Presentation | 2016-06-13 Image recognition based on discriminative models using features generated from separable lattice HMMs Yoshinari Tsuzuki, Kei Sawada, Kei Hashimoto, Yoshihiko Nankaku, Keiichi Tokuda, |
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PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | One of the major problems in image recognition is degradation in the recognition performance caused by geometric variation such as position and size of a target object. Separable lattice HMMs (SL-HMMs) have been proposed to solve this problem. However, when using them directly as generative models in classifiers, there is a possibility that the performance is inferior to that of discriminative models, because discriminative models are specialized to identification, while generative models are estimated so as to accurately reproduce training data. In this paper, we propose image recognition based on log linear models (LLMs) using features extracted from SL-HMMs. The proposed technique achieves discriminative model based image recognition invariant to geometric transformation based on derivative features including image normalization in its extraction process. Face recognition experiments showed that the proposed technique obtained higher recognition rates than the generative model based approaches. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Image recognition / hidden Markov hodels / separable lattice HMMs / log linear models / derivative features |
Paper # | PRMU2016-36,SP2016-2,WIT2016-2 |
Date of Issue | 2016-06-06 (PRMU, SP, WIT) |
Conference Information | |
Committee | PRMU / SP / WIT / ASJ-H |
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Conference Date | 2016/6/13(2days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | Eisaku Maeda(NTT) / Kazunori Mano(Shibaura Inst. of Tech.) / Kiyohiko Nunokawa(Tokyo International Univ.) |
Vice Chair | Seiichi Uchida(Kyushu Univ.) / Hironobu Fujiyoshi(Chubu Univ.) / Hiroki Mori(Utsunomiya Univ.) / Chikamune Wada(Kyushu Inst. of Tech.) |
Secretary | Seiichi Uchida(Kyoto Univ.) / Hironobu Fujiyoshi(NTT) / Hiroki Mori(Kobe Univ.) / Chikamune Wada(Shizuoka Univ.) / (Nagoya Inst. of Tech.) |
Assistant | Masaki Oonishi(AIST) / Takuya Funatomi(NAIST) / Taichi Asami(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Tomohiro Amemiya(NTT) / Takeaki Shionome(Tsukuba Univ. of Tech.) / Manabi Miyagi(Tsukuba Univ. of Tech.) |
Paper Information | |
Registration To | Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Speech / Technical Committee on Well-being Information Technology / Auditory Research Meeting |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Image recognition based on discriminative models using features generated from separable lattice HMMs |
Sub Title (in English) | |
Keyword(1) | Image recognition |
Keyword(2) | hidden Markov hodels |
Keyword(3) | separable lattice HMMs |
Keyword(4) | log linear models |
Keyword(5) | derivative features |
1st Author's Name | Yoshinari Tsuzuki |
1st Author's Affiliation | Nagoya Institute of Technology(Nagoya Inst. of Tech.) |
2nd Author's Name | Kei Sawada |
2nd Author's Affiliation | Nagoya Institute of Technology(Nagoya Inst. of Tech.) |
3rd Author's Name | Kei Hashimoto |
3rd Author's Affiliation | Nagoya Institute of Technology(Nagoya Inst. of Tech.) |
4th Author's Name | Yoshihiko Nankaku |
4th Author's Affiliation | Nagoya Institute of Technology(Nagoya Inst. of Tech.) |
5th Author's Name | Keiichi Tokuda |
5th Author's Affiliation | Nagoya Institute of Technology(Nagoya Inst. of Tech.) |
Date | 2016-06-13 |
Paper # | PRMU2016-36,SP2016-2,WIT2016-2 |
Volume (vol) | vol.116 |
Number (no) | PRMU-89,SP-90,WIT-91 |
Page | pp.pp.7-12(PRMU), pp.7-12(SP), pp.7-12(WIT), |
#Pages | 6 |
Date of Issue | 2016-06-06 (PRMU, SP, WIT) |