| Presentation | 2018-08-20 Experiment on OCT Volumetric Data Restoration via Hierarchical Sparsity and Hard Constraint Genki Fujii, Shogo Muramatsu, 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) | In this report, we try to apply the restoration algorithm proposed in [1] to real observation data acquired byoptical coherence tomography (OCT). In order to deeply understand the mechanism of sensory epithelium in cochlear,we are working on dynamic tomographic imaging of hair cells of guinea pigin vivoand develop a multi-frequencyswept (MS)en-faceOCT device. Currently, the device faces to a problem that the re ected light from biotissue isquite weak. In [1], the restoration problem is reduced to a least squares problem which imposes a hierarchical sparsityregularization and hard constraint, and an algorithm is derived to solve the problem in the framework of Primal-dualproximal splitting (PDS) method. Although the signi cance of the proposed model was veri ed by simulation forarti cial data, there is room for additional experiments since the optimum value of the regularization parameters wasnot sufficiently investigated. Thus, this work searches optimal parameters in a wider range, and based on the results,conducts an experiment for real observation data to verify the signi cance of the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Volumetric data restoration / Primal-dual proximal splitting (PDS) method / OCT |
| Paper # | SIP2018-58 |
| Date of Issue | 2018-08-13 (SIP) |
| Conference Information | |
| Committee | SIP |
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| Conference Date | 2018/8/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Takushoku Univ. Bunkyo Campus. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shogo Muramatsu(Niigata Univ.) |
| Vice Chair | Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) |
| Secretary | Naoyuki Aikawa(Takushoku Univ.) / Kazunori Hayashi(Hiroshima Univ.) |
| Assistant | Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) |
| Paper Information | |
| Registration To | 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) | Experiment 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 (PDS) method |
| Keyword(3) | OCT |
| 1st Author's Name | Genki Fujii |
| 1st Author's Affiliation | Niigata University(Niigata Univ.) |
| 2nd Author's Name | Shogo Muramatsu |
| 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 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 | 2018-08-20 |
| Paper # | SIP2018-58 |
| Volume (vol) | vol.118 |
| Number (no) | SIP-182 |
| Page | pp.pp.7-12(SIP), |
| #Pages | 6 |
| Date of Issue | 2018-08-13 (SIP) |