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Title:Visual tracking of highly articulated objects using massively parallel processors
Author(s):Lin, Dennis
Director of Research:Huang, Thomas S.
Doctoral Committee Member(s):Ahuja, Narendra; Forsyth, David A.; Hwu, Wen-Mei W.
Department / Program:Electrical & Computer Eng
Discipline:Electrical & Computer Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):computer vision
articulated model
tracking
hand gesture
Abstract:Hand gesture recognition has the potential of simplifying human computer interactions. However, the human hand is a highly articulated object, capable of taking on many different appearances. In this work, we consider an analysis by synthesis approach to this difficult tracking problem. We attempt to overcome the vast amount of computation required by implementing the algorithm on commodity GPUs. We also collect a lengthy sequence of hand motions from five cameras in order to train and test our algorithm. We show that to achieve good tracking performance, it is important to understand the way that the hand moves. It is of secondary importance to have a good estimate of the hand shape and to be able to process the frames as quickly as possible. Under heavily controlled circumstances, we are able to achieve full tracking accuracy.
Issue Date:2012-02-06
Genre:thesis
URI:http://hdl.handle.net/2142/29829
Rights Information:Copyright 2011 Dennis Lin
Date Available in IDEALS:2012-02-06
Date Deposited:2011-12


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