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Paper Abstract and Keywords
Presentation 2019-02-19 11:30
Improvement of noise separation accuracy in image reconstruction in virtual phase conjugation based optical tomography
Sota Nagayoshi, Atsushi Okamoto (Hokkaido Univ.), Yuta Goto (Fukui Univ.), Kazuhisa Ogawa, Akihisa Tomita (Hokkaido Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Virtual phase conjugation based optical tomography (VPC-OT) realizes single-shot three-dimensional (3D) measurement. In the VPC-OT, the signal is extracted by a low pass filter because the low frequency component is dominant. At that time, since noise is diffused in frequency, it cannot be sufficiently removed with a low-pass filter, which degrades the reproduction quality of the tomograms. Therefore, in this paper, we introduce the filtering which has the nonlinear response to the intensity of the passing light for improving the noise separation accuracy in image reproduction. Then to confirm the effects of the proposal filter, a simulation for reproducing the tomogram with the proposal filter in VPC-OT was carried out, and the results are reported.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical tomography / Optical complex amplitude control / Digital phase conjugation / Phase detection / Virtual optics / / /  
Reference Info. ITE Tech. Rep., vol. 43, no. 5, AIT2019-11, pp. 71-74, Feb. 2019.
Paper # AIT2019-11 
Date of Issue 2019-02-12 (MMS, HI, ME, AIT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2019-02-19 - 2019-02-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Processing, etc. 
Paper Information
Registration To AIT 
Conference Code 2019-02-ME-IE-ITS-MMS-HI-AIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of noise separation accuracy in image reconstruction in virtual phase conjugation based optical tomography 
Sub Title (in English)  
Keyword(1) Optical tomography  
Keyword(2) Optical complex amplitude control  
Keyword(3) Digital phase conjugation  
Keyword(4) Phase detection  
Keyword(5) Virtual optics  
1st Author's Name Sota Nagayoshi  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Atsushi Okamoto  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Yuta Goto  
3rd Author's Affiliation Fukui University (Fukui Univ.)
4th Author's Name Kazuhisa Ogawa  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
5th Author's Name Akihisa Tomita  
5th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Date Time 2019-02-19 11:30:00 
Presentation Time 15 
Registration for AIT 
Paper # ITE-MMS2019-11,ITE-HI2019-11,ITE-ME2019-33,ITE-AIT2019-11 
Volume (vol) ITE-43 
Number (no) no.5 
Page pp.71-74 
#Pages ITE-4 
Date of Issue ITE-MMS-2019-02-12,ITE-HI-2019-02-12,ITE-ME-2019-02-12,ITE-AIT-2019-02-12 

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