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Paper Abstract and Keywords
Presentation 2022-06-23 13:50
Shape tolerance analyes of three-dimensional fine-defect discrimination on dielectric surface using optical linear discrimination analysis
Shingo Shimada, Jun-ichiro Sugisaka, Koichi Hirayama, Takashi Yasui (Kitami Inst.Tech.) EMT2022-5
Abstract (in Japanese) (See Japanese page) 
(in English) Measurement of a fine defect on a dielectric substrate is difficult because the relationship between the defect shape and the scattered waves is considerably complicated. In this study, we design a computer-generated hologram to discriminate concave defects from convex defects. The hologram operates Fisher's linear discrimination for the scattered wave from the defect. The defect type can be identified from the irradiance of the light wave after passing through the hologram. Compared to conventional optical systems without holograms, the proposed system achieves high discrimination accuracy. We also examine discrimination of the different shape of defects that are not included in the training data of the hologram.
Keyword (in Japanese) (See Japanese page) 
(in English) inverse-scattering analysis / optical measurement / computer-generated hologram / Fisher’s linear discriminant analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 87, EMT2022-5, pp. 25-30, June 2022.
Paper # EMT2022-5 
Date of Issue 2022-06-16 (EMT) 
ISSN Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMT2022-5

Conference Information
Committee EMT IEE-EMT  
Conference Date 2022-06-23 - 2022-06-23 
Place (in Japanese) (See Japanese page) 
Place (in English) The Institute of Electrical Engineers of Japan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Electromagnetic Theory, etc. 
Paper Information
Registration To EMT 
Conference Code 2022-06-EMT-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Shape tolerance analyes of three-dimensional fine-defect discrimination on dielectric surface using optical linear discrimination analysis 
Sub Title (in English)  
Keyword(1) inverse-scattering analysis  
Keyword(2) optical measurement  
Keyword(3) computer-generated hologram  
Keyword(4) Fisher’s linear discriminant analysis  
1st Author's Name Shingo Shimada  
1st Author's Affiliation Kitami Institute of Technology (Kitami Inst.Tech.)
2nd Author's Name Jun-ichiro Sugisaka  
2nd Author's Affiliation Kitami Institute of Technology (Kitami Inst.Tech.)
3rd Author's Name Koichi Hirayama  
3rd Author's Affiliation Kitami Institute of Technology (Kitami Inst.Tech.)
4th Author's Name Takashi Yasui  
4th Author's Affiliation Kitami Institute of Technology (Kitami Inst.Tech.)
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Speaker Author-1 
Date Time 2022-06-23 13:50:00 
Presentation Time 25 minutes 
Registration for EMT 
Paper # EMT2022-5 
Volume (vol) vol.122 
Number (no) no.87 
Page pp.25-30 
Date of Issue 2022-06-16 (EMT) 

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