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Date of Publication:2009-01-01
Journal:自动化学报
Volume:35
Issue:7
Page Number:1016-1021
ISSN No.:0254-4156
Abstract:A mean shift quasi-Monte Carlo (MS-QMC) method is proposed for speaker
tracking. To explore the state space more efficiently, deterministic
samplers are used instead of random draws according to a quasi-Monte
Carlo integration rule in the new method. Furthermore, a mean shift
procedure is applied to move particles toward the modes of the
posterior, leading to a more effective allocation of particles thereupon
fewer particles are needed. Simulation results show that compared with
the traditional particle filter, both speaker tracking accuracy and
convergent rate of the proposed method are improved.
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