| Presentation | 2011-09-05 Analysis of Expressive Tempos and Rhythms with Spontaneous Facial Expressions : Influence of Transitory Stress on Facial Expressions Takashi SUTO, Hiroaki OTSU, Kazuhito SATO, Hirokazu MADOKORO, Sakura KADOWAKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a new framework based on tempos and rhythms of facial expressions. In order to clarify the relationship between psychological stress and facial expressions. We specifically examine time-series changes of arousal levels obtained from the iterations of spontaneous facial expressions. In this study, we defined spontaneous facial expressions as the actions of human's own choice. We define time-series changes of arousal levels from the maximum expressions to neutral expressions as one tempo. Moreover, we define some tempos as one rhythm. We obtain facial expressions tempos and rhythms using left-to-right Hidden Markov Models (HMMs) . We consider that facial expressions tempos and rhythms are strongly affected by transitory stress with external stimulus in psychological stress. For the evaluation experiment, we created an original facial expressions dataset in three states (normal, pleasant, unpleasant) of twenty subjects. Subsequently, we demonstrate expressions processes affected by transitory stress for extracting and analyzing facial expressions tempos and rhythms in each subject. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | HMMs / Arousal levels / SOMs / Fuzzy ART / Facial expressions spatial charts |
| Paper # | PRMU2011-65,IBISML2011-24 |
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| Committee | PRMU |
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| Conference Date | 2011/8/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of Expressive Tempos and Rhythms with Spontaneous Facial Expressions : Influence of Transitory Stress on Facial Expressions |
| Sub Title (in English) | |
| Keyword(1) | HMMs |
| Keyword(2) | Arousal levels |
| Keyword(3) | SOMs |
| Keyword(4) | Fuzzy ART |
| Keyword(5) | Facial expressions spatial charts |
| 1st Author's Name | Takashi SUTO |
| 1st Author's Affiliation | Faculty of Systems Science and Technology, Akita Prefectural University() |
| 2nd Author's Name | Hiroaki OTSU |
| 2nd Author's Affiliation | Faculty of Systems Science and Technology, Akita Prefectural University |
| 3rd Author's Name | Kazuhito SATO |
| 3rd Author's Affiliation | Faculty of Systems Science and Technology, Akita Prefectural University |
| 4th Author's Name | Hirokazu MADOKORO |
| 4th Author's Affiliation | Faculty of Systems Science and Technology, Akita Prefectural University |
| 5th Author's Name | Sakura KADOWAKI |
| 5th Author's Affiliation | SmartDesign Co., Ltd. |
| Date | 2011-09-05 |
| Paper # | PRMU2011-65,IBISML2011-24 |
| Volume (vol) | vol.111 |
| Number (no) | 193 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |