| Presentation | 2010-10-08 An abnormal sound detection method using multi-stage GMM for surveillance microphone Akinori ITO, Akihito AIBA, Masashi ITO, Shozo MAKINO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been developing a method for detecting abnormal sound events from audio signal recorded in real environments, which uses the multi-stage Gaussian Mixture Models (GMM) that learns rare sounds using multiple GMMs. In this paper, we investigate relationship between sound environment and detection performance, and we found that the performance deteriorates in noisy environments. The performance largely depended on SN ratio of the abnormal sounds. Next, we investigated methods for determining hyperparameters of the multi-stage GMM, which involves intermediate thresholds, numbers of mixture of GMMs and the detection threshold. From the experimental results, combination of Percentile-based threshold determination and Bayesian information criterion (BIC)-based mixture determination was most effective. However, when using the automatically-determined parameters, the detection performance deteriorated around 20%. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CCTV / incident detection / abnormal sound detection / Gaussian mixture model |
| Paper # | PRMU2010-88,SP2010-44,WIT2010-32 |
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| Conference Information | |
| Committee | WIT |
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| Conference Date | 2010/10/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Well-being Information Technology(WIT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An abnormal sound detection method using multi-stage GMM for surveillance microphone |
| Sub Title (in English) | |
| Keyword(1) | CCTV |
| Keyword(2) | incident detection |
| Keyword(3) | abnormal sound detection |
| Keyword(4) | Gaussian mixture model |
| 1st Author's Name | Akinori ITO |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Akihito AIBA |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Masashi ITO |
| 3rd Author's Affiliation | Tohoku Institute of Technology |
| 4th Author's Name | Shozo MAKINO |
| 4th Author's Affiliation | Tohoku Bunka Gakuen University |
| Date | 2010-10-08 |
| Paper # | PRMU2010-88,SP2010-44,WIT2010-32 |
| Volume (vol) | vol.110 |
| Number (no) | 221 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |