handle.net/1807/25403
Appears in Collections:Master
The Edward S. Rogers Sr. Department of Electrical & Computer Engineering - Master theses

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