| Presentation | 2018-05-17 On OCT Volumetric Data Restoration via Hierarchical Sparsity and Hard Constraint Shogo Muramatsu, Satoshi Nagayama, Samuel Choi, Shunsuke Ono, Takeru Ota, Fumiaki Nin, Hiroshi Hibino, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This work proposes a novel restoration method for optical coherence tomography (OCT) data. OCT is a measurement technique that acquires a tomographic image in the order of a few $mu$m scale by using a near infrared laser. In order to deeply understand the mechanism of sensory epithelium in cochlear, the authors are working on dynamic tomographic imaging of hair cells of guinea pig in vivo and develop a multi-frequency swept (MS) enface OCT device. Currently, the device faces to a problem that the reflected light is quite weak, and a help of image processing is demanded to estimate the reflectional distribution hidden in noise. In the article cite{icassp2018}, a restoration method is given by reducing the problem to a regularized least squares one with a hard constraint for reflections. This work further proposes to introduce another regularization and constraint for the latent refractive index distribution. The significance of the proposed model is verified by simulation on artificial data. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Volumetric data restoration / Primal-dual proximal splitting method / Sparse regularization / Hard constraint / BM4D / OCT |
| Paper # | SIP2018-3,IE2018-3,PRMU2018-3,MI2018-3 |
| Date of Issue | 2018-05-10 (SIP, IE, PRMU, MI) |
| Conference Information | |
| Committee | PRMU / MI / IE / SIP |
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| Conference Date | 2018/5/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shinichi Sato(NII) / Kensaku Mori(Nagoya Univ.) / Takayuki Hamamoto(Tokyo Univ. of Science) / Masahiro Okuda(Univ. of Kitakyushu) |
| Vice Chair | Hironobu Fujiyoshi(Chubu Univ.) / Yoshihisa Ijiri(Omron) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) / Kazuya Kodama(NII) / Hideaki Kimata(NTT) / Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) |
| Secretary | Hironobu Fujiyoshi(AIST) / Yoshihisa Ijiri(NAIST) / Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.) / Kazuya Kodama(Nagoya Univ.) / Hideaki Kimata(KDDI Research) / Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) |
| Assistant | Masato Ishii(NEC) / Yusuke Sugano(Osaka Univ.) / Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.) / Yasutaka Matsuo(NHK) / Kazuya Hayase(NTT) / Masayoshi Nakamoto(Hiroshima Univ.ひろ) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Medical Imaging / Technical Committee on Image Engineering / Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On OCT Volumetric Data Restoration via Hierarchical Sparsity and Hard Constraint |
| Sub Title (in English) | |
| Keyword(1) | Volumetric data restoration |
| Keyword(2) | Primal-dual proximal splitting method |
| Keyword(3) | Sparse regularization |
| Keyword(4) | Hard constraint |
| Keyword(5) | BM4D |
| Keyword(6) | OCT |
| 1st Author's Name | Shogo Muramatsu |
| 1st Author's Affiliation | Niigata University(Niigata Univ.) |
| 2nd Author's Name | Satoshi Nagayama |
| 2nd Author's Affiliation | Niigata University(Niigata Univ.) |
| 3rd Author's Name | Samuel Choi |
| 3rd Author's Affiliation | Niigata University(Niigata Univ.) |
| 4th Author's Name | Shunsuke Ono |
| 4th Author's Affiliation | Tokyo Institute of Technology(Tokyo Institute of Tech.) |
| 5th Author's Name | Takeru Ota |
| 5th Author's Affiliation | Niigata University(Niigata Univ.) |
| 6th Author's Name | Fumiaki Nin |
| 6th Author's Affiliation | Niigata University(Niigata Univ.) |
| 7th Author's Name | Hiroshi Hibino |
| 7th Author's Affiliation | Niigata University(Niigata Univ.) |
| Date | 2018-05-17 |
| Paper # | SIP2018-3,IE2018-3,PRMU2018-3,MI2018-3 |
| Volume (vol) | vol.118 |
| Number (no) | SIP-33,IE-34,PRMU-35,MI-36 |
| Page | pp.pp.7-12(SIP), pp.7-12(IE), pp.7-12(PRMU), pp.7-12(MI), |
| #Pages | 6 |
| Date of Issue | 2018-05-10 (SIP, IE, PRMU, MI) |