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Paper Abstract and Keywords
Presentation 2018-08-30 14:45
Estimation of Water Stress of Plant by the Analysis of Natural Frequency of Leaf using CCD Camera 2
Motoaki Sano, Chiharu Uchikawa, Yutaka Nakagawa, Takeyuki Ohdaira, Takashi Shirakawa, Tsuneyoshi Sugimoto (Toin Univ.) US2018-44
Abstract (in Japanese) (See Japanese page) 
(in English) In order to realize optimum irrigation control in soil cultivation, we focus on the change of the natural frequency of leaf. And we found so far that the natural frequency of leaf has diurnal change, and that when the water is sufficient, the natural frequency decreases at night and rises at daytime, but that under the water stress, the natural frequency drops at not night but daytime. Also, last time, we reported that a general purpose CCD camera was enough for the measurement instead of laser displacement sensor or high speed camera. In this report, we propose a method to find the natural frequency of leaf by dividing the frame image into squares and checking the change of the average pixel value of each rectangular area without using correlation tracking method.
Keyword (in Japanese) (See Japanese page) 
(in English) Water stress of plant / Natural frequency of leaf / CCD camera / Automatic measurement / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 199, US2018-44, pp. 19-24, Aug. 2018.
Paper # US2018-44 
Date of Issue 2018-08-23 (US) 
ISSN Print edition: ISSN 0913-5685    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 US2018-44

Conference Information
Committee US  
Conference Date 2018-08-30 - 2018-08-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2018-08-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 2 
Sub Title (in English)  
Keyword(1) Water stress of plant  
Keyword(2) Natural frequency of leaf  
Keyword(3) CCD camera  
Keyword(4) Automatic measurement  
1st Author's Name Motoaki Sano  
1st Author's Affiliation Toin University of Yokohama (Toin Univ.)
2nd Author's Name Chiharu Uchikawa  
2nd Author's Affiliation Toin University of Yokohama (Toin Univ.)
3rd Author's Name Yutaka Nakagawa  
3rd Author's Affiliation Toin University of Yokohama (Toin Univ.)
4th Author's Name Takeyuki Ohdaira  
4th Author's Affiliation Toin University of Yokohama (Toin Univ.)
5th Author's Name Takashi Shirakawa  
5th Author's Affiliation Toin University of Yokohama (Toin Univ.)
6th Author's Name Tsuneyoshi Sugimoto  
6th Author's Affiliation Toin University of Yokohama (Toin Univ.)
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Speaker Author-1 
Date Time 2018-08-30 14:45:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2018-44 
Volume (vol) vol.118 
Number (no) no.199 
Page pp.19-24 
Date of Issue 2018-08-23 (US) 

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