Audio-visual speaker verification using continuous fused HMMs
Dean, David B., Sridharan, Sridha, & Wark, Timothy J. (2006) Audio-visual speaker verification using continuous fused HMMs. In HCSNet workshop on Use of vision in human-computer interaction, 1-3 November, Canberra, Australia.
This paper examines audio-visual speaker verication using a novel adaptation of fused hidden Markov mod- els, in comparison to output fusion of individual clas- siers in the audio and video modalities. A com- parison of both hidden Markov model (HMM) and Gaussian mixture model (GMM) classiers in both modalities under output fusion shows that the choice of audio classier is more important than video. Al- though temporal information allows a HMM to out- perform a GMM individually in video, this temporal information does not carry through to output fusion with an audio classier, where the dierence between the two video classiers is minor. An adaptation of fused hidden Markov models, designed to be more ro- bust to within-speaker variation, is used to show that the temporal relationship between video observations and audio states can be harnessed to reduce errors in audio-visual speaker verication when compared to output fusion.
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|Item Type:||Conference Paper|
|Keywords:||audio, visual speaker recognition (AVSPR), fused hidden Markov model (FHMM)|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Pattern Recognition and Data Mining (080109)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Natural Language Processing (080107)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 2006 Australian Computer Society|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||08 Nov 2006 00:00|
|Last Modified:||22 Feb 2013 06:44|
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