| Presentation | 2010-06-25 Face recognition based on extended separable lattice HMMs Keisuke KUMAKI, Yoshihiko NANKAKU, Keiichi TOKUDA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In image recognition systems, it needs to deal with geometrical variations of an object, e.g. location, size, rotation and etc. Separable lattice hidden Markov models (SL-HMMs) have been proposed as probabilistic models including the normalization process for such variations. SL-HMMs have horizontal and vertical state sequences and makes it possible to model invariances to the size and location of an object. However, SL-HMMs cannot deal with rotation and distortion. This paper proposes extended separable lattice HMMs which have state sequences corresponding to each row and column of an input image. By complicated state alignments due to increasing the state alignments, the proposed models can deal with rotation and distortion. We also derive a training algorithm based on the variational EM algorithm and evaluate the effectiveness of the proposed model in face recognition experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | hidden Markov model / face recognition / separable lattice HMM / EM algorithm / variational approximation |
| Paper # | PRMU2010-46,HIP2010-35 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2010/6/17(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) | Face recognition based on extended separable lattice HMMs |
| Sub Title (in English) | |
| Keyword(1) | hidden Markov model |
| Keyword(2) | face recognition |
| Keyword(3) | separable lattice HMM |
| Keyword(4) | EM algorithm |
| Keyword(5) | variational approximation |
| 1st Author's Name | Keisuke KUMAKI |
| 1st Author's Affiliation | Dept. of Computer Science and Engineering, Nagoya Institute of Technology() |
| 2nd Author's Name | Yoshihiko NANKAKU |
| 2nd Author's Affiliation | Dept. of Computer Science and Engineering, Nagoya Institute of Technology |
| 3rd Author's Name | Keiichi TOKUDA |
| 3rd Author's Affiliation | Dept. of Computer Science and Engineering, Nagoya Institute of Technology |
| Date | 2010-06-25 |
| Paper # | PRMU2010-46,HIP2010-35 |
| Volume (vol) | vol.110 |
| Number (no) | 97 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |