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Paper Abstract and Keywords
Presentation 2017-06-27 15:50
Estimation of Water Stress of Plant by the Analysis of Natural Frequency of Leaf using CCD Camera
Motoaki Sano, Chiharu Uchikawa, Yutaka Nakagawa, Takeyuki Ohdaira, Takashi Shirakawa, Tsuneyoshi Sugimoto (Toin Univ. of Yokohama) US2017-26
Abstract (in Japanese) (See Japanese page) 
(in English) In order to perform optimum irrigation control in soil cultivation, it is necessary to estimate the water stress of plant non-invasively. As a way to do this, we focus on the change in natural frequency of leaf, and we found so far that the natural frequency of the leaves changes diurnally. That is, when the water is sufficient, the natural frequency decreases at night and increases during the day, but when wilting starts, the decrease occurs not at night but during the day. Although a laser displacement sensor or a high speed camera was used for these measurements, it is thought to be possible to measure them using a normal CCD camera. In this paper, we report the result of verifying that it is possible.
Keyword (in Japanese) (See Japanese page) 
(in English) Water stress of plant / Natural frequency of leaf / CCD camera / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 111, US2017-26, pp. 31-36, June 2017.
Paper # US2017-26 
Date of Issue 2017-06-20 (US) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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)
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Conference Information
Committee US  
Conference Date 2017-06-27 - 2017-06-27 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To US 
Conference Code 2017-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of Water Stress of Plant by the Analysis of Natural Frequency of Leaf using CCD Camera 
Sub Title (in English)  
Keyword(1) Water stress of plant  
Keyword(2) Natural frequency of leaf  
Keyword(3) CCD camera  
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1st Author's Name Motoaki Sano  
1st Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
2nd Author's Name Chiharu Uchikawa  
2nd Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
3rd Author's Name Yutaka Nakagawa  
3rd Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
4th Author's Name Takeyuki Ohdaira  
4th Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
5th Author's Name Takashi Shirakawa  
5th Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
6th Author's Name Tsuneyoshi Sugimoto  
6th Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
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Speaker Author-1 
Date Time 2017-06-27 15:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2017-26 
Volume (vol) vol.117 
Number (no) no.111 
Page pp.31-36 
#Pages
Date of Issue 2017-06-20 (US) 


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