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Paper Abstract and Keywords
Presentation 2026-06-01 10:30
Basic Study of Gustatory-Stimulus-Induced Spatial Blood Flow Changes under Non-Specialized Camera Conditions
Yukinobu Tanaka, Seiji murata (Hitachi, Ltd.) WBS2026-2 RCC2026-2 MICT2026-2
Abstract (in Japanese) (See Japanese page) 
(in English) This study investigates a non-contact method for visualizing changes in skin blood flow induced by taste stimuli, aiming to measure dynamic physiological responses to external stimuli in humans. Based on an optical model of human skin, we propose a biological transmittance-difference method that utilizes differences in the penetration characteristics of RGB components obtained from a general-purpose camera. To suppress the influence of external disturbance factors, such as illumination conditions and camera characteristics, a compensation method is introduced, and blood-flow variation components are extracted using wavelength-difference processing between red and green channels. As a fundamental investigation, spatial changes in facial skin blood flow in response to salty taste stimulation are evaluated, demonstrating region-specific blood flow responses.
Keyword (in Japanese) (See Japanese page) 
(in English) Blood flow / External stimulus / Biological transmittance characteristics / Spatial distribution / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 48, MICT2026-2, pp. 5-8, June 2026.
Paper # MICT2026-2 
Date of Issue 2026-05-25 (WBS, RCC, MICT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 WBS2026-2 RCC2026-2 MICT2026-2

Conference Information
Committee RCC MICT WBS  
Conference Date 2026-06-01 - 2026-06-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Yokosuka Research Park(YRP) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Reliable Communication and Control, Healthcare and Medical Information Communication Technologies, Coding, Modulation, Signal processing and General 
Paper Information
Registration To MICT 
Conference Code 2026-06-RCC-MICT-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Basic Study of Gustatory-Stimulus-Induced Spatial Blood Flow Changes under Non-Specialized Camera Conditions 
Sub Title (in English)  
Keyword(1) Blood flow  
Keyword(2) External stimulus  
Keyword(3) Biological transmittance characteristics  
Keyword(4) Spatial distribution  
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1st Author's Name Yukinobu Tanaka  
1st Author's Affiliation Hitachi, Ltd. Reserch & Development Group (Hitachi, Ltd.)
2nd Author's Name Seiji murata  
2nd Author's Affiliation Hitachi, Ltd. Reserch & Development Group (Hitachi, Ltd.)
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Speaker Author-1 
Date Time 2026-06-01 10:30:00 
Presentation Time 25 minutes 
Registration for MICT 
Paper # WBS2026-2, RCC2026-2, MICT2026-2 
Volume (vol) vol.126 
Number (no) no.46(WBS), no.47(RCC), no.48(MICT) 
Page pp.5-8 
#Pages 4 
Date of Issue 2026-05-25 (WBS, RCC, MICT) 

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