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Paper Abstract and Keywords
Presentation 2022-07-22 15:50
On OCT Volume Data Restoration by Introducing Inter-scale Thresholding
Masaki Kakihara, Shogo Muramatsu (Niigata Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes a restoration model for volumetric data acquired by an optical coherence tomography (OCT) device.
An OCT device captures tomographic images of an object using a near-infrared laser and is used to measure the structure of biological tissue. Since various noises are superimposed on the observation signal acquired by OCT, noise reduction is required simultaneously with the interference waveform.
The authors have previously proposed a model for restoring OCT volumetric data using latent refractive index distribution and given a restoration method based on a hierarchical synthesis dictionary and the primal-dual splitting (PDS) method.
However, there is room for improvement in terms of restoration performance.
Therefore, this study proposes a model that introduces inter-scale thresholding to improve the performance.
Inter-scale thresholding is a noise reduction technique that uses parent-child relationships that emerge when signals are analyzed with a hierarchical analysis dictionary.
In this study, the effectiveness of the proposed method is verified through simulations using artificial data.
Keyword (in Japanese) (See Japanese page) 
(in English) Primal-dual splitting / Image restoration / Volumetric data restoration / OCT / / / /  
Reference Info. ITE Tech. Rep., vol. 46, no. 20, ME2022-69, pp. 19-22, July 2022.
Paper # ME2022-69 
Date of Issue 2022-07-15 (ME) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee ME  
Conference Date 2022-07-22 - 2022-07-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ME 
Conference Code 2022-07-ME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On OCT Volume Data Restoration by Introducing Inter-scale Thresholding 
Sub Title (in English)  
Keyword(1) Primal-dual splitting  
Keyword(2) Image restoration  
Keyword(3) Volumetric data restoration  
Keyword(4) OCT  
1st Author's Name Masaki Kakihara  
1st Author's Affiliation Niigata Univercity (Niigata Univ.)
2nd Author's Name Shogo Muramatsu  
2nd Author's Affiliation Niigata Univercity (Niigata Univ.)
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Speaker Author-1 
Date Time 2022-07-22 15:50:00 
Presentation Time 30 minutes 
Registration for ME 
Paper # ME2022-69 
Volume (vol) vol.46 
Number (no) no.20 
Page pp.19-22 
Date of Issue 2022-07-15 (ME) 

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