Abstract
Visual images synchronized with audio signals can provide user-friendly interface for man machine interactions. The visual speech can be represented as a sequence of visemes, which are the generic face images corresponding to particular sounds. We use HMMs (hidden Markov models) to convert audio signals to a sequence of visemes. In this paper, we compare two approaches in using HMMs. In the first approach, an HMM is trained for each triviseme which is a viseme with its left and right context, and the audio signals are directly recognized as a sequence of trivisemes. In the second approach, each triphone is modeled with an HMM, and a general triphone recognizer is used to produce a triphone sequence from the audio signals. The triviseme or triphone sequence is then converted to a viseme sequence. The performances of the two viseme recognition systems are evaluated on the TIMIT speech corpus.
Original language | English |
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Title of host publication | Intelligent Data Engineering and Automated Learning - IDEAL 2002 - 3rd International Conference, Proceedings |
Editors | Hujun Yin, Nigel Allinson, Richard Freeman, John Keane, Simon Hubbard |
Publisher | Springer Verlag |
Pages | 557-561 |
Number of pages | 5 |
ISBN (Print) | 9783540440253 |
DOIs | |
Publication status | Published - 2002 |
Event | 3rd International Conference on Intelligent Data Engineering and Automated Learning, IDEAL 2002 - Manchester, United Kingdom Duration: 2002 Aug 12 → 2002 Aug 14 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 2412 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Other
Other | 3rd International Conference on Intelligent Data Engineering and Automated Learning, IDEAL 2002 |
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Country/Territory | United Kingdom |
City | Manchester |
Period | 02/8/12 → 02/8/14 |
Bibliographical note
Publisher Copyright:© Springer-Verlag Berlin Heidelberg 2002.
ASJC Scopus subject areas
- Theoretical Computer Science
- General Computer Science