Presentation 2000/12/14
An Adaptive Integration Method Based on Product HMM for Bi-modal Speech Recognition
Kenichi KUMATANI, Satoshi NAKAMURA, Kiyohiro SHIKANO,
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Abstract(in English) In recent years, there has been higher demands for Automatic Speech recognition system operated robustly in the various noisy environments. Therefore, many researchers have interest in the bimodal speech recognition by using not only the audio but also the visual information extracted from the sequence of the speaker's lip images. To realize the bimodal speech recognition, it is important to integrate effectively the audio and visual information. In integrating them, "(1) Synchronization of the audio and visual information, (2) Adaptability of the system, adjusting to changes in environment" are important issues. In the problem of (1), each feature of the speech and lip movement has the time lag, and has the correlation. For such the problem, we introduce the integration method using HMM composition. In (2), we have examined that the stream weight can be adaptively estimated by GPD algorithm. The evaluation experiment shows that the proposed method improves recognition accuracy of noisy speech.
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Keyword(in English) Bi-modal speech recognition / HMM / Stream weight / MCE / GPD algorithm
Paper # NLC2000-38,SP2000-86
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Committee NLC
Conference Date 2000/12/14(1days)
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Registration To Natural Language Understanding and Models of Communication (NLC)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) An Adaptive Integration Method Based on Product HMM for Bi-modal Speech Recognition
Sub Title (in English)
Keyword(1) Bi-modal speech recognition
Keyword(2) HMM
Keyword(3) Stream weight
Keyword(4) MCE
Keyword(5) GPD algorithm
1st Author's Name Kenichi KUMATANI
1st Author's Affiliation ATR Spoken Language Translation Research Laboratory : Nara Institute of Science and Technology()
2nd Author's Name Satoshi NAKAMURA
2nd Author's Affiliation ATR Spoken Language Translation Research Laboratory
3rd Author's Name Kiyohiro SHIKANO
3rd Author's Affiliation Nara Institute of Science and Technology
Date 2000/12/14
Paper # NLC2000-38,SP2000-86
Volume (vol) vol.100
Number (no) 520
Page pp.pp.-
#Pages 6
Date of Issue