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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Peng Shen Tamura, S. Hayamizu, S. |
| Copyright Year | 2012 |
| Description | Author affiliation: Graduate School of Engineering, Gifu University, Japan (Peng Shen) || Department of Information Science, Gifu University, Japan (Tamura, S.; Hayamizu, S.) |
| Abstract | In this paper, we propose to use noise reduction technology on both speech signal and visual signal by using exemplar-based sparse representation features for audio-visual speech recognition. First, we introduce sparse representation classification technology and describe how to utilize the sparse imputation to reduce noise not only for audio signal but also for visual signal. We utilize a normalization method to improve the accuracy of the sparse representation classification, and propose a method to reduce the error rate of visual signal when using the normalization method. We show the effectiveness of our proposed noise reduction method and that the audio features achieved up to 88.63% accuracy at −5dB, a 6.24% absolute improvement is achieved over the additive noise reduction method, and the visual features achieved 27.24% absolute improvement at gamma noise. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 451185 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781467348638 |
| e-ISBN | 9780615700502 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-12-03 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | APSIPA |
| Subject Keyword | Additive noise Visualization Dictionaries Accuracy Noise reduction Speech |
| Content Type | Text |
| Resource Type | Article |
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