| Presentation | 2017-01-19 Source Estimation of en-face OCT by Sparse Signal Modeling Takumi Kawamura, Shunpei Ito, Shogo Muramatsu, Samuel Choi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This work proposes a perform source estimation method of en-face optical coherence tomography (OCT) through sparse signal modeling. The en-face OCT is a technique that enables high-resolution acquisition of tomo-graphic images of organism in short time using multi-frequency infra-red rays. The authors are trying to applyit to observe the hair cells of the cochlea of the inner ear. However, acquired data deteriorate due to optical andelectrical factors such as lens aberration and sensitivity of an image sensor for capturing reected light. From theabove reasons, a high quality image recovery technique is required. In this study, a source signal estimation methodwith 3-D non-separable oversampled lapped transform (3-D NSOLT) is proposed, which the authors proposed as aprevious work. The performance is evaluated through simulation of en-face OCT restration for arti cially generateddata. The performance is compared with FFT-domain ltering in terms of peak signal-to-noise rate (PSNR) andstructual similarity index measure （SSIM） so that the signi cance of the proposed method is veri ed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Non-separable oversampled lapped transforms / Optical coherence tomography / Sparse representation / Image restoration / Denoising |
| Paper # | IT2016-79,SIP2016-117,RCS2016-269 |
| Date of Issue | 2017-01-12 (IT, SIP, RCS) |
| Conference Information | |
| Committee | IT / SIP / RCS |
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| Conference Date | 2017/1/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka City Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing for Wireless Communications, Learning, Mathematical Science, Communication Theory, etc. |
| Chair | Masayoshi Ohashi(Fukuoka Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Hidekazu Murata(Kyoto Univ.) |
| Vice Chair | Jun Muramatsu(NTT) / Masahiro Okuda(Univ. of Kitakyushu) / Shogo Muramatsu(Niigata Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) |
| Secretary | Jun Muramatsu(Wakayama Univ.) / Masahiro Okuda(Yokohama College of Commerce) / Shogo Muramatsu(Ritsumeikan Univ.) / Satoshi Denno(Chiba Inst. of Tech.) / Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(NTT DoCoMo) |
| Assistant | Mitsugu Iwamoto(Univ. of Electro-Comm.) / Osamu Watanabe(Takushoku Univ.) / Tetsuya Yamamoto(Panasonic) / Toshihiko Nishimura(Hokkaido Univ.) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Signal Processing / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Source Estimation of en-face OCT by Sparse Signal Modeling |
| Sub Title (in English) | |
| Keyword(1) | Non-separable oversampled lapped transforms |
| Keyword(2) | Optical coherence tomography |
| Keyword(3) | Sparse representation |
| Keyword(4) | Image restoration |
| Keyword(5) | Denoising |
| 1st Author's Name | Takumi Kawamura |
| 1st Author's Affiliation | Niigta University(Niigata Univ.) |
| 2nd Author's Name | Shunpei Ito |
| 2nd Author's Affiliation | Niigta University(Niigata Univ.) |
| 3rd Author's Name | Shogo Muramatsu |
| 3rd Author's Affiliation | Niigta University(Niigata Univ.) |
| 4th Author's Name | Samuel Choi |
| 4th Author's Affiliation | Niigta University(Niigata Univ.) |
| Date | 2017-01-19 |
| Paper # | IT2016-79,SIP2016-117,RCS2016-269 |
| Volume (vol) | vol.116 |
| Number (no) | IT-394,SIP-395,RCS-396 |
| Page | pp.pp.195-200(IT), pp.195-200(SIP), pp.195-200(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-01-12 (IT, SIP, RCS) |